498
FPUS56 KSTO 311222
ZFPSTO

Interior Northern California Zone Forecasts for California
National Weather Service Sacramento CA
522 AM PDT Sun Aug 31 2025

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


CAZ013-312300-
Shasta Lake Area / Northern Shasta County-
Including the city of Shasta Dam
522 AM PDT Sun Aug 31 2025

.TODAY...Patchy smoke in the morning. Mostly sunny. Highs 81 to
96 higher elevations...91 to 100 lower elevations. Prevailing
north winds up to 10 mph shifting to the south in the afternoon.
.TONIGHT...Mostly clear. Patchy smoke after midnight. Lows 53 to
68 higher elevations...61 to 71 lower elevations. Light winds
becoming north up to 10 mph after midnight.
.LABOR DAY...Sunny. Highs 82 to 97 higher elevations...93 to
102 lower elevations. Prevailing northeast winds up to 10 mph
shifting to the south in the afternoon.
.MONDAY NIGHT...Clear. Lows 56 to 71 higher elevations...64 to
74 lower elevations. Prevailing south winds up to 10 mph shifting
to the north after midnight.
.TUESDAY...Mostly sunny. Warmer. Highs 85 to 100 higher
elevations...96 to 104 lower elevations. Prevailing north winds
up to 10 mph shifting to the southeast in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows 57 to 72.
.WEDNESDAY...Mostly sunny. Highs 84 to 99.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 56 to 71.
Highs 84 to 99.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 55 to
70. Highs 83 to 98.
.SATURDAY...Mostly sunny. Highs 77 to 92.

&&
                        TEMPERATURE  /  PRECIPITATION
SHASTA DAM             98   68   99  /   0    0    0


$$
=

CAZ014-312300-
Burney Basin / Eastern Shasta County-
Including the city of Burney
522 AM PDT Sun Aug 31 2025

.TODAY...Patchy smoke early in the morning. Mostly sunny. Highs
82 to 93. Light winds becoming west up to 10 mph with gusts to
around 25 mph in the afternoon.
.TONIGHT...Mostly clear. Lows 47 to 60. Prevailing southwest
winds up to 10 mph with gusts to around 25 mph in the evening
becoming light.
.LABOR DAY...Sunny. Highs 83 to 94. Light winds becoming
southwest up to 10 mph in the afternoon.
.MONDAY NIGHT...Clear. Lows 50 to 61. Prevailing southwest winds
up to 10 mph with gusts to around 25 mph in the evening becoming
light.
.TUESDAY...Mostly sunny. Highs 83 to 95. Light winds.
.TUESDAY NIGHT...Mostly cloudy. Lows 48 to 61.
.WEDNESDAY...Mostly sunny. Highs 80 to 93.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 48 to 60.
Highs 80 to 93.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 48 to 61. Highs
79 to 93.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 46 to 58. Highs
76 to 91.

&&
                        TEMPERATURE  /  PRECIPITATION
BURNEY                 90   49   91  /   0    0    0


$$
=

CAZ015-312300-
Northern Sacramento Valley-
Including the cities of Redding and Red Bluff
522 AM PDT Sun Aug 31 2025

.TODAY...Patchy smoke until late afternoon. Mostly sunny. Highs
around 98. North winds up to 10 mph shifting to the south with
gusts to around 20 mph in the afternoon.
.TONIGHT...Mostly clear. Lows 61 to 71. South winds up to 10 mph
with gusts to around 20 mph shifting to the north after midnight.
.LABOR DAY...Sunny. Highs around 100. North winds up to 10 mph
shifting to the south in the afternoon.
.MONDAY NIGHT...Clear. Lows 66 to 74. South winds up to 10 mph
with gusts to around 20 mph in the evening becoming light.
.TUESDAY...Mostly sunny. Highs 97 to 103. North winds up to
10 mph shifting to the south in the afternoon.
.TUESDAY NIGHT...Mostly clear. Lows 64 to 72.
.WEDNESDAY...Mostly sunny. Highs 94 to 100.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 64 to 72.
Highs 94 to 100.
.THURSDAY NIGHT...Partly cloudy. Lows 64 to 72.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 88 to 98. Lows
62 to 72.

