Zone Forecast Product
Issued by NWS Sacramento, CA

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FPUS56 KSTO 171723
ZFPSTO

Interior Northern California Zone Forecasts for California
National Weather Service Sacramento CA
1022 AM PDT Sun Aug 17 2025

Spot temperatures and probabilities of measurable precipitation
are for today, tonight, and Monday.


CAZ013-172300-
Shasta Lake Area / Northern Shasta County-
Including the city of Shasta Dam
1022 AM PDT Sun Aug 17 2025

.TODAY...Mostly cloudy in the morning then clearing. Highs 70 to
85 higher elevations...81 to 89 lower elevations. Prevailing
southwest winds up to 10 mph.
.TONIGHT...Mostly clear. Cooler. Lows 45 to 60 higher
elevations...54 to 61 lower elevations. Prevailing southwest
winds up to 10 mph.
.MONDAY...Sunny. Highs 70 to 85 higher elevations...81 to
89 lower elevations. Light winds becoming south up to 10 mph in
the afternoon.
.MONDAY NIGHT...Clear. Lows 46 to 61 higher elevations...55 to
63 lower elevations. Prevailing south winds up to 10 mph in the
evening becoming light.
.TUESDAY...Sunny, warmer. Highs 75 to 90 higher elevations...
86 to 94 lower elevations. Light winds becoming south up to
10 mph in the afternoon.
.TUESDAY NIGHT...Clear. Lows 50 to 65.
.WEDNESDAY...Sunny, warmer. Highs 82 to 97.
.WEDNESDAY NIGHT THROUGH SATURDAY...Clear. Lows 56 to 71. Highs
85 to 100.

&&
                        TEMPERATURE  /  PRECIPITATION
SHASTA DAM             87   60   87  /  10   10    0


$$
=

CAZ014-172300-
Burney Basin / Eastern Shasta County-
Including the city of Burney
1022 AM PDT Sun Aug 17 2025

.TODAY...Mostly sunny. Highs 71 to 82. Prevailing west winds up
to 10 mph.
.TONIGHT...Mostly clear. Colder. Lows 39 to 54. Prevailing
southwest winds up to 10 mph in the evening becoming light.
.MONDAY...Sunny. Highs 73 to 83. Light winds becoming west up to
10 mph in the afternoon.
.MONDAY NIGHT...Clear. Lows 39 to 53. Prevailing west winds up to
10 mph with gusts to around 25 mph in the evening becoming light.
.TUESDAY...Sunny. Highs 76 to 87. Light winds becoming west up to
10 mph in the afternoon.
.TUESDAY NIGHT...Clear. Lows 41 to 55.
.WEDNESDAY...Sunny. Highs 80 to 91.
.WEDNESDAY NIGHT THROUGH SATURDAY...Clear. Lows 46 to 61. Highs
82 to 97.

&&
                        TEMPERATURE  /  PRECIPITATION
BURNEY                 79   45   79  /  10    0    0


$$
=

CAZ015-172300-
Northern Sacramento Valley-
Including the cities of Redding and Red Bluff
1022 AM PDT Sun Aug 17 2025

.TODAY...Partly cloudy in the morning then clearing. Highs around
86. South winds up to 15 mph. Gusts up to 25 mph in the
afternoon.
.TONIGHT...Mostly clear. Cooler. Lows 55 to 61. South winds up to
15 mph.
.MONDAY...Sunny. Highs 83 to 89. Southeast winds up to 10 mph.
.MONDAY NIGHT...Clear. Lows 57 to 63. South winds up to 10 mph in
the evening becoming light.
.TUESDAY...Sunny. Highs 88 to 94. Light winds becoming south up
to 10 mph in the afternoon.
.TUESDAY NIGHT...Clear. Lows 59 to 65.
.WEDNESDAY...Sunny. Highs 94 to 100.
.WEDNESDAY NIGHT THROUGH SATURDAY...Clear. Lows 63 to 73. Highs
95 to 105.

