Zone Forecast Product
Issued by NWS Sacramento, CA

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331
FPUS56 KSTO 292323
ZFPSTO

Interior Northern California Zone Forecasts for California
National Weather Service Sacramento CA
423 PM PDT Mon Sep 29 2025

Spot temperatures and probabilities of measurable precipitation
are for tonight, Tuesday, Tuesday night, and Wednesday.


CAZ013-301100-
Shasta Lake Area / Northern Shasta County-
Including the city of Shasta Dam
423 PM PDT Mon Sep 29 2025

.TONIGHT...Mostly cloudy. Colder. Heavy rain showers likely and a
chance of thunderstorms early in the evening, then a slight
chance of thunderstorms in the late evening and early morning. A
chance of rain showers in the late evening and overnight. Lows
39 to 54 higher elevations...48 to 57 lower elevations.
Prevailing southwest winds up to 10 mph.
.TUESDAY...Mostly cloudy with a chance of rain showers. Highs
49 to 64 higher elevations...61 to 69 lower elevations.
Prevailing south winds up to 10 mph with gusts to around 25 mph.
.TUESDAY NIGHT...Cloudy. A chance of rain showers in the evening,
then rain showers likely after midnight. Lows 38 to 53 higher
elevations...47 to 57 lower elevations. Prevailing south winds up
to 10 mph with gusts to around 25 mph.
.WEDNESDAY...Mostly cloudy. A chance of rain showers in the
morning, then a slight chance of rain showers in the afternoon.
Highs 48 to 63 higher elevations...58 to 65 lower elevations.
Prevailing south winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly cloudy with a chance of rain showers.
Lows 39 to 54 higher elevations...47 to 56 lower elevations.
Light winds.
.THURSDAY...Mostly cloudy. Warmer. Highs 58 to 73.
.THURSDAY NIGHT...Mostly clear. Colder. Lows 37 to 52.
.FRIDAY THROUGH SATURDAY NIGHT...Clear. Highs 66 to 81. Lows
39 to 54.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs 63 to 78. Lows
41 to 56.
.MONDAY...Sunny. Highs 63 to 78.

&&
                           TEMPERATURE    /    PRECIPITATION
SHASTA DAM             55   67   55   63  /  80   60   80   50


$$
=

CAZ014-301100-
Burney Basin / Eastern Shasta County-
Including the city of Burney
423 PM PDT Mon Sep 29 2025

.TONIGHT...Mostly cloudy. Colder. A chance of rain showers early
in the evening. A slight chance of thunderstorms in the evening.
Rain showers likely late in the evening, then a chance of rain
showers after midnight. Lows 38 to 49. Prevailing southwest winds
up to 10 mph shifting to the southeast after midnight. Gusts up
to 25 mph.
.TUESDAY...Mostly cloudy. A chance of rain showers in the
morning, then a slight chance of rain showers in the afternoon.
Highs 54 to 65. Prevailing southwest winds up to 15 mph with
gusts to around 30 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of rain showers.
Lows 37 to 50. Prevailing southwest winds up to 15 mph with gusts
to around 30 mph.
.WEDNESDAY...Mostly cloudy. A chance of rain showers in the
morning, then a slight chance of rain showers in the afternoon.
Highs 53 to 63. Prevailing southwest winds up to 10 mph with
gusts to around 25 mph.
.WEDNESDAY NIGHT...Mostly cloudy with a chance of rain showers.
Lows 34 to 47. Prevailing west winds up to 10 mph in the evening
becoming light.
.THURSDAY...Mostly cloudy. Highs 56 to 67.
.THURSDAY NIGHT...Mostly clear. Colder. Lows 29 to 42.
.FRIDAY THROUGH SATURDAY NIGHT...Clear. Highs 62 to 75. Lows
29 to 44.
.SUNDAY THROUGH MONDAY...Mostly clear. Highs 60 to 71. Lows 29 to
44.