&&
                        TEMPERATURE  /  PRECIPITATION
REDDING               100   62  102  /   0    0    0
RED BLUFF              99   64  101  /   0    0    0


$$
=

CAZ016-312300-
Central Sacramento Valley-
Including the cities of Chico, Oroville, and Marysville/Yuba City
522 AM PDT Sun Aug 31 2025

.TODAY...Mostly sunny. Highs around 97. Light winds becoming
south up to 10 mph in the afternoon.
.TONIGHT...Clear. Lows 60 to 70. Southeast winds up to 10 mph.
.LABOR DAY...Sunny. Highs 96 to 102. Light winds becoming
southwest up to 10 mph in the afternoon.
.MONDAY NIGHT...Clear. Lows 63 to 73. South winds up to 10 mph
with gusts to around 20 mph in the evening becoming light.
.TUESDAY...Mostly sunny. Highs around 97. Light winds becoming
south around 10 mph in the afternoon.
.TUESDAY NIGHT...Mostly clear. Lows 61 to 69.
.WEDNESDAY...Mostly sunny. Highs around 94.
.WEDNESDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 58 to
68. Highs around 94.
.SATURDAY...Mostly sunny. Highs around 89.

&&
                        TEMPERATURE  /  PRECIPITATION
CHICO                  98   69  101  /   0    0    0
OROVILLE               99   67  101  /   0    0    0
MARYSVILLE/YUBA CITY  100   63  101  /   0    0    0


$$
=

CAZ017-312300-
Southern Sacramento Valley-
Including the city of Sacramento
522 AM PDT Sun Aug 31 2025

.TODAY...Sunny. Highs 97 to 103. Southwest winds up to 10 mph.
Gusts up to 20 mph in the afternoon.
.TONIGHT...Clear. Lows 60 to 70. South winds up to 10 mph with
gusts to around 20 mph.
.LABOR DAY...Sunny. Highs 98 to 104. Light winds becoming west up
to 10 mph in the afternoon.
.MONDAY NIGHT...Clear. Lows 61 to 71. Southwest winds up to
10 mph.
.TUESDAY...Sunny. Highs 93 to 99. South winds up to 10 mph.
.TUESDAY NIGHT...Clear. Lows 58 to 67.
.WEDNESDAY...Mostly sunny. Highs 91 to 97.
.WEDNESDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 57 to
67. Highs 88 to 98.
.SATURDAY...Mostly sunny. Highs 85 to 93.

&&
                        TEMPERATURE  /  PRECIPITATION
SACRAMENTO            101   65  103  /   0    0    0
SAC EXEC AIRPORT      100   63  101  /   0    0    0


$$
=

CAZ018-312300-
Carquinez Strait and Delta-
Including the city of Fairfield/Suisun
522 AM PDT Sun Aug 31 2025

.TODAY...Sunny. Highs 94 to 100. West winds 10 to 15 mph.
.TONIGHT...Clear. Lows 59 to 65. West winds 10 to 15 mph with
gusts to around 25 mph.
.LABOR DAY...Sunny. Highs 93 to 99. West winds around 10 mph with
gusts to around 20 mph.
.MONDAY NIGHT...Clear. Lows 60 to 66. West winds 10 to 15 mph.
.TUESDAY...Sunny. Highs 88 to 94...except 82 to 88 near the bay.
Southwest winds 10 to 15 mph with gusts to around 25 mph.
.TUESDAY NIGHT...Clear. Lows around 60.
.WEDNESDAY...Mostly sunny. Highs 85 to 91.
.WEDNESDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 56 to 62.
Highs 83 to 89.