&&
                        TEMPERATURE  /  PRECIPITATION
REDDING                89   58   89  /   0    0    0
RED BLUFF              88   58   88  /   0    0    0


$$
=

CAZ016-172300-
Central Sacramento Valley-
Including the cities of Chico, Oroville, and Marysville/Yuba City
1022 AM PDT Sun Aug 17 2025

.TODAY...Mostly sunny. Highs around 84. Southeast winds up to
15 mph.
.TONIGHT...Clear. Lows around 56. Southeast winds up to 15 mph.
.MONDAY...Mostly sunny. Highs around 84. Southeast winds up to
10 mph.
.MONDAY NIGHT...Clear. Lows 54 to 60. Southeast winds up to
10 mph.
.TUESDAY...Sunny. Highs around 88. Light winds becoming south up
to 10 mph in the afternoon.
.TUESDAY NIGHT...Clear. Lows 55 to 63.
.WEDNESDAY...Sunny. Highs around 94.
.WEDNESDAY NIGHT THROUGH SATURDAY...Clear. Lows 61 to 71. Highs
94 to 100.

&&
                        TEMPERATURE  /  PRECIPITATION
CHICO                  86   59   86  /   0    0    0
OROVILLE               86   57   87  /   0    0    0
MARYSVILLE/YUBA CITY   85   56   86  /   0    0    0


$$
=

CAZ017-172300-
Southern Sacramento Valley-
Including the city of Sacramento
1022 AM PDT Sun Aug 17 2025

.TODAY...Mostly sunny. Highs 79 to 87. South winds 10 to 15 mph
with gusts to around 25 mph.
.TONIGHT...Clear. Lows 52 to 58. South winds up to 15 mph with
gusts to around 25 mph.
.MONDAY...Mostly sunny. Highs 82 to 88. South winds up to 10 mph.
.MONDAY NIGHT...Clear. Lows 52 to 60. South winds up to 10 mph
with gusts to around 20 mph.
.TUESDAY...Sunny. Highs 85 to 91. Southwest winds up to 10 mph.
.TUESDAY NIGHT...Clear. Lows 54 to 62.
.WEDNESDAY...Sunny. Highs 91 to 97.
.WEDNESDAY NIGHT THROUGH SATURDAY...Clear. Lows 59 to 69. Highs
92 to 102.

&&
                        TEMPERATURE  /  PRECIPITATION
SACRAMENTO             82   57   86  /   0    0    0
SAC EXEC AIRPORT       83   56   85  /   0    0    0


$$
=

CAZ018-172300-
Carquinez Strait and Delta-
Including the city of Fairfield/Suisun
1022 AM PDT Sun Aug 17 2025

.TODAY...Mostly sunny. Near the bay, mostly cloudy in the morning
then clearing. Highs 75 to 81. Southwest winds 10 to 20 mph with
gusts to around 30 mph.
.TONIGHT...Clear. Lows around 56. Southwest winds 10 to 15 mph
with gusts to around 30 mph.
.MONDAY...Sunny. Highs 78 to 84. Southwest winds 10 to 15 mph
with gusts to around 25 mph.
.MONDAY NIGHT...Clear. Lows around 55. Southwest winds 10 to
15 mph with gusts to around 25 mph.
.TUESDAY...Sunny. Highs 80 to 86. West winds 10 to 15 mph.
.TUESDAY NIGHT...Clear. Lows around 56.
.WEDNESDAY...Sunny. Highs 86 to 92.
.WEDNESDAY NIGHT THROUGH SATURDAY...Clear. Lows 57 to 65. Highs
89 to 95.