&&
                           TEMPERATURE    /    PRECIPITATION
BURNEY                 41   61   42   60  /  70   40   50   40


$$
=

CAZ015-301100-
Northern Sacramento Valley-
Including the cities of Redding and Red Bluff
423 PM PDT Mon Sep 29 2025

.TONIGHT...Mostly cloudy. A chance of thunderstorms early in the
evening. A chance of rain showers through the night. A slight
chance of thunderstorms in the late evening and early morning.
Lows 53 to 59. South winds up to 10 mph. Gusts up to 25 mph in
the evening.
.TUESDAY...Mostly cloudy. A chance of rain showers in the
morning, then a slight chance of rain showers in the afternoon.
Highs 67 to 75. South winds 10 to 15 mph with gusts to around
30 mph.
.TUESDAY NIGHT...Mostly cloudy. A chance of rain showers in the
evening, then rain showers likely after midnight. Lows 53 to 59.
South winds up to 15 mph with gusts to around 25 mph.
.WEDNESDAY...Mostly cloudy. A chance of rain showers in the
morning, then a slight chance of rain showers in the afternoon.
Highs 63 to 69. South winds up to 10 mph with gusts to around
20 mph.
.WEDNESDAY NIGHT...Mostly cloudy. A chance of rain showers in the
evening, then a slight chance of rain showers after midnight.
Lows 51 to 57. Southeast winds up to 10 mph with gusts to around
20 mph in the evening becoming light.
.THURSDAY...Partly cloudy. Highs around 73.
.THURSDAY NIGHT...Mostly clear. Lows 48 to 56.
.FRIDAY THROUGH SUNDAY...Clear. Highs around 82. Lows 49 to 59.
.SUNDAY NIGHT...Mostly clear. Lows 53 to 59.
.MONDAY...Sunny. Highs around 79.

&&
                           TEMPERATURE    /    PRECIPITATION
REDDING                54   70   54   65  /  80   50   70   40
RED BLUFF              57   73   56   67  /  60   40   70   40


$$
=

CAZ016-301100-
Central Sacramento Valley-
Including the cities of Chico, Oroville, and Marysville/Yuba City
423 PM PDT Mon Sep 29 2025

.TONIGHT...Mostly cloudy. A slight chance of thunderstorms in the
evening. A chance of rain showers until early morning, then a
slight chance of rain showers late in the night. Lows 53 to 61.
South winds up to 10 mph with gusts to around 20 mph.
.TUESDAY...Mostly cloudy with a slight chance of rain showers.
Highs around 73. South winds 10 to 15 mph with gusts to around
25 mph.
.TUESDAY NIGHT...Mostly cloudy. A slight chance of rain showers
in the evening, then a chance of rain showers after midnight.
Lows 55 to 61. South winds up to 10 mph. Gusts up to 25 mph in
the evening.
.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs
around 67. Southeast winds up to 10 mph with gusts to around
20 mph.
.WEDNESDAY NIGHT...Mostly cloudy. A chance of rain showers in the
evening, then a slight chance of rain showers after midnight.
Lows 52 to 58. Southeast winds up to 10 mph in the evening
becoming light.
.THURSDAY...Mostly cloudy. Highs around 72.
.THURSDAY NIGHT...Mostly clear. Lows 50 to 56.
.FRIDAY THROUGH SUNDAY NIGHT...Clear. Highs around 81. Lows 50 to
60.
.MONDAY...Mostly sunny. Highs around 77.

&&
                           TEMPERATURE    /    PRECIPITATION
CHICO                  61   73   59   67  /  60   30   40   40
OROVILLE               59   73   58   67  /  60   40   40   50
MARYSVILLE/YUBA CITY   59   75   59   68  /  50   30   30   60


$$
=

CAZ017-301100-
Southern Sacramento Valley-
Including the city of Sacramento
423 PM PDT Mon Sep 29 2025

