808
FPUS56 KSTO 222322
ZFPSTO

Interior Northern California Zone Forecasts for California
National Weather Service Sacramento CA
422 PM PDT Fri Aug 22 2025

Spot temperatures and probabilities of measurable precipitation
are for tonight, Saturday, Saturday night, and Sunday.


CAZ013-231100-
Shasta Lake Area / Northern Shasta County-
Including the city of Shasta Dam
422 PM PDT Fri Aug 22 2025

...HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT SATURDAY...

.TONIGHT...Mostly clear. Lows 61 to 76. Light winds.
.SATURDAY...Partly cloudy in the morning then clearing. Areas of
smoke in the morning. Highs 86 to 101 higher elevations...97 to
106 lower elevations. Light winds becoming south up to 10 mph in
the afternoon.
.SATURDAY NIGHT...Mostly clear. Areas of smoke after midnight.
Lows 59 to 74 higher elevations...67 to 77 lower elevations.
Prevailing south winds up to 10 mph in the evening becoming
light.
.SUNDAY...Mostly sunny. Highs 86 to 101 higher elevations...96 to
106 lower elevations. Light winds becoming south up to 10 mph in
the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows 58 to 73 higher elevations...
67 to 77 lower elevations. Prevailing south winds up to 10 mph in
the evening becoming light.
.MONDAY...Sunny. Highs 87 to 102.
.MONDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Lows 58 to 73.
.TUESDAY...Sunny. Highs 86 to 101.
.TUESDAY NIGHT...Partly cloudy with a chance of rain showers.
Lows 57 to 72.
.WEDNESDAY...Mostly sunny. Highs 80 to 95.
.WEDNESDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Cooler. Lows 54 to 69.
.THURSDAY THROUGH FRIDAY...Mostly clear. Highs 79 to 94. Lows
53 to 68.

&&
                           TEMPERATURE    /    PRECIPITATION
SHASTA DAM             75  103   74  102  /   0    0    0    0


$$
=

CAZ014-231100-
Burney Basin / Eastern Shasta County-
Including the city of Burney
422 PM PDT Fri Aug 22 2025

.TONIGHT...Partly cloudy. Lows 54 to 66. Prevailing west winds up
to 10 mph in the evening becoming light.
.SATURDAY...Partly cloudy in the morning then clearing. Highs
87 to 98. Light winds becoming west up to 10 mph in the
afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 53 to 67. Prevailing west
winds up to 10 mph in the evening becoming light.
.SUNDAY...Mostly sunny. Highs 85 to 96. Light winds becoming west
up to 10 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows 51 to 65. Prevailing southwest
winds up to 10 mph in the evening becoming light.
.MONDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Highs 83 to 96.
.MONDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Lows 50 to 64.
.TUESDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Highs 81 to 94.
.TUESDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Lows 49 to 63.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. A slight chance of
rain showers. Highs 77 to 90. Lows 47 to 62.
.THURSDAY THROUGH FRIDAY...Mostly clear. Highs 76 to 88. Lows
45 to 60.

&&
                           TEMPERATURE    /    PRECIPITATION
BURNEY                 57   95   59   93  /   0    0    0    0


$$
=

CAZ015-231100-
Northern Sacramento Valley-
Including the cities of Redding and Red Bluff
422 PM PDT Fri Aug 22 2025

...HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT SATURDAY...

.TONIGHT...Mostly clear. Lows 68 to 76. South winds up to 10 mph
in the evening becoming light.
.SATURDAY...Partly cloudy in the morning then clearing. Areas of
smoke. Highs around 103. Light winds becoming south up to 10 mph
in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 69 to 75. Southeast winds up
to 10 mph. Gusts up to 20 mph in the evening.
.SUNDAY...Mostly sunny. Highs 99 to 105. Light winds becoming
south up to 10 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows 68 to 76. South winds up to
10 mph with gusts to around 20 mph in the evening becoming light.
.MONDAY...Sunny. Highs 97 to 105.
.MONDAY NIGHT...Clear. Lows 69 to 75.
.TUESDAY...Mostly sunny. Highs 97 to 103.
.TUESDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Lows 67 to 73.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs around 94.
Lows 64 to 73.
.THURSDAY...Sunny. Highs around 94.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows around 65. Highs
around 94.

