395
FPUS56 KSTO 022323
ZFPSTO

Interior Northern California Zone Forecasts for California
National Weather Service Sacramento CA
423 PM PDT Tue Sep 2 2025

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


CAZ013-031100-
Shasta Lake Area / Northern Shasta County-
Including the city of Shasta Dam
423 PM PDT Tue Sep 2 2025

.TONIGHT...Mostly cloudy in the evening then becoming partly
cloudy. At higher elevations, a slight chance of rain showers
early in the evening. A slight chance of showers and
thunderstorms after midnight. At lower elevations, a slight
chance of rain showers after midnight. Lows 58 to 73. Light
winds.
.WEDNESDAY...Mostly sunny. Areas of smoke in the afternoon. Highs
84 to 99 higher elevations...94 to 102 lower elevations.
Prevailing northeast winds up to 10 mph shifting to the south in
the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 57 to 72 higher
elevations...64 to 76 lower elevations. Light winds.
.THURSDAY...Mostly sunny. Highs 82 to 97 higher elevations...
92 to 100 lower elevations. Light winds becoming south up to
10 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Cooler. Lows 52 to 67 higher
elevations...60 to 69 lower elevations. Prevailing south winds up
to 10 mph in the evening becoming light.
.FRIDAY...Mostly sunny. Highs 77 to 92.
.FRIDAY NIGHT...Mostly clear. Cooler. Lows 50 to 65.
.SATURDAY...Sunny. Highs 72 to 87.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Lows 49 to
64. Highs 72 to 87.
.MONDAY...Partly cloudy with a slight chance of rain showers.
Highs 69 to 84.
.MONDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Lows 47 to 62.
.TUESDAY...Partly cloudy with a chance of rain showers. Highs
68 to 83.

&&
                           TEMPERATURE    /    PRECIPITATION
SHASTA DAM             73   99   73   98  /  10    0    0    0


$$
=

CAZ014-031100-
Burney Basin / Eastern Shasta County-
Including the city of Burney
423 PM PDT Tue Sep 2 2025

.TONIGHT...Mostly cloudy. A chance of rain showers and a slight
chance of thunderstorms early in the evening, then a slight
chance of showers and thunderstorms in the late evening and
overnight. Lows 49 to 64. Prevailing south winds up to 10 mph in
the evening becoming light.
.WEDNESDAY...Mostly sunny. Areas of smoke in the afternoon. Highs
83 to 96. Light winds becoming southwest up to 10 mph in the
afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 50 to 63. Light winds.
.THURSDAY...Mostly sunny. Highs 79 to 90 higher elevations...
88 to 94 lower elevations. Light winds becoming west up to 10 mph
in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows 47 to 61. Prevailing west
winds up to 10 mph in the evening becoming light.
.FRIDAY...Mostly sunny. Highs 77 to 89.
.FRIDAY NIGHT...Mostly clear. Colder. Lows 42 to 56.
.SATURDAY THROUGH SUNDAY NIGHT...Mostly clear. Highs 70 to 82.
Lows 41 to 56.
.MONDAY AND MONDAY NIGHT...Mostly clear. A slight chance of rain
showers. Highs 68 to 79. Lows 39 to 54.
.TUESDAY...Partly cloudy with a slight chance of rain showers.
Highs 66 to 78.

&&
                           TEMPERATURE    /    PRECIPITATION
BURNEY                 53   92   56   90  /  30   10    0    0


$$
=

CAZ015-031100-
Northern Sacramento Valley-
Including the cities of Redding and Red Bluff
423 PM PDT Tue Sep 2 2025

.TONIGHT...Mostly clear. Lows 66 to 72. Southeast winds up to
10 mph.
.WEDNESDAY...Mostly sunny. Highs 95 to 101. Light winds becoming
south up to 10 mph with gusts to around 20 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 66 to 74. South winds up to
10 mph in the evening becoming light.
.THURSDAY...Mostly sunny. Highs 94 to 100. Light winds becoming
south up to 10 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Cooler. Lows 60 to 68. Southeast
winds up to 10 mph. Gusts up to 20 mph in the evening.
.FRIDAY...Mostly sunny. Highs 86 to 92.
.FRIDAY NIGHT...Mostly clear. Lows 58 to 64.
.SATURDAY...Sunny. Highs around 86.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Lows 58 to
65. Highs around 86.
.MONDAY...Partly cloudy with a slight chance of rain showers.
Highs around 85.
.MONDAY NIGHT AND TUESDAY...Partly cloudy with a slight chance of
rain showers. Lows 57 to 63. Highs around 85.