.TONIGHT...Mostly cloudy. A chance of rain showers and a slight
chance of thunderstorms early in the evening, then a chance of
rain showers in the late evening and overnight. Lows around 59.
South winds up to 10 mph with gusts to around 20 mph.
.TUESDAY...Mostly cloudy. A slight chance of rain showers in the
morning. Highs 71 to 76. South winds up to 15 mph with gusts to
around 25 mph.
.TUESDAY NIGHT...Mostly cloudy. A slight chance of rain showers
after midnight. Lows around 59. Southwest winds up to 10 mph.
Gusts up to 20 mph in the evening.
.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs
65 to 71. South winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly cloudy with a slight chance of rain
showers. Lows 54 to 60. Light winds.
.THURSDAY...Mostly cloudy. Highs 71 to 77.
.THURSDAY NIGHT...Mostly clear. Lows 50 to 58.
.FRIDAY THROUGH SUNDAY NIGHT...Clear. Highs 77 to 85. Lows 51 to
61.
.MONDAY...Mostly sunny. Highs 75 to 81.

&&
                           TEMPERATURE    /    PRECIPITATION
SACRAMENTO             62   75   61   69  /  40   20   20   50
SAC EXEC AIRPORT       60   74   60   70  /  40   20   20   50


$$
=

CAZ018-301100-
Carquinez Strait and Delta-
Including the city of Fairfield/Suisun
423 PM PDT Mon Sep 29 2025

.TONIGHT...Mostly cloudy. A slight chance of rain showers early
in the evening, then a chance of rain showers late in the
evening. A slight chance of rain showers after midnight. Lows
around 61. Southwest winds up to 10 mph with gusts to around
20 mph.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Highs 71 to 77. Southwest winds 10 to 15 mph with gusts
to around 25 mph.
.TUESDAY NIGHT...Mostly cloudy. A chance of rain showers after
midnight. Lows around 60. West winds up to 15 mph.
.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs
66 to 72. South winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly cloudy with a slight chance of rain
showers. Lows 55 to 61. West winds up to 10 mph.
.THURSDAY...Partly cloudy. Highs 71 to 77.
.THURSDAY NIGHT...Mostly clear. Lows around 55.
.FRIDAY THROUGH SUNDAY NIGHT...Clear. Highs 78 to 84. Lows around
56.
.MONDAY...Mostly sunny. Highs 73 to 79.

&&
                           TEMPERATURE    /    PRECIPITATION
FAIRFIELD/SUISUN       60   76   60   72  /  30   20   30   60


$$
=

CAZ019-301100-
Northern San Joaquin Valley-
Including the cities of Stockton and Modesto
423 PM PDT Mon Sep 29 2025

.TONIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms early in the evening, then a slight chance of rain
showers in the late evening and overnight. Lows 56 to 62.
Northwest winds up to 10 mph.
.TUESDAY...Partly cloudy in the morning then clearing. Highs
72 to 80. Southwest winds up to 10 mph with gusts to around
20 mph.
.TUESDAY NIGHT...Mostly clear. Lows 56 to 62. Northwest winds up
to 10 mph.
.WEDNESDAY...Partly cloudy with a slight chance of rain showers
in the morning, then mostly cloudy with a chance of rain showers
in the afternoon. Highs 70 to 78. Northwest winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly cloudy with a slight chance of rain
showers. Lows 57 to 63. Northwest winds up to 10 mph.
.THURSDAY...Mostly cloudy. Highs 72 to 78.
.THURSDAY NIGHT...Mostly clear. Lows 52 to 58.
.FRIDAY THROUGH SUNDAY NIGHT...Clear. Highs 75 to 85. Lows 52 to
60.
.MONDAY...Mostly sunny. Highs 72 to 80.

&&
                           TEMPERATURE    /    PRECIPITATION
STOCKTON               59   79   59   76  /  20   10   10   30
MODESTO                61   79   61   77  /  20   10    0   20


$$
=

CAZ063-301100-
Mountains Southwestern Shasta County to Western Colusa County-
Including the city of Alder Springs
423 PM PDT Mon Sep 29 2025

