Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Reno, NV
Issued by NWS Reno, NV
809
FNUS55 KREV 151921
FWFREV
Fire Weather Planning Forecast
National Weather Service Reno NV
1221 PM PDT Tue Sep 15 2026
.DISCUSSION...
Gusty S/SW winds will support brief 1 to 3 hours of elevated to locally
critical conditions Wednesday afternoon from the Sierra Front into Mono
and Mineral counties. There is a chance of rain and isolated thunderstorms
near the Oregon border Wednesday and Thursday. Increased E/NE breezes
arrive along the Sierra crest Friday into Saturday. Warm and dry weather
with typical afternoon breezes is favored this weekend.
Note: Thunderstorms imply gusty and erratic winds.
Note: Mixing Heights are in feet above ground level of the valley floors.
Note: Please see operating plan for detailed zone descriptions
https://www.weather.gov/wrh/fire?wfo=rev
NVZ420-161430-
Northern Sierra Front including Carson City, Douglas, Storey,
Southern Washoe, Western Lyon, and Far Southern Lassen Counties-
1221 PM PDT Tue Sep 15 2026
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Min Temperature....
* Valleys..........38-48.
* Mid Slope........43-53.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........44-54%.
* Mid Slope........30-40%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....West winds 9 to 14 mph. Gusts to 25 mph in the
evening.
* Ridge Top........West winds 10 to 15 mph with gusts to 25 mph.
* Mixing Height......3700-4700 ft agl in the evening then 200-500
ft agl.
* Transport Winds....West 10 to 15 mph.
* Ventilation........Excellent decreasing to poor after midnight.
.WEDNESDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Max Temperature....
* Valleys..........72-82.
* Mid Slope........68-78.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........10-20%.
* Mid Slope........14-24%.
* 24 hr trend......4% wetter.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming south 9 to 14 mph
with gusts to 25 mph in the afternoon.
* Ridge Top........South winds 10 to 15 mph with gusts to 25 mph.
* Mixing Height......1900-2900 ft agl increasing to 7700-8700 ft
agl in the afternoon.
* Transport Winds....Light winds becoming south 15 to 20 mph in the
afternoon.
* Ventilation........Good increasing to excellent in the afternoon.
.WEDNESDAY NIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...5%.
* Min Temperature....
* Valleys..........40-50.
* Mid Slope........43-52.
* Max Humidity.......
* Valleys..........53-63%.
* Mid Slope........44-54%.
* 20-Foot Winds......
* Valleys/Slope....West winds 9 to 16 mph with gusts to 30 mph
decreasing to 7 to 12 mph with gusts to 20 mph
in the late evening and overnight.
* Ridge Top........West winds 10 to 20 mph with gusts to 30 mph.
* Mixing Height......4300-5300 ft agl decreasing to 600 ft agl
after midnight.
* Transport Winds....West 10 to 15 mph.
* Ventilation........Excellent decreasing to marginal after
midnight.
.THURSDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Max Temperature....
* Valleys..........69-79.
* Mid Slope........65-75.
* Min Humidity.......
* Valleys..........12-22%.
* Mid Slope........18-28%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming west 8 to 13 mph
with gusts to 20 mph in the late morning and
afternoon.
* Ridge Top........Southwest winds 10 to 20 mph with gusts to 35
mph.
* Mixing Height......700 ft agl increasing to 7300-8300 ft agl in
the afternoon.
* Transport Winds....Light winds becoming southwest 15 to 20 mph in
the afternoon.
* Ventilation........Marginal increasing to excellent in the
afternoon.
.Extended...
.THURSDAY NIGHT...Clear. Lows 39-49. West winds 9 to 15 mph becoming
downslope 2 to 5 mph.
.FRIDAY...Clear. Highs 70-80. Lows 39-49. Slope winds.
.SATURDAY...Clear. Highs 73-83. Lows 44-54. Slope winds.
.SUNDAY...Partly cloudy. Highs 75-85. Lows 47-57. Slope winds.