&&
                           TEMPERATURE    /    PRECIPITATION
REDDING                67  100   68   99  /  10    0    0    0
RED BLUFF              68   99   68   98  /  10    0    0    0


$$
=

CAZ016-031100-
Central Sacramento Valley-
Including the cities of Chico, Oroville, and Marysville/Yuba City
423 PM PDT Tue Sep 2 2025

.TONIGHT...Mostly clear. Lows 61 to 69. Southeast winds up to
10 mph.
.WEDNESDAY...Mostly sunny. Highs around 95. Light winds becoming
south up to 10 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 62 to 70. Southeast winds
up to 10 mph.
.THURSDAY...Mostly sunny. Highs around 94. Southeast winds up to
10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 57 to 64. South winds up to
10 mph with gusts to around 20 mph.
.FRIDAY...Mostly sunny. Highs around 87.
.FRIDAY NIGHT...Mostly clear. Lows 56 to 62.
.SATURDAY...Mostly sunny. Highs around 84.
.SATURDAY NIGHT...Clear. Lows 56 to 62.
.SUNDAY THROUGH TUESDAY...Mostly clear. Highs around 84. Lows
56 to 62.

&&
                           TEMPERATURE    /    PRECIPITATION
CHICO                  70   97   70   96  /  10    0    0    0
OROVILLE               67   96   66   95  /  10    0    0    0
MARYSVILLE/YUBA CITY   63   96   64   95  /  10    0    0    0


$$
=

CAZ017-031100-
Southern Sacramento Valley-
Including the city of Sacramento
423 PM PDT Tue Sep 2 2025

.TONIGHT...Clear, cooler. Lows 59 to 66. South winds up to 10 mph
with gusts to around 20 mph.
.WEDNESDAY...Mostly sunny. Highs 90 to 98. Southwest winds up to
10 mph.
.WEDNESDAY NIGHT...Clear. Lows 59 to 69. Southwest winds up to
10 mph with gusts to around 20 mph.
.THURSDAY...Sunny. Highs 89 to 97. South winds up to 10 mph with
gusts to around 20 mph.
.THURSDAY NIGHT...Mostly clear. Lows 56 to 64. South winds around
10 mph with gusts to around 20 mph.
.FRIDAY...Mostly sunny. Highs 82 to 90.
.FRIDAY NIGHT...Mostly clear. Lows 55 to 63.
.SATURDAY...Mostly sunny. Highs 82 to 88.
.SATURDAY NIGHT...Clear. Lows 56 to 63.
.SUNDAY THROUGH TUESDAY...Mostly clear. Highs 82 to 89. Lows
56 to 63.

&&
                           TEMPERATURE    /    PRECIPITATION
SACRAMENTO             63   95   63   94  /  10    0    0    0
SAC EXEC AIRPORT       62   94   61   92  /  10    0    0    0


$$
=

CAZ018-031100-
Carquinez Strait and Delta-
Including the city of Fairfield/Suisun
423 PM PDT Tue Sep 2 2025

.TONIGHT...Clear. Lows 57 to 63. West winds 10 to 15 mph with
gusts to around 25 mph.
.WEDNESDAY...Sunny. Near the bay, mostly cloudy in the morning
then clearing. Mostly sunny. Highs 85 to 91. West winds 10 to
15 mph with gusts to around 25 mph.
.WEDNESDAY NIGHT...Clear. Lows 57 to 63. West winds 10 to 15 mph
with gusts to around 25 mph.
.THURSDAY...Sunny. Near the bay, mostly cloudy in the morning
then clearing. Highs 82 to 88. Southwest winds 10 to 15 mph with
gusts to around 25 mph.
.THURSDAY NIGHT...Mostly clear. Near the bay, clear in the
evening then becoming mostly cloudy. Lows around 60. Southwest
winds 10 to 15 mph with gusts to around 30 mph.
.FRIDAY...Mostly sunny. Highs 78 to 84.
.FRIDAY NIGHT...Clear. Lows around 59.
.SATURDAY...Mostly sunny. Highs 79 to 85.
.SATURDAY NIGHT...Clear. Lows around 60.
.SUNDAY...Mostly sunny. Highs 80 to 86.
.SUNDAY NIGHT...Clear. Lows around 59.
.MONDAY...Mostly sunny. Highs 79 to 85.
.MONDAY NIGHT...Clear. Lows around 59.
.TUESDAY...Mostly sunny. Highs 78 to 84.