&&
                           TEMPERATURE    /    PRECIPITATION
REDDING                69  105   69  104  /   0    0    0    0
RED BLUFF              72  104   71  103  /   0    0    0    0


$$
=

CAZ016-231100-
Central Sacramento Valley-
Including the cities of Chico, Oroville, and Marysville/Yuba City
422 PM PDT Fri Aug 22 2025

...HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT SATURDAY...

.TONIGHT...Mostly clear. Areas of smoke after midnight. Lows
65 to 75. Southeast winds up to 10 mph.
.SATURDAY...Areas of smoke in the morning. Mostly sunny. Highs
around 100. Light winds becoming south up to 10 mph in the
afternoon.
.SATURDAY NIGHT...Areas of smoke in the evening. Mostly clear.
Lows 64 to 72. South winds up to 10 mph.
.SUNDAY...Sunny. Highs around 98. Southeast winds up to 10 mph.
.SUNDAY NIGHT...Clear. Lows 63 to 71. Southeast winds up to
10 mph.
.MONDAY...Sunny. Highs around 97.
.MONDAY NIGHT...Mostly clear. Lows 64 to 72.
.TUESDAY AND TUESDAY NIGHT...Mostly clear. Highs around 97. Lows
63 to 72.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs around 92.
Lows 60 to 69.
.THURSDAY THROUGH FRIDAY...Clear. Highs around 92. Lows 59 to 66.

&&
                           TEMPERATURE    /    PRECIPITATION
CHICO                  74  102   73  101  /   0    0    0    0
OROVILLE               72  102   70  100  /   0    0    0    0
MARYSVILLE/YUBA CITY   68  102   66   99  /   0    0    0    0


$$
=

CAZ017-231100-
Southern Sacramento Valley-
Including the city of Sacramento
422 PM PDT Fri Aug 22 2025

...HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT SATURDAY...

.TONIGHT...Mostly clear. Lows 62 to 72. South winds up to 10 mph.
.SATURDAY...Mostly sunny. Highs 96 to 104. Southwest winds up to
10 mph with gusts to around 20 mph.
.SATURDAY NIGHT...Mostly clear. Lows 60 to 70. South winds up to
10 mph with gusts to around 20 mph.
.SUNDAY...Sunny. Highs 93 to 101. Southwest winds up to 10 mph.
.SUNDAY NIGHT...Clear. Lows 58 to 68. South winds up to 10 mph
with gusts to around 20 mph.
.MONDAY...Sunny. Highs 92 to 100.
.MONDAY NIGHT...Mostly clear. Lows 59 to 69.
.TUESDAY AND TUESDAY NIGHT...Mostly clear. Highs 92 to 100. Lows
59 to 69.
.WEDNESDAY THROUGH FRIDAY...Clear. Highs 88 to 96. Lows 57 to 67.

&&
                           TEMPERATURE    /    PRECIPITATION
SACRAMENTO             66  100   65   99  /   0    0    0   10
SAC EXEC AIRPORT       65   99   62   96  /   0    0    0    0


$$
=

CAZ018-231100-
Carquinez Strait and Delta-
Including the city of Fairfield/Suisun
422 PM PDT Fri Aug 22 2025

...HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT SATURDAY...

.TONIGHT...Mostly clear. Lows 59 to 67. West winds 10 to 15 mph
with gusts to around 25 mph.
.SATURDAY...Mostly sunny. Near the bay, mostly cloudy in the
morning then clearing. Highs 89 to 95...except 83 to 89 near the
bay. West winds 10 to 15 mph with gusts to around 25 mph.
.SATURDAY NIGHT...Mostly clear. Lows 58 to 64. Southwest winds
10 to 15 mph with gusts to around 25 mph.
.SUNDAY...Sunny. Near the bay, mostly cloudy in the morning then
clearing. Highs 86 to 92...except 80 to 86 near the bay. West
winds 10 to 15 mph with gusts to around 25 mph.
.SUNDAY NIGHT...Clear. Lows 57 to 63. Southwest winds 10 to
15 mph with gusts to around 25 mph.
.MONDAY...Sunny. Highs 86 to 92.
.MONDAY NIGHT...Mostly clear. Lows 58 to 64.
.TUESDAY THROUGH FRIDAY...Clear. Highs 83 to 89. Lows 56 to 64.

&&
                           TEMPERATURE    /    PRECIPITATION
FAIRFIELD/SUISUN       62   95   60   93  /   0    0    0    0


$$
=

CAZ019-231100-
Northern San Joaquin Valley-
Including the cities of Stockton and Modesto
422 PM PDT Fri Aug 22 2025

...HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT SATURDAY...