.MONDAY THROUGH TUESDAY...Clear. Highs 75-85. Lows 47-57.
$$
NVZ421-161430-
Southern Sierra Front including Alpine, Northern Mono, Southern
Lyon, and Western Mineral Counties-
1221 PM PDT Tue Sep 15 2026
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Min Temperature....
* Valleys..........33-43.
* Mid Slope........45-55.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........43-53%.
* Mid Slope........30-40%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Southwest winds 9 to 14 mph with gusts to 25
mph.
* Ridge Top........Southwest winds 10 to 20 mph with gusts to 35
mph.
* Mixing Height......3900-4900 ft agl decreasing to 600 ft agl
after midnight.
* Transport Winds....Southwest 10 to 15 mph.
* Ventilation........Excellent decreasing to marginal after
midnight.
.WEDNESDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Max Temperature....
* Valleys..........72-82.
* Mid Slope........65-75.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........8-18%.
* Mid Slope........9-19%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....South winds 7 to 12 mph with gusts to 20 mph
shifting to the east with gusts to 30 mph
early in the afternoon, then increasing to
southwest 10 to 17 mph with gusts to 30 mph
late in the afternoon.
* Ridge Top........Southwest winds 15 to 25 mph with gusts to 35
mph.
* Mixing Height......1700-2700 ft agl increasing to 7300-8300 ft
agl in the afternoon.
* Transport Winds....South 10 to 15 mph increasing to 15 to 25 mph
in the afternoon.
* Ventilation........Very good increasing to excellent in the
afternoon.
.WEDNESDAY NIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Min Temperature....
* Valleys..........33-43.
* Mid Slope........44-54.
* Max Humidity.......
* Valleys..........50-60%.
* Mid Slope........37-47%.
* 20-Foot Winds......
* Valleys/Slope....West winds 13 to 20 mph with gusts to 35 mph
becoming southwest 8 to 13 mph with gusts to
25 mph in the late evening and overnight.
* Ridge Top........Southwest winds 10 to 20 mph with gusts to 35
mph increasing to 20 to 30 mph with gusts to
45 mph after midnight.
* Mixing Height......3900-4900 ft agl decreasing to 600 ft agl
after midnight.
* Transport Winds....Southwest 10 to 20 mph.
* Ventilation........Excellent decreasing to marginal after
midnight.
.THURSDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Max Temperature....
* Valleys..........69-79.
* Mid Slope........63-73.
* Min Humidity.......
* Valleys..........10-20%.
* Mid Slope........11-21%.
* 20-Foot Winds......
* Valleys/Slope....Southwest winds 7 to 12 mph in the morning
becoming upslope 4 to 8 mph, then becoming
west 9 to 14 mph with gusts to 25 mph late in
the afternoon.
* Ridge Top........Southwest winds 20 to 30 mph with gusts to 50
mph decreasing to 10 to 20 mph with gusts to
30 mph in the afternoon.
* Mixing Height......600-1100 ft agl increasing to 6800-7800 ft agl
in the afternoon.
* Transport Winds....Southwest 10 to 15 mph increasing to 15 to 25
mph in the afternoon.
* Ventilation........Fair increasing to excellent in the afternoon.
.Extended...
.THURSDAY NIGHT...Clear. Lows 32-42. West winds 9 to 14 mph in the
evening becoming downslope 2 to 5 mph.
.FRIDAY...Clear. Highs 70-80. Lows 32-42. Northeast winds 10 to
15 mph.
.SATURDAY...Clear. Highs 73-83. Lows 36-46. Slope winds.
.SUNDAY...Partly cloudy. Highs 74-84. Lows 40-50. Slope winds.
.MONDAY...Partly cloudy. Highs 74-84. Lows 39-49.
.TUESDAY...Sunny. Highs 73-83.
$$
CAZ272-161430-
Greater Lake Tahoe and Truckee Area-
1221 PM PDT Tue Sep 15 2026
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Min Temperature....
* Valleys..........33-43.
* Mid Slope........41-51.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........62-72%.
* Mid Slope........38-48%.
* 24 hr trend......5% drier.
* 20-Foot Winds......
* Valleys/Slope....Southwest winds 8 to 13 mph. Gusts to 20 mph in
the evening.