&&
                        TEMPERATURE  /  PRECIPITATION
FAIRFIELD/SUISUN      101   61  100  /   0    0    0


$$
=

CAZ019-312300-
Northern San Joaquin Valley-
Including the cities of Stockton and Modesto
522 AM PDT Sun Aug 31 2025

.TODAY...Sunny. Highs 96 to 102. Northwest winds up to 15 mph.
.TONIGHT...Clear. Lows 63 to 73. Northwest winds up to 15 mph.
Gusts up to 25 mph in the evening.
.LABOR DAY...Sunny. Highs 96 to 103. Northwest winds up to
10 mph.
.MONDAY NIGHT...Clear. Lows 63 to 73. Northwest winds up to
10 mph.
.TUESDAY...Sunny. Highs 93 to 100. Northwest winds up to 10 mph.
.TUESDAY NIGHT...Clear. Lows 59 to 69.
.WEDNESDAY...Sunny. Highs 91 to 97.
.WEDNESDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 59 to 69.
Highs 87 to 97.

&&
                        TEMPERATURE  /  PRECIPITATION
STOCKTON              103   63  102  /   0    0    0
MODESTO               101   69  101  /   0    0    0


$$
=

CAZ063-312300-
Mountains Southwestern Shasta County to Western Colusa County-
Including the city of Alder Springs
522 AM PDT Sun Aug 31 2025

.TODAY...Mostly sunny. Patchy smoke in the late morning and early
afternoon. Highs 76 to 91 higher elevations...92 to 98 lower
elevations. Prevailing northwest winds up to 10 mph shifting to
the southeast in the afternoon.
.TONIGHT...Mostly clear. Lows 57 to 71 higher elevations...66 to
74 lower elevations. Prevailing west winds up to 10 mph.
.LABOR DAY...Sunny. Highs 77 to 92 higher elevations...94 to
99 lower elevations. Prevailing northwest winds up to 10 mph
shifting to the southeast in the afternoon.
.MONDAY NIGHT...Clear. Lows 61 to 75 higher elevations...70 to
78 lower elevations. Prevailing southwest winds up to 10 mph
shifting to the west after midnight.
.TUESDAY...Sunny. Highs 78 to 93 higher elevations...95 to
100 lower elevations. Prevailing northwest winds up to 10 mph
shifting to the southeast in the afternoon.
.TUESDAY NIGHT...Mostly clear. Cooler. Lows 60 to 75.
.WEDNESDAY...Mostly sunny. Highs 79 to 94.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 60 to 75.
Highs 79 to 94.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 60 to 75. Highs
78 to 93.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 57 to 71. Highs
76 to 91.

&&
                        TEMPERATURE  /  PRECIPITATION
ALDER SPRINGS          83   65   85  /   0    0    0


$$
=

CAZ066-312300-
Northeast Foothills/Sacramento Valley-
Including the city of Paradise
522 AM PDT Sun Aug 31 2025

.TODAY...Mostly sunny. Highs 87 to 99. Prevailing east winds up
to 10 mph shifting to the southwest in the afternoon.
.TONIGHT...Mostly clear. Lows 63 to 77. Prevailing southeast
winds up to 10 mph.
.LABOR DAY...Sunny. Highs 89 to 101. Prevailing east winds up to
10 mph shifting to the southwest in the afternoon.
.MONDAY NIGHT...Clear. Lows 66 to 78. Prevailing south winds up
to 10 mph shifting to the east after midnight.
.TUESDAY...Mostly sunny. Highs 87 to 101. Prevailing northeast
winds up to 10 mph shifting to the southwest in the afternoon.
.TUESDAY NIGHT...Mostly clear. Lows 64 to 74.
.WEDNESDAY...Mostly sunny. Highs 85 to 97.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 64 to 74.
Highs 85 to 98.
.THURSDAY NIGHT...Partly cloudy. Lows 64 to 74.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 80 to 95. Lows
62 to 74.