&&
                        TEMPERATURE  /  PRECIPITATION
FAIRFIELD/SUISUN       81   56   84  /   0    0    0


$$
=

CAZ019-172300-
Northern San Joaquin Valley-
Including the cities of Stockton and Modesto
1022 AM PDT Sun Aug 17 2025

.TODAY...Sunny. Highs 79 to 87. West winds up to 10 mph with
gusts to around 20 mph.
.TONIGHT...Clear. Lows 53 to 59. Northwest winds up to 15 mph.
Gusts up to 25 mph in the evening.
.MONDAY...Sunny. Highs 80 to 88. Northwest winds up to 10 mph
with gusts to around 20 mph.
.MONDAY NIGHT...Clear. Lows 53 to 61. Northwest winds up to
15 mph.
.TUESDAY...Sunny. Highs 84 to 90. Northwest winds up to 10 mph
with gusts to around 20 mph.
.TUESDAY NIGHT...Clear. Lows 54 to 62.
.WEDNESDAY...Sunny. Highs 89 to 95.
.WEDNESDAY NIGHT THROUGH SATURDAY...Clear. Lows 61 to 71. Highs
91 to 101.

&&
                        TEMPERATURE  /  PRECIPITATION
STOCKTON               86   56   87  /   0    0    0
MODESTO                86   58   87  /   0    0    0


$$
=

CAZ063-172300-
Mountains Southwestern Shasta County to Western Colusa County-
Including the city of Alder Springs
1022 AM PDT Sun Aug 17 2025

.TODAY...Partly cloudy in the morning then clearing. Highs 64 to
79 higher elevations...81 to 86 lower elevations. Light winds
becoming southeast up to 10 mph in the afternoon.
.TONIGHT...Mostly clear. Cooler. Lows 48 to 58 higher
elevations...55 to 63 lower elevations. Prevailing southwest
winds up to 10 mph shifting to the west after midnight.
.MONDAY...Sunny. Highs 65 to 80 higher elevations...81 to
86 lower elevations. Light winds becoming east up to 10 mph in
the afternoon.
.MONDAY NIGHT...Clear. Lows 50 to 62 higher elevations...59 to
67 lower elevations. Prevailing south winds up to 10 mph shifting
to the west after midnight.
.TUESDAY...Sunny, warmer. Highs 70 to 85 higher elevations...
86 to 91 lower elevations. Light winds becoming east up to 10 mph
in the afternoon.
.TUESDAY NIGHT...Clear. Lows 55 to 69.
.WEDNESDAY...Sunny, warmer. Highs 78 to 93.
.WEDNESDAY NIGHT THROUGH SATURDAY...Clear. Lows 62 to 77. Highs
81 to 96.

&&
                        TEMPERATURE  /  PRECIPITATION
ALDER SPRINGS          71   52   72  /  10   10    0


$$
=

CAZ066-172300-
Northeast Foothills/Sacramento Valley-
Including the city of Paradise
1022 AM PDT Sun Aug 17 2025

.TODAY...Mostly sunny. Highs 75 to 87. Prevailing southwest winds
up to 10 mph with gusts to around 25 mph.
.TONIGHT...Clear, cooler. Lows 53 to 61. Prevailing southeast
winds up to 10 mph with gusts to around 25 mph.
.MONDAY...Sunny. Highs 75 to 87. Light winds becoming southwest
up to 10 mph in the afternoon.
.MONDAY NIGHT...Clear. Lows 56 to 66. Prevailing south winds up
to 10 mph in the evening becoming light.
.TUESDAY...Sunny. Highs 79 to 91. Light winds becoming southwest
up to 10 mph in the afternoon.
.TUESDAY NIGHT...Clear. Lows 58 to 68.
.WEDNESDAY...Sunny, warmer. Highs 85 to 97.
.WEDNESDAY NIGHT THROUGH SATURDAY...Clear. Lows 63 to 77. Highs
87 to 102.