* Ridge Top........Southwest winds 10 to 20 mph. Gusts to 35 mph
increasing to 40 mph late in the night.
* Mixing Height......2000-3000 ft agl decreasing to 600 ft agl
after midnight.
* Transport Winds....Southwest 15 to 25 mph.
* Ventilation........Very good decreasing to marginal after
midnight.
.WEDNESDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Max Temperature....
* Valleys..........62-70.
* Mid Slope........57-67.
* 24 hr trend......4 degrees cooler.
* Min Humidity.......
* Valleys..........26-36%.
* Mid Slope........25-35%.
* 24 hr trend......8% wetter.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming southwest 9 to 14
mph with gusts to 25 mph in the late morning
and afternoon.
* Ridge Top........Southwest winds 10 to 20 mph with gusts to 40
mph.
* Mixing Height......2000-3000 ft agl increasing to 6400-7400 ft
agl in the afternoon.
* Transport Winds....Southwest 15 to 25 mph.
* Ventilation........Very good increasing to excellent in the
afternoon.
.WEDNESDAY NIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Min Temperature....
* Valleys..........34-44.
* Mid Slope........38-48.
* Max Humidity.......
* Valleys..........67-77%.
* Mid Slope........60-70%.
* 20-Foot Winds......
* Valleys/Slope....Southwest winds 7 to 12 mph with gusts to 25 mph
in the evening becoming downslope 2 to 5 mph.
* Ridge Top........Southwest winds 10 to 20 mph with gusts to 35
mph increasing to 20 to 30 mph with gusts to
45 mph after midnight.
* Mixing Height......2600-3600 ft agl decreasing to 700 ft agl
after midnight.
* Transport Winds....Southwest 15 to 25 mph decreasing to 10 to 15
mph after midnight.
* Ventilation........Excellent decreasing to marginal after
midnight.
.THURSDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Max Temperature....
* Valleys..........60-66.
* Mid Slope........54-64.
* Min Humidity.......
* Valleys..........31-41%.
* Mid Slope........30-40%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming southwest 5 to 10
mph with gusts to 20 mph late in the
afternoon.
* Ridge Top........Southwest winds 20 to 30 mph. Gusts to 45 mph in
the morning.
* Mixing Height......900-1400 ft agl increasing to 5700-6700 ft agl
in the afternoon.
* Transport Winds....Southwest 10 to 15 mph increasing to 15 to 25
mph in the afternoon.
* Ventilation........Fair increasing to excellent in the afternoon.
.Extended...
.THURSDAY NIGHT...Clear. Lows 35-45. Downslope 2 to 5 mph.
.FRIDAY...Clear. Highs 65-74. Lows 35-45. Slope winds.
.SATURDAY...Clear. Highs 68-78. Lows 40-50. Slope winds.
.SUNDAY...Partly cloudy. Highs 68-78. Lows 43-53. Slope winds.
.MONDAY THROUGH TUESDAY...Clear. Highs 67-77. Lows 42-52.
$$
NVZ423-161430-
West Humboldt Basin in Pershing County-
1221 PM PDT Tue Sep 15 2026
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Min Temperature....
* Valleys..........36-46.
* Mid Slope........44-54.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........43-53%.
* Mid Slope........24-34%.
* 24 hr trend......4% drier.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........Southwest winds 10 to 15 mph.
* Mixing Height......3500-4500 ft agl in the evening then 200-500
ft agl.
* Transport Winds....West 10 to 15 mph.
* Ventilation........Excellent decreasing to poor after midnight.
.WEDNESDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Max Temperature....
* Valleys..........78-84.
* Mid Slope........72-82.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........10-17%.
* Mid Slope........11-17%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph.
* Ridge Top........Light winds. Gusts to 20 mph early in the
afternoon.
* Mixing Height......1700-2200 ft agl increasing to 7600-8600 ft
agl in the afternoon.
* Transport Winds....Light winds becoming south 10 to 15 mph in the
afternoon.
* Ventilation........Fair increasing to excellent in the afternoon.
.WEDNESDAY NIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...5%.
* Min Temperature....
* Valleys..........42-52.