.TONIGHT...Mostly clear. Lows 64 to 74. Northwest winds up to
10 mph.
.SATURDAY...Mostly sunny. Highs 96 to 102. Northwest winds up to
10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 62 to 72. Northwest winds up
to 10 mph with gusts to around 20 mph.
.SUNDAY...Sunny. Highs 93 to 101. Northwest winds up to 10 mph.
.SUNDAY NIGHT...Clear. Lows 61 to 71. Northwest winds up to
10 mph with gusts to around 20 mph.
.MONDAY...Sunny. Highs 93 to 99.
.MONDAY NIGHT...Clear. Lows 61 to 71.
.TUESDAY THROUGH FRIDAY...Clear. Highs 88 to 98. Lows 60 to 70.

&&
                           TEMPERATURE    /    PRECIPITATION
STOCKTON               66  101   64   98  /   0    0    0   10
MODESTO                70  102   69   99  /   0   10   10   10


$$
=

CAZ063-231100-
Mountains Southwestern Shasta County to Western Colusa County-
Including the city of Alder Springs
422 PM PDT Fri Aug 22 2025

...HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT SATURDAY...

.TONIGHT...Partly cloudy. Areas of smoke after midnight. Lows
64 to 76 higher elevations...71 to 79 lower elevations.
Prevailing south winds up to 10 mph shifting to the west after
midnight.
.SATURDAY...Mostly cloudy in the morning then clearing. Areas of
smoke. Highs 81 to 96 higher elevations...97 to 102 lower
elevations. Prevailing north winds up to 10 mph shifting to the
southeast in the afternoon.
.SATURDAY NIGHT...Mostly clear. Areas of smoke after midnight.
Lows 64 to 76 higher elevations...71 to 79 lower elevations.
Prevailing south winds up to 10 mph shifting to the west after
midnight.
.SUNDAY...Mostly sunny. Highs 80 to 95 higher elevations...96 to
102 lower elevations. Prevailing northwest winds up to 10 mph
shifting to the southeast in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows 63 to 75 higher elevations...
71 to 79 lower elevations. Prevailing south winds up to 10 mph
shifting to the northwest after midnight.
.MONDAY...Mostly sunny. Highs 83 to 98.
.MONDAY NIGHT...Mostly clear. Lows 64 to 79.
.TUESDAY AND TUESDAY NIGHT...Mostly clear. A slight chance of
rain showers. Highs 82 to 97. Lows 63 to 78.
.WEDNESDAY...Partly cloudy with a slight chance of rain showers.
Highs 77 to 92.
.WEDNESDAY NIGHT...Mostly clear. Cooler. Lows 58 to 72.
.THURSDAY...Sunny. Highs 76 to 91.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 56 to 71. Highs
76 to 91.

&&
                           TEMPERATURE    /    PRECIPITATION
ALDER SPRINGS          70   87   69   89  /   0    0    0    0


$$
=

CAZ066-231100-
Northeast Foothills/Sacramento Valley-
Including the city of Paradise
422 PM PDT Fri Aug 22 2025

.TONIGHT...Mostly clear. Lows 70 to 80. Light winds becoming east
up to 10 mph after midnight.
.SATURDAY...Partly cloudy in the morning then clearing. Highs
91 to 103. Light winds becoming southwest up to 10 mph in the
afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 69 to 78. Prevailing south
winds up to 10 mph shifting to the east after midnight.
.SUNDAY...Mostly sunny. Highs 89 to 103. Light winds becoming
southwest up to 10 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows 68 to 76. Prevailing south
winds up to 10 mph in the evening becoming light.
.MONDAY...Sunny. Highs 88 to 102.
.MONDAY NIGHT...Mostly clear. Lows 67 to 77.
.TUESDAY...Mostly sunny. Highs 86 to 100.
.TUESDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Lows 65 to 73.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 83 to 95.
Lows 63 to 73.
.THURSDAY...Sunny. Highs 82 to 94.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 60 to 70. Highs
81 to 94.