&&
                        TEMPERATURE  /  PRECIPITATION
PARADISE               79   59   79  /   0    0    0


$$
=

CAZ067-172300-
Motherlode-
Including the cities of Grass Valley and Jackson
1022 AM PDT Sun Aug 17 2025

.TODAY...Sunny. Highs 77 to 85. Prevailing south winds up to
10 mph.
.TONIGHT...Clear. Lows 52 to 60. Prevailing southwest winds up to
10 mph in the evening becoming light.
.MONDAY...Sunny. Highs 78 to 86. Light winds becoming southwest
up to 10 mph in the afternoon.
.MONDAY NIGHT...Clear. Lows 54 to 64. Prevailing west winds up to
10 mph in the evening becoming light.
.TUESDAY...Sunny. Highs 82 to 90. Light winds becoming west up to
10 mph in the afternoon.
.TUESDAY NIGHT...Clear. Lows 56 to 66.
.WEDNESDAY...Sunny. Highs 85 to 95.
.WEDNESDAY NIGHT THROUGH SATURDAY...Clear. Lows 62 to 77. Highs
86 to 101.

&&
                        TEMPERATURE  /  PRECIPITATION
GRASS VALLEY           78   55   80  /   0    0    0
JACKSON                81   54   82  /   0    0    0


$$
=

CAZ068-172300-
Western Plumas County/Lassen Park-
Including the cities of Chester and Quincy
1022 AM PDT Sun Aug 17 2025

.TODAY...Mostly sunny. Highs 62 to 77 higher elevations...67 to
82 lower elevations. Prevailing south winds up to 10 mph.
.TONIGHT...Clear, colder. Lows 42 to 57. Prevailing south winds
up to 10 mph.
.MONDAY...Sunny. Highs 62 to 77 higher elevations...68 to
83 lower elevations. Light winds becoming southwest up to 10 mph
in the afternoon.
.MONDAY NIGHT...Clear. Lows 45 to 60. Prevailing southwest winds
up to 10 mph in the evening becoming light.
.TUESDAY...Sunny, warmer. Highs 66 to 81 higher elevations...
72 to 87 lower elevations. Light winds becoming southwest up to
10 mph in the afternoon.
.TUESDAY NIGHT...Clear. Lows 46 to 61.
.WEDNESDAY...Sunny, warmer. Highs 74 to 89.
.WEDNESDAY NIGHT THROUGH SATURDAY...Clear. Lows 53 to 68. Highs
77 to 92.

&&
                        TEMPERATURE  /  PRECIPITATION
QUINCY                 85   44   86  /  10    0    0
CHESTER                81   41   81  /  10    0    0


$$
=

CAZ069-172300-
West Slope Northern Sierra Nevada-
Including the city of Blue Canyon
1022 AM PDT Sun Aug 17 2025

.TODAY...Sunny. Highs 61 to 76 higher elevations...73 to 83 lower
elevations. Prevailing south winds up to 10 mph.
.TONIGHT...Clear. Lows 41 to 56 higher elevations...49 to
63 lower elevations. Prevailing southwest winds up to 10 mph in
the evening becoming light.
.MONDAY...Sunny. Highs 64 to 79 higher elevations...73 to
85 lower elevations. Prevailing southeast winds up to 10 mph
shifting to the southwest in the afternoon.
.MONDAY NIGHT...Clear. Lows 43 to 58 higher elevations...51 to
65 lower elevations. Prevailing southwest winds up to 10 mph in
the evening becoming light.
.TUESDAY...Sunny, warmer. Highs 66 to 81 higher elevations...
77 to 89 lower elevations. Prevailing east winds up to 10 mph
shifting to the southwest in the afternoon.
.TUESDAY NIGHT...Clear. Lows 47 to 62.
.WEDNESDAY...Sunny, warmer. Highs 73 to 88.
.WEDNESDAY NIGHT THROUGH FRIDAY...Clear. Lows 54 to 69. Highs
77 to 92.
.FRIDAY NIGHT...Mostly clear. Lows 57 to 72.
.SATURDAY...Sunny. Highs 78 to 93.

&&
                        TEMPERATURE  /  PRECIPITATION
BLUE CANYON            71   57   72  /   0    0    0


$$
=