* Mid Slope........45-55.
* Max Humidity.......
* Valleys..........39-49%.
* Mid Slope........28-38%.
* 20-Foot Winds......
* Valleys/Slope....Northwest winds 7 to 12 mph.
* Ridge Top........Northwest winds 10 to 15 mph. Gusts to 25 mph in
the late evening and overnight.
* Mixing Height......4200-5200 ft agl decreasing to 600-1100 ft agl
after midnight.
* Transport Winds....West 10 to 15 mph.
* Ventilation........Excellent decreasing to fair after midnight.
.THURSDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Max Temperature....
* Valleys..........74-82.
* Mid Slope........69-79.
* Min Humidity.......
* Valleys..........16-24%.
* Mid Slope........18-24%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming southwest 9 to 14
mph in the afternoon.
* Ridge Top........Southwest winds 10 to 15 mph with gusts to 30
mph.
* Mixing Height......600-1000 ft agl increasing to 7400-8400 ft agl
in the afternoon.
* Transport Winds....Southwest 10 to 20 mph.
* Ventilation........Marginal increasing to excellent in the
afternoon.
.Extended...
.THURSDAY NIGHT...Clear. Lows 42-52. West winds 9 to 14 mph in the
evening becoming downslope 2 to 5 mph.
.FRIDAY THROUGH SATURDAY...Clear. Highs 76-85. Lows 42-52. Slope
winds.
.SUNDAY...Partly cloudy. Highs 82-88. Lows 46-56. Slope winds.
.MONDAY...Partly cloudy. Highs 82-88. Lows 48-58.
.TUESDAY...Sunny. Highs 80-86.
$$
NVZ429-161430-
Lahontan Basin including Churchill and Eastern Mineral Counties-
1221 PM PDT Tue Sep 15 2026
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Min Temperature....
* Valleys..........41-51.
* Mid Slope........45-54.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........40-50%.
* Mid Slope........26-36%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Downslope 2 to 5 mph.
* Ridge Top........West winds 10 to 15 mph.
* Mixing Height......3800-4800 ft agl in the evening then 200-500
ft agl.
* Transport Winds....West 10 to 15 mph.
* Ventilation........Excellent decreasing to poor after midnight.
.WEDNESDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Max Temperature....
* Valleys..........76-86.
* Mid Slope........73-83.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........8-18%.
* Mid Slope........9-17%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming northeast 8 to 13
mph with gusts to 20 mph in the afternoon.
* Ridge Top........Southwest winds 10 to 15 mph shifting to the
west in the late morning and afternoon. Gusts
to 25 mph in the late morning and afternoon.
* Mixing Height......1600-2100 ft agl increasing to 7400-8400 ft
agl in the afternoon.
* Transport Winds....Southwest 10 to 15 mph.
* Ventilation........Fair increasing to excellent in the afternoon.
.WEDNESDAY NIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Min Temperature....
* Valleys..........43-53.
* Mid Slope........45-55.
* Max Humidity.......
* Valleys..........49-59%.
* Mid Slope........32-42%.
* 20-Foot Winds......
* Valleys/Slope....West winds 9 to 14 mph. Gusts to 30 mph in the
evening then 20 mph after midnight.
* Ridge Top........West winds 10 to 15 mph with gusts to 30 mph
shifting to the southwest 15 to 25 mph with
gusts to 40 mph in the late evening and
overnight.
* Mixing Height......4600-5600 ft agl decreasing to 600-1100 ft agl
after midnight.
* Transport Winds....West 10 to 15 mph.
* Ventilation........Excellent decreasing to marginal after
midnight.
.THURSDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Max Temperature....
* Valleys..........74-84.
* Mid Slope........71-81.
* Min Humidity.......
* Valleys..........11-21%.
* Mid Slope........10-20%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming west 5 to 10 mph
late in the afternoon.
* Ridge Top........Southwest winds 10 to 20 mph with gusts to 30
mph.
* Mixing Height......600 ft agl increasing to 6600-7600 ft agl in
the afternoon.
* Transport Winds....Light winds becoming southwest 10 to 15 mph in
the afternoon.