.TONIGHT...Mostly cloudy in the evening then becoming partly
cloudy. Colder. A chance of rain showers and a slight chance of
thunderstorms early in the evening, then a slight chance of rain
showers late in the evening. A chance of rain showers after
midnight, then a slight chance of rain showers late in the night.
Lows 39 to 53 higher elevations...51 to 57 lower elevations.
Prevailing southwest winds up to 10 mph with gusts to around
25 mph.
.TUESDAY...Partly cloudy with a slight chance of rain showers in
the morning, then mostly cloudy with a chance of rain showers in
the afternoon. Highs 49 to 64 higher elevations...64 to 72 lower
elevations. Prevailing south winds up to 15 mph.
.TUESDAY NIGHT...Rain showers. Lows 41 to 53 higher elevations...
52 to 58 lower elevations. Prevailing south winds up to 15 mph.
.WEDNESDAY...Rain showers likely. Highs 47 to 62 higher
elevations...60 to 68 lower elevations. Prevailing southeast
winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly cloudy. A chance of rain showers in the
evening, then a slight chance of rain showers after midnight.
Lows 41 to 53 higher elevations...51 to 57 lower elevations.
Prevailing south winds up to 10 mph in the evening becoming
light.
.THURSDAY...Partly cloudy with a slight chance of rain showers.
Warmer. Highs 55 to 70.
.THURSDAY NIGHT...Mostly clear. Lows 43 to 58.
.FRIDAY THROUGH MONDAY...Clear. Highs 63 to 78. Lows 46 to 61.

&&
                           TEMPERATURE    /    PRECIPITATION
ALDER SPRINGS          46   56   47   55  /  70   40   80   80


$$
=

CAZ066-301100-
Northeast Foothills/Sacramento Valley-
Including the city of Paradise
423 PM PDT Mon Sep 29 2025

.TONIGHT...Mostly cloudy. A chance of showers and thunderstorms
early in the evening, then rain showers likely late in the
evening. A slight chance of thunderstorms in the late evening and
early morning. A chance of rain showers after midnight. Lows
49 to 61. Prevailing south winds up to 10 mph with gusts to
around 25 mph.
.TUESDAY...Mostly cloudy. A chance of rain showers in the
morning, then a slight chance of rain showers in the afternoon.
Highs 57 to 71. Prevailing south winds up to 15 mph with gusts to
around 30 mph.
.TUESDAY NIGHT...Cloudy. A chance of rain showers in the evening,
then rain showers likely after midnight. Lows 48 to 60.
Prevailing south winds up to 10 mph with gusts to around 30 mph.
.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs
56 to 66. Prevailing south winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly cloudy with a chance of rain showers.
Lows 48 to 59. Prevailing south winds up to 10 mph in the evening
becoming light.
.THURSDAY...Mostly cloudy. Warmer. Highs 61 to 73.
.THURSDAY NIGHT...Mostly clear. Lows 46 to 58.
.FRIDAY THROUGH SATURDAY NIGHT...Clear. Highs 69 to 83. Lows
47 to 62.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs 68 to 80. Lows
50 to 62.
.MONDAY...Sunny. Highs 67 to 79.

&&
                           TEMPERATURE    /    PRECIPITATION
PARADISE               57   63   56   60  /  60   40   50   50


$$
=

CAZ067-301100-
Motherlode-
Including the cities of Grass Valley and Jackson
423 PM PDT Mon Sep 29 2025

.TONIGHT...Mostly cloudy. A chance of rain showers and a slight
chance of thunderstorms in the evening, then a chance of rain
showers after midnight. Lows 50 to 60. Light winds.
.TUESDAY...Mostly cloudy. A slight chance of rain showers in the
morning, then a slight chance of showers and thunderstorms in the
afternoon. Highs 59 to 71 higher elevations...65 to 75 lower
elevations. Prevailing south winds up to 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a slight chance of rain
showers. Lows 51 to 61. Light winds.
.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs
60 to 75. Light winds.
.WEDNESDAY NIGHT...Mostly cloudy. A chance of rain showers in the
evening, then a slight chance of rain showers after midnight.
Lows 50 to 62. Light winds.
.THURSDAY...Mostly cloudy with a slight chance of rain showers.
Highs 64 to 74.
.THURSDAY NIGHT...Mostly clear. Lows 47 to 57.
.FRIDAY THROUGH SATURDAY NIGHT...Clear. Highs 69 to 82. Lows
47 to 59.
.SUNDAY THROUGH MONDAY...Mostly clear. Highs 67 to 80. Lows 50 to
59.