&&
                        TEMPERATURE  /  PRECIPITATION
PARADISE               92   73   94  /   0    0    0


$$
=

CAZ067-312300-
Motherlode-
Including the cities of Grass Valley and Jackson
522 AM PDT Sun Aug 31 2025

.TODAY...Sunny. Highs 90 to 100. Prevailing northeast winds up to
10 mph shifting to the west in the afternoon.
.TONIGHT...Clear. Lows 65 to 75. Light winds. Gusts up to 20 mph.
.LABOR DAY...Sunny. Highs 92 to 102. Prevailing east winds up to
10 mph shifting to the southwest in the afternoon.
.MONDAY NIGHT...Clear. Lows 67 to 75. Light winds.
.TUESDAY...Mostly sunny. Highs 89 to 99. Light winds becoming
southwest up to 10 mph in the afternoon.
.TUESDAY NIGHT...Mostly clear. Lows 62 to 72.
.WEDNESDAY...Mostly sunny. Highs 87 to 97.
.WEDNESDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 59 to 72.
Highs 82 to 97.

&&
                        TEMPERATURE  /  PRECIPITATION
GRASS VALLEY           93   66   94  /   0    0    0
JACKSON                97   70   98  /   0    0    0


$$
=

CAZ068-312300-
Western Plumas County/Lassen Park-
Including the cities of Chester and Quincy
522 AM PDT Sun Aug 31 2025

.TODAY...Mostly sunny. Highs 71 to 86 higher elevations...78 to
93 lower elevations. Light winds becoming southwest up to 10 mph
in the afternoon.
.TONIGHT...Mostly clear. Lows 54 to 69. Prevailing south winds up
to 10 mph shifting to the southeast after midnight.
.LABOR DAY...Sunny. Highs 72 to 87 higher elevations...80 to
94 lower elevations. Prevailing east winds up to 10 mph shifting
to the southwest in the afternoon.
.MONDAY NIGHT...Clear. Lows 55 to 70. Prevailing southwest winds
up to 10 mph shifting to the east after midnight.
.TUESDAY...Mostly sunny. Highs 73 to 88 higher elevations...80 to
93 lower elevations. Prevailing east winds up to 10 mph shifting
to the south in the afternoon.
.TUESDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Lows 53 to 68.
.WEDNESDAY...Mostly sunny. Highs 75 to 90.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 53 to 68.
Highs 75 to 90.
.THURSDAY NIGHT...Partly cloudy. Lows 53 to 68.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 72 to 87. Lows
52 to 67.

&&
                        TEMPERATURE  /  PRECIPITATION
QUINCY                 93   50   95  /   0    0    0
CHESTER                88   49   89  /   0    0    0


$$
=

CAZ069-312300-
West Slope Northern Sierra Nevada-
Including the city of Blue Canyon
522 AM PDT Sun Aug 31 2025

.TODAY...Sunny. Highs 70 to 85 higher elevations...84 to 96 lower
elevations. Prevailing southeast winds up to 10 mph shifting to
the southwest in the afternoon.
.TONIGHT...Clear. Patchy smoke after midnight. Lows 49 to
64 higher elevations...60 to 74 lower elevations. Prevailing west
winds up to 10 mph shifting to the east after midnight.
.LABOR DAY...Sunny. Highs 72 to 87 higher elevations...86 to
98 lower elevations. Prevailing east winds up to 10 mph shifting
to the southwest in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows 51 to 66 higher elevations...
61 to 75 lower elevations. Prevailing west winds up to 10 mph
shifting to the east after midnight.
.TUESDAY...Partly cloudy with a slight chance of rain showers in
the morning, then mostly cloudy with a chance of rain showers and
a slight chance of thunderstorms in the afternoon. Highs 70 to
85 higher elevations...85 to 95 lower elevations. Prevailing east
winds up to 10 mph shifting to the south in the afternoon.
.TUESDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Lows 52 to 67.
.WEDNESDAY...Mostly sunny. Highs 74 to 89.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 52 to 67.
Highs 74 to 89.
.THURSDAY NIGHT...Partly cloudy. Lows 52 to 67.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 71 to 86. Lows
51 to 66.

&&
                        TEMPERATURE  /  PRECIPITATION
BLUE CANYON            83   66   85  /   0    0    0


$$
=