* Ventilation........Poor increasing to excellent in the afternoon.
.Extended...
.THURSDAY NIGHT...Clear. Lows 41-51. Northwest winds 9 to 14 mph
until early morning becoming downslope 2 to 5 mph.
.FRIDAY...Clear. Highs 73-83. Lows 41-51. Northwest winds 10 to
15 mph.
.SATURDAY...Clear. Highs 77-87. Lows 42-52. Slope winds.
.SUNDAY...Partly cloudy. Highs 79-89. Lows 45-55. Slope winds.
.MONDAY...Partly cloudy. Highs 79-89. Lows 46-56.
.TUESDAY...Sunny. Highs 78-88.
$$
CAZ270-278-NVZ458-161430-
Surprise Valley California-Eastern Lassen County-
Northern Washoe County-
1221 PM PDT Tue Sep 15 2026
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...5%.
* Min Temperature....
* Valleys..........33-43.
* Mid Slope........39-49.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........54-64%.
* Mid Slope........37-47%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....West winds 9 to 15 mph with gusts to 25 mph
until early morning becoming downslope 2 to 5
mph.
* Ridge Top........West winds 10 to 15 mph.
* Mixing Height......4200-5200 ft agl in the evening then 200-500
ft agl.
* Transport Winds....West 10 to 15 mph.
* Ventilation........Excellent decreasing to poor after midnight.
.WEDNESDAY...
* Sky/Weather........Mostly sunny. Slight chance of showers in the
afternoon.
* Chance of Thunder..0%.
* Chc Wetting Rain...5%.
* Max Temperature....
* Valleys..........70-80.
* Mid Slope........67-75.
* 24 hr trend......4 degrees cooler.
* Min Humidity.......
* Valleys..........12-22%.
* Mid Slope........16-25%.
* 24 hr trend......6% wetter.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming southeast 8 to 13
mph with gusts to 20 mph in the afternoon.
* Ridge Top........Southeast winds 10 to 15 mph.
* Mixing Height......1800-2800 ft agl increasing to 8200-9200 ft
agl in the afternoon.
* Transport Winds....Light winds becoming south 15 to 20 mph in the
afternoon.
* Ventilation........Good increasing to excellent in the afternoon.
.WEDNESDAY NIGHT...
* Sky/Weather........Partly cloudy then becoming mostly cloudy.
Chance of showers after midnight.
* Chance of Thunder..0%.
* Chc Wetting Rain...5%.
* Min Temperature....
* Valleys..........35-45.
* Mid Slope........40-50.
* Max Humidity.......
* Valleys..........59-69%.
* Mid Slope........45-55%.
* 20-Foot Winds......
* Valleys/Slope....West winds 8 to 13 mph with gusts to 20 mph
until early morning becoming downslope 2 to 5
mph.
* Ridge Top........West winds 10 to 15 mph. Gusts to 25 mph in the
evening.
* Mixing Height......4400-5400 ft agl decreasing to 800-1300 ft agl
after midnight.
* Transport Winds....Southwest 10 to 15 mph.
* Ventilation........Excellent decreasing to fair after midnight.
.THURSDAY...
* Sky/Weather........Partly cloudy. Chance of showers in the
morning. Slight chance of thunderstorms in the
afternoon.
* Chance of Thunder..20%.
* Chc Wetting Rain...5%.
* Max Temperature....
* Valleys..........67-77.
* Mid Slope........64-72.
* Min Humidity.......
* Valleys..........14-24%.
* Mid Slope........20-30%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming west 9 to 14 mph in
the afternoon.
* Ridge Top........West winds 10 to 15 mph with gusts to 25 mph.
* Mixing Height......600-1000 ft agl increasing to 6500-7500 ft agl
in the afternoon.
* Transport Winds....Southwest 10 to 15 mph.
* Ventilation........Marginal increasing to excellent in the
afternoon.
.Extended...
.THURSDAY NIGHT...Partly cloudy in the evening then clearing. Lows
35-45. West winds 9 to 14 mph in the evening becoming downslope 2 to
5 mph.