&&
                           TEMPERATURE    /    PRECIPITATION
GRASS VALLEY           51   63   52   61  /  60   40   30   50
JACKSON                56   71   57   69  /  40   20   10   30


$$
=

CAZ068-301100-
Western Plumas County/Lassen Park-
Including the cities of Chester and Quincy
423 PM PDT Mon Sep 29 2025

.TONIGHT...Mostly cloudy. Colder. A chance of rain showers early
in the evening. A slight chance of thunderstorms until early
morning. Rain showers likely late in the evening, then a chance
of rain showers after midnight. Lows 37 to 52. Prevailing south
winds up to 10 mph with gusts to around 25 mph.
.TUESDAY...Mostly cloudy. A chance of rain showers in the
morning, then a slight chance of rain showers in the afternoon.
Highs 42 to 57 higher elevations...49 to 62 lower elevations.
Prevailing south winds 5 to 15 mph with gusts to around 30 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of rain showers.
Lows 36 to 51. Prevailing south winds up to 15 mph with gusts to
around 30 mph.
.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs
42 to 57 higher elevations...47 to 62 lower elevations.
Prevailing south winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly cloudy with a chance of rain showers.
Lows 36 to 51. Prevailing south winds up to 10 mph.
.THURSDAY...Mostly cloudy with a slight chance of rain showers.
Warmer. Highs 50 to 65.
.THURSDAY NIGHT...Mostly clear. Lows 35 to 50.
.FRIDAY THROUGH SATURDAY NIGHT...Clear. Highs 59 to 74. Lows
37 to 52.
.SUNDAY THROUGH MONDAY...Mostly clear. Highs 56 to 71. Lows 38 to
53.

&&
                           TEMPERATURE    /    PRECIPITATION
QUINCY                 42   64   43   63  /  60   40   40   50
CHESTER                39   60   38   60  /  70   40   50   50


$$
=

CAZ069-301100-
West Slope Northern Sierra Nevada-
Including the city of Blue Canyon
423 PM PDT Mon Sep 29 2025

.TONIGHT...Mostly cloudy. Colder. A chance of thunderstorms early
in the evening. A chance of rain showers through the night. A
slight chance of thunderstorms late in the evening. Lows 35 to
50 higher elevations...46 to 56 lower elevations. Prevailing
south winds up to 10 mph with gusts to around 25 mph.
.TUESDAY...Mostly cloudy. A chance of rain showers in the
morning, then a chance of rain showers and a slight chance of
thunderstorms in the afternoon. Highs 44 to 59 higher
elevations...55 to 69 lower elevations. Prevailing south winds up
to 10 mph with gusts to around 25 mph.
.TUESDAY NIGHT...Mostly cloudy. A slight chance of rain showers
in the evening, then a chance of rain showers after midnight.
Lows 34 to 49 higher elevations...45 to 57 lower elevations.
Prevailing south winds up to 10 mph with gusts to around 25 mph.
.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs
46 to 61 higher elevations...55 to 70 lower elevations.
Prevailing south winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly cloudy with a chance of rain showers.
Lows 36 to 51 higher elevations...46 to 58 lower elevations.
Prevailing south winds up to 10 mph.
.THURSDAY...Mostly cloudy with a slight chance of rain showers.
Highs 50 to 65.
.THURSDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Colder. Lows 35 to 50.
.FRIDAY...Partly cloudy with a slight chance of rain showers.
Warmer. Highs 55 to 70.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Clear. Lows 38 to 53.
Highs 57 to 72.
.SUNDAY THROUGH MONDAY...Mostly clear. Highs 54 to 69. Lows 37 to
52.

&&
                           TEMPERATURE    /    PRECIPITATION
BLUE CANYON            49   53   49   53  /  60   40   30   40


$$
=