&&
                           TEMPERATURE    /    PRECIPITATION
PARADISE               77   95   75   94  /   0    0    0    0


$$
=

CAZ067-231100-
Motherlode-
Including the cities of Grass Valley and Jackson
422 PM PDT Fri Aug 22 2025

.TONIGHT...Mostly clear. Lows 68 to 78. Light winds.
.SATURDAY...Mostly sunny. Highs 93 to 101. Light winds becoming
west up to 10 mph in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows 66 to 76. Light winds.
.SUNDAY...Mostly sunny. Highs 90 to 100. Light winds becoming
southwest up to 10 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows 64 to 74. Prevailing west
winds up to 10 mph in the evening becoming light.
.MONDAY...Partly cloudy with a slight chance of rain showers.
Highs 89 to 99.
.MONDAY NIGHT...Mostly clear. Lows 64 to 74.
.TUESDAY...Partly cloudy with a slight chance of rain showers.
Highs 88 to 98.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 62 to 72. Highs
84 to 98.
.WEDNESDAY NIGHT THROUGH FRIDAY...Clear. Lows 59 to 69. Highs
82 to 94.

&&
                           TEMPERATURE    /    PRECIPITATION
GRASS VALLEY           71   96   70   93  /   0    0   10   10
JACKSON                70   97   68   95  /   0   10   10   10


$$
=

CAZ068-231100-
Western Plumas County/Lassen Park-
Including the cities of Chester and Quincy
422 PM PDT Fri Aug 22 2025

.TONIGHT...Partly cloudy. Lows 59 to 74. Light winds.
.SATURDAY...Partly cloudy in the morning then clearing. Highs
77 to 92 higher elevations...84 to 98 lower elevations. Light
winds becoming southwest up to 10 mph in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows 58 to 73. Prevailing
southwest winds up to 10 mph in the evening becoming light.
.SUNDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the afternoon. Highs 74 to 89 higher
elevations...81 to 96 lower elevations. Light winds becoming
southwest up to 10 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows 56 to 71. Prevailing southwest
winds up to 10 mph in the evening becoming light.
.MONDAY...Partly cloudy with a chance of rain showers and a
slight chance of thunderstorms. Highs 78 to 93.
.MONDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Lows 55 to 70.
.TUESDAY...Partly cloudy with a chance of rain showers and a
slight chance of thunderstorms. Highs 76 to 91.
.TUESDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Lows 53 to 68.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. A slight chance of
rain showers. Highs 72 to 87. Lows 52 to 67.
.THURSDAY THROUGH FRIDAY...Mostly clear. Highs 71 to 86. Lows
50 to 65.

&&
                           TEMPERATURE    /    PRECIPITATION
QUINCY                 55   99   58   96  /   0   10   10   20
CHESTER                57   95   57   92  /   0   10   10   20


$$
=

CAZ069-231100-
West Slope Northern Sierra Nevada-
Including the city of Blue Canyon
422 PM PDT Fri Aug 22 2025

.TONIGHT...Mostly clear. Lows 54 to 69 higher elevations...64 to
78 lower elevations. Light winds becoming east up to 10 mph after
midnight.
.SATURDAY...Mostly sunny in the morning, then partly cloudy with
a chance of rain showers and a slight chance of thunderstorms in
the afternoon. Highs 75 to 90 higher elevations...89 to 99 lower
elevations. Prevailing southeast winds up to 10 mph shifting to
the southwest in the afternoon.
.SATURDAY NIGHT...Mostly cloudy with a chance of rain showers in
the evening, then partly cloudy with a slight chance of rain
showers after midnight. Lows 53 to 68 higher elevations...64 to
78 lower elevations. Prevailing west winds up to 10 mph shifting
to the east after midnight.
.SUNDAY...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 72 to
87 higher elevations...86 to 96 lower elevations. Prevailing east
winds up to 10 mph shifting to the southwest in the afternoon.
.SUNDAY NIGHT...Mostly clear. A slight chance of showers and
thunderstorms in the evening. Lows 51 to 66 higher elevations...
61 to 75 lower elevations. Prevailing west winds up to 10 mph
shifting to the east after midnight.
.MONDAY...Partly cloudy with a chance of rain showers and a
slight chance of thunderstorms. Highs 75 to 90.
.MONDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Lows 53 to 68.
.TUESDAY...Partly cloudy with a chance of rain showers and a
slight chance of thunderstorms. Highs 73 to 88.
.TUESDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Lows 52 to 67.
.WEDNESDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Highs 70 to 85.
.WEDNESDAY NIGHT...Partly cloudy with a slight chance of rain
showers. Cooler. Lows 49 to 64.
.THURSDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Highs 69 to 84.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 48 to 63. Highs
69 to 84.

&&
                           TEMPERATURE    /    PRECIPITATION
BLUE CANYON            72   88   71   85  /   0   10   10   20


$$
=