.FRIDAY...Clear. Highs 71-81. Lows 35-45. Slope winds.
.SATURDAY...Clear. Highs 74-84. Lows 39-49. Slope winds.
.SUNDAY...Partly cloudy. Highs 76-86. Lows 42-52. Slope winds.
.MONDAY THROUGH TUESDAY...Clear. Highs 76-86. Lows 41-51.
$$
CAZ271-161430-
Western Lassen, Eastern Plumas, and Eastern Sierra Counties-
1221 PM PDT Tue Sep 15 2026
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...5%.
* Min Temperature....
* Valleys..........30-40.
* Mid Slope........40-50.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........61-71%.
* Mid Slope........37-47%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....West winds 9 to 14 mph with gusts to 25 mph in
the evening becoming downslope 2 to 5 mph.
* Ridge Top........Southwest winds 10 to 15 mph with gusts to 25
mph.
* Mixing Height......3200-4200 ft agl in the evening then 200-500
ft agl.
* Transport Winds....Southwest 10 to 20 mph.
* Ventilation........Excellent decreasing to poor after midnight.
.WEDNESDAY...
* Sky/Weather........Mostly sunny. Slight chance of showers in the
afternoon.
* Chance of Thunder..0%.
* Chc Wetting Rain...5%.
* Max Temperature....
* Valleys..........66-76.
* Mid Slope........62-72.
* 24 hr trend......6 degrees cooler.
* Min Humidity.......
* Valleys..........20-30%.
* Mid Slope........20-30%.
* 24 hr trend......11% wetter.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming south 8 to 13 mph
with gusts to 20 mph in the afternoon.
* Ridge Top........South winds 10 to 20 mph with gusts to 30 mph.
* Mixing Height......2100-3100 ft agl increasing to 8200-9200 ft
agl in the afternoon.
* Transport Winds....South 10 to 15 mph increasing to 15 to 25 mph
in the afternoon.
* Ventilation........Very good increasing to excellent in the
afternoon.
.WEDNESDAY NIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Min Temperature....
* Valleys..........30-40.
* Mid Slope........39-49.
* Max Humidity.......
* Valleys..........75-85%.
* Mid Slope........57-67%.
* 20-Foot Winds......
* Valleys/Slope....Southwest winds 5 to 10 mph with gusts to 20 mph
in the evening becoming downslope 2 to 5 mph.
* Ridge Top........Southwest winds 10 to 15 mph with gusts to 30
mph.
* Mixing Height......3800-4800 ft agl in the evening then 200-500
ft agl.
* Transport Winds....Southwest 10 to 15 mph.
* Ventilation........Excellent decreasing to poor after midnight.
.THURSDAY...
* Sky/Weather........Sunny then becoming partly cloudy. Slight
chance of thunderstorms in the afternoon.
* Chance of Thunder..20%.
* Chc Wetting Rain...5%.
* Max Temperature....
* Valleys..........63-73.
* Mid Slope........60-70.
* Min Humidity.......
* Valleys..........25-35%.
* Mid Slope........25-35%.
* 20-Foot Winds......
* Valleys/Slope....Upslope 4 to 8 mph becoming west 5 to 10 mph
with gusts to 20 mph late in the afternoon.
* Ridge Top........Southwest winds 10 to 15 mph with gusts to 30
mph.
* Mixing Height......600-1100 ft agl increasing to 5800-6800 ft agl
in the afternoon.
* Transport Winds....Southwest 10 to 15 mph.
* Ventilation........Marginal increasing to excellent in the
afternoon.
.Extended...
.THURSDAY NIGHT...Clear. Lows 31-41. West winds 5 to 10 mph in the
evening becoming downslope 2 to 5 mph.
.FRIDAY THROUGH SATURDAY...Clear. Highs 72-82. Lows 31-41. Slope
winds.
.SUNDAY...Partly cloudy. Highs 75-85. Lows 38-48. Slope winds.
.MONDAY THROUGH TUESDAY...Clear. Highs 74-84. Lows 38-48.
$$
CAZ274-161430-
Southern Mono County-
1221 PM PDT Tue Sep 15 2026
.TONIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Min Temperature....