&&
                           TEMPERATURE    /    PRECIPITATION
FAIRFIELD/SUISUN       59   92   59   89  /  10    0    0    0


$$
=

CAZ019-031100-
Northern San Joaquin Valley-
Including the cities of Stockton and Modesto
423 PM PDT Tue Sep 2 2025

.TONIGHT...Clear, cooler. Lows 60 to 68. Northwest winds up to
10 mph with gusts to around 20 mph.
.WEDNESDAY...Sunny. Highs 91 to 97. Northwest winds up to 10 mph.
.WEDNESDAY NIGHT...Clear. Lows 60 to 70. Northwest winds up to
10 mph.
.THURSDAY...Sunny. Highs 89 to 95. Northwest winds up to 10 mph.
.THURSDAY NIGHT...Clear. Lows 57 to 65. Northwest winds up to
10 mph with gusts to around 20 mph.
.FRIDAY...Sunny. Highs 83 to 89.
.FRIDAY NIGHT...Clear. Lows 56 to 64.
.SATURDAY THROUGH SUNDAY NIGHT...Clear. Highs 81 to 90. Lows
56 to 64.
.MONDAY...Mostly sunny. Highs 80 to 88.
.MONDAY NIGHT...Clear. Lows 56 to 62.
.TUESDAY...Mostly sunny. Highs 79 to 87.

&&
                           TEMPERATURE    /    PRECIPITATION
STOCKTON               62   96   62   95  /   0    0    0    0
MODESTO                66   96   67   96  /  10    0    0    0


$$
=

CAZ063-031100-
Mountains Southwestern Shasta County to Western Colusa County-
Including the city of Alder Springs
423 PM PDT Tue Sep 2 2025

.TONIGHT...Clear, cooler. Lows 60 to 72 higher elevations...68 to
76 lower elevations. Prevailing south winds up to 10 mph shifting
to the north after midnight.
.WEDNESDAY...Mostly sunny. Highs 76 to 91 higher elevations...
93 to 98 lower elevations. Prevailing northeast winds up to
10 mph shifting to the southeast in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 61 to 73 higher
elevations...69 to 77 lower elevations. Prevailing south winds up
to 10 mph shifting to the northwest after midnight.
.THURSDAY...Mostly sunny. Highs 76 to 91 higher elevations...
92 to 98 lower elevations. Light winds becoming southeast up to
10 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Cooler. Lows 55 to 67 higher
elevations...63 to 71 lower elevations. Prevailing south winds up
to 10 mph shifting to the west after midnight.
.FRIDAY...Mostly sunny. Highs 72 to 87.
.FRIDAY NIGHT...Mostly clear. Cooler. Lows 52 to 67.
.SATURDAY THROUGH SUNDAY NIGHT...Mostly clear. Highs 69 to 84.
Lows 52 to 67.
.MONDAY AND MONDAY NIGHT...Mostly clear. A slight chance of rain
showers. Highs 67 to 82. Lows 51 to 66.
.TUESDAY...Partly cloudy with a chance of rain showers. Highs
66 to 81.

&&
                           TEMPERATURE    /    PRECIPITATION
ALDER SPRINGS          65   83   66   83  /  10    0    0    0


$$
=

CAZ066-031100-
Northeast Foothills/Sacramento Valley-
Including the city of Paradise
423 PM PDT Tue Sep 2 2025

.TONIGHT...Mostly clear. A slight chance of rain showers in the
evening, then a slight chance of showers and thunderstorms after
midnight. Cooler. Lows 64 to 74. Prevailing east winds up to
10 mph.
.WEDNESDAY...Mostly sunny. Highs 85 to 99. Light winds becoming
southwest up to 10 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 65 to 77. Light winds.
.THURSDAY...Mostly sunny. Highs 85 to 97. Light winds becoming
southwest up to 10 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Cooler. Lows 61 to 71. Prevailing
south winds up to 10 mph in the evening becoming light.
.FRIDAY...Mostly sunny. Highs 79 to 91.
.FRIDAY NIGHT...Mostly clear. Lows 57 to 66.
.SATURDAY...Sunny. Highs 74 to 86.
.SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows 56 to 67.
Highs 73 to 87.
.MONDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Lows 54 to 65.
.TUESDAY...Partly cloudy with a slight chance of rain showers.
Highs 72 to 84.

&&
                           TEMPERATURE    /    PRECIPITATION
PARADISE               71   90   73   89  /  20    0    0    0


$$
=

CAZ067-031100-
Motherlode-
Including the cities of Grass Valley and Jackson
423 PM PDT Tue Sep 2 2025

.TONIGHT...Mostly clear. A slight chance of showers and
thunderstorms early in the evening. Areas of smoke early in the
evening. Cooler. Lows 63 to 73. Prevailing south winds up to
10 mph in the evening becoming light.
.WEDNESDAY...Sunny. Areas of smoke. Highs 88 to 96. Light winds
becoming west up to 10 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 64 to 74. Light winds.
.THURSDAY...Sunny. Highs 85 to 95. Light winds becoming southwest
up to 10 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Cooler. Lows 59 to 69. Prevailing
west winds up to 10 mph in the evening becoming light.
.FRIDAY...Sunny. Highs 81 to 89.
.FRIDAY NIGHT...Mostly clear. Lows 55 to 65.
.SATURDAY...Mostly sunny. Highs 76 to 86.
.SATURDAY NIGHT...Clear. Lows 55 to 63.
.SUNDAY THROUGH TUESDAY...Mostly clear. Highs 74 to 87. Lows
54 to 64.

&&
                           TEMPERATURE    /    PRECIPITATION
GRASS VALLEY           64   89   66   89  /  20    0    0    0
JACKSON                66   92   66   91  /  10    0    0    0


$$
=

CAZ068-031100-
Western Plumas County/Lassen Park-
Including the cities of Chester and Quincy
423 PM PDT Tue Sep 2 2025

.TONIGHT...Mostly cloudy with a chance of rain showers and a
slight chance of thunderstorms early in the evening, then mostly
cloudy with a slight chance of showers and thunderstorms in the
late evening and overnight. Cooler. Lows 53 to 68. Prevailing
east winds up to 10 mph.
.WEDNESDAY...Mostly sunny. Areas of smoke. Highs 72 to 87 higher
elevations...79 to 94 lower elevations. Prevailing east winds up
to 10 mph shifting to the southwest in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 55 to 70. Light winds.
.THURSDAY...Mostly sunny. Highs 71 to 86 higher elevations...
77 to 92 lower elevations. Light winds becoming southwest up to
10 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Cooler. Lows 52 to 67. Prevailing
west winds up to 10 mph.
.FRIDAY...Mostly sunny. Highs 70 to 85.
.FRIDAY NIGHT...Mostly clear. Cooler. Lows 46 to 61.
.SATURDAY THROUGH MONDAY...Mostly clear. Highs 63 to 78. Lows
45 to 60.
.MONDAY NIGHT AND TUESDAY...Mostly clear. A slight chance of rain
showers. Lows 43 to 58. Highs 62 to 77.

&&
                           TEMPERATURE    /    PRECIPITATION
QUINCY                 51   94   52   93  /  40   10    0   10
CHESTER                52   89   52   89  /  40   10   10   10


$$
=

CAZ069-031100-
West Slope Northern Sierra Nevada-
Including the city of Blue Canyon
423 PM PDT Tue Sep 2 2025

.TONIGHT...Mostly clear. A chance of rain showers and a slight
chance of thunderstorms early in the evening. Areas of smoke
after midnight. Cooler. Lows 49 to 64 higher elevations...59 to
73 lower elevations. Prevailing east winds up to 10 mph.
.WEDNESDAY...Mostly sunny. Areas of smoke through the day. At
higher elevations, a slight chance of showers and thunderstorms
in the afternoon. Highs 70 to 85 higher elevations...84 to
94 lower elevations. Prevailing east winds up to 10 mph shifting
to the southwest in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. At higher elevations, a slight
chance of rain showers in the evening. Areas of smoke after
midnight. Lows 49 to 64 higher elevations...59 to 74 lower
elevations. Light winds becoming northeast up to 10 mph after
midnight.
.THURSDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the afternoon. Highs 68 to 83 higher
elevations...82 to 92 lower elevations. Prevailing east winds up
to 10 mph shifting to the west in the afternoon.
.THURSDAY NIGHT...Mostly clear. A slight chance of rain showers
in the evening. Lows 47 to 62 higher elevations...57 to 71 lower
elevations. Prevailing west winds up to 10 mph in the evening
becoming light.
.FRIDAY...Mostly sunny. Highs 69 to 84.
.FRIDAY NIGHT...Mostly clear. Cooler. Lows 46 to 61.
.SATURDAY THROUGH TUESDAY...Mostly clear. Highs 63 to 78. Lows
44 to 59.

&&
                           TEMPERATURE    /    PRECIPITATION
BLUE CANYON            65   82   66   81  /  30   10   10    0


$$
=