* Valleys..........32-42.
* Mid Slope........39-49.
* 24 hr trend......Little change.
* Max Humidity.......
* Valleys..........55-65%.
* Mid Slope........28-38%.
* 24 hr trend......5% drier.
* 20-Foot Winds......
* Valleys/Slope....Southwest winds 9 to 16 mph with gusts to 30 mph
decreasing to 5 to 10 mph with gusts to 20 mph
late in the night.
* Ridge Top........Southwest winds 10 to 15 mph with gusts to 30
mph.
* Mixing Height......3600-4600 ft agl decreasing to 600 ft agl
after midnight.
* Transport Winds....Southwest 10 to 20 mph.
* Ventilation........Excellent decreasing to marginal after
midnight.
.WEDNESDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Max Temperature....
* Valleys..........68-78.
* Mid Slope........64-74.
* 24 hr trend......Little change.
* Min Humidity.......
* Valleys..........8-18%.
* Mid Slope........10-20%.
* 24 hr trend......Little change.
* 20-Foot Winds......
* Valleys/Slope....Southwest winds 9 to 14 mph with gusts to 30 mph
increasing to 13 to 20 mph with gusts to 35
mph late in the afternoon.
* Ridge Top........South winds 15 to 25 mph with gusts to 35 mph.
* Mixing Height......1600-2100 ft agl increasing to 6200-7200 ft
agl in the afternoon.
* Transport Winds....Southwest 10 to 15 mph shifting to the south
15 to 25 mph in the afternoon.
* Ventilation........Good increasing to excellent in the afternoon.
.WEDNESDAY NIGHT...
* Sky/Weather........Clear.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Min Temperature....
* Valleys..........34-44.
* Mid Slope........37-47.
* Max Humidity.......
* Valleys..........50-60%.
* Mid Slope........33-43%.
* 20-Foot Winds......
* Valleys/Slope....Southwest winds 15 to 25 mph with gusts to 40
mph decreasing to 9 to 15 mph with gusts to 25
mph in the late evening and overnight.
* Ridge Top........Southwest winds 15 to 25 mph. Gusts to 45 mph
increasing to 50 mph in the morning.
* Mixing Height......3200-4200 ft agl decreasing to 600 ft agl
after midnight.
* Transport Winds....Southwest 15 to 25 mph decreasing to 10 to 15
mph after midnight.
* Ventilation........Excellent decreasing to marginal after
midnight.
.THURSDAY...
* Sky/Weather........Sunny.
* Chance of Thunder..0%.
* Chc Wetting Rain...0%.
* Max Temperature....
* Valleys..........66-76.
* Mid Slope........63-73.
* Min Humidity.......
* Valleys..........8-18%.
* Mid Slope........10-20%.
* 20-Foot Winds......
* Valleys/Slope....Southwest winds 8 to 13 mph with gusts to 20 mph
in the morning becoming upslope 4 to 8 mph,
then becoming southwest 9 to 15 mph with gusts
to 30 mph late in the afternoon.
* Ridge Top........Southwest winds 20 to 30 mph. Gusts to 50 mph
decreasing to 35 mph in the afternoon.
* Mixing Height......600-1000 ft agl increasing to 5400-6400 ft agl
in the afternoon.
* Transport Winds....Southwest 10 to 15 mph increasing to 15 to 25
mph in the afternoon.
* Ventilation........Fair increasing to excellent in the afternoon.
.Extended...
.THURSDAY NIGHT...Clear. Lows 32-42. Southwest winds 9 to 14 mph in
the evening becoming downslope 2 to 5 mph.
.FRIDAY...Clear. Highs 67-77. Lows 32-42. Slope winds.
.SATURDAY...Clear. Highs 70-80. Lows 35-45. Slope winds.
.SUNDAY...Partly cloudy. Highs 70-80. Lows 39-49. Slope winds.
.MONDAY THROUGH TUESDAY...Clear. Highs 69-79. Lows 38-48.
$$
.8 to 14 day outlook for (Wed Sep 23 through Tue Sep 29)
Above normal temperatures and precipitation.
=
$$
http://weather.gov/reno