Upper Letts Lake, CA Weather Forecast & Current Conditions

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Upper Letts Lake, CA Weather Maps

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Upper Letts Lake Weather Map
UTC Time: 10/4/2026, 21:46
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Upper Letts Lake, CA

Tonight
Mostly Cloudy
63°17°
0%
Monday
Sunny
77°/ 62° 25°/ 17°
0%
Tuesday
Sunny
77°/ 61° 25°/ 16°
0%
Wednesday
Sunny
77°/ 60° 25°/ 16°
0%
Thursday
Clear
75°24°
0%
Friday
Clear
75°/ 51° 24°/ 11°
0%
Sat Night
Clear
46°8°
0%
Sunday
Sunny
59°15°
0%

Night: Mostly cloudy in the evening then clearing. Lows 63 to 73. Northwest winds up to 10 mph.

West Glenn and Colusa Foothills 1000-3000 ft, CA

HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY
Tonight
Mostly Cloudy
64°18°
0%
Monday
Sunny
88°/ 63° 31°/ 17°
0%
Tuesday
Sunny
89°/ 62° 32°/ 17°
0%
Wednesday
Sunny
88°/ 62° 31°/ 17°
0%
Thursday
Clear
86°30°
0%
Friday
Clear
86°/ 52° 30°/ 11°
0%
Sat Night
Clear
52°11°
0%
Sunday
Sunny
70°21°
0%

Night: Mostly cloudy in the evening then clearing. Lows 64 to 74. Light winds.

Williams, CA

Tonight
Mostly Cloudy
63°17°
0%
Monday
Sunny
97°/ 63° 36°/ 17°
0%
Tuesday
Sunny
98°/ 62° 37°/ 17°
0%
Wednesday
Sunny
96°/ 62° 36°/ 17°
0%
Thursday
Clear
94°34°
0%
Friday
Clear
94°/ 56° 34°/ 13°
0%
Saturday
Sunny
81°/ 54° 27°/ 12°
0%

Night: Mostly cloudy in the evening then clearing. Lows 63 to 73. Light winds.

Willows, CA

Tonight
Mostly Cloudy
61°16°
0%
Monday
Sunny
97°/ 61° 36°/ 16°
0%
Tuesday
Sunny
98°/ 61° 37°/ 16°
0%
Wednesday
Sunny
97°/ 61° 36°/ 16°
0%
Thursday
Clear
95°35°
0%
Friday
Clear
95°/ 58° 35°/ 14°
0%
Sat Night-Sun
Clear
55°13°
0%

Night: Mostly cloudy in the evening then clearing. Lows 61 to 69. Light winds.

Colusa, CA

Tonight
Mostly Cloudy
62°17°
0%
Monday
Sunny
97°/ 59° 36°/ 15°
0%
Tuesday
Sunny
97°/ 61° 36°/ 16°
0%
Wednesday
Sunny
96°/ 61° 36°/ 16°
0%
Thursday
Clear
94°34°
0%
Fri Night
Clear
94°34°
0%
Saturday
Sunny
81°/ 54° 27°/ 12°
0%

Night: Mostly cloudy in the evening then becoming mostly clear. Lows around 62. Light winds.

North Bay Interior Valleys, CA

HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY
Today
Mostly Cloudy
85°/ 58° 29°/ 14°
0%
Monday
Sunny
85°/ 58° 29°/ 14°
0%
Tuesday
Sunny
85°/ 58° 29°/ 14°
0%
Wednesday
Clear
80°27°
0%
Thu Night
Clear
80°27°
0%
Friday
Cloudy
75°/ 50° 24°/ 10°
0%

Day: Mostly cloudy. Highs mid 80s to 101. Southeast winds up to 5 mph...becoming south in the afternoon.

Night: Mostly clear. Lows in the upper 50s to lower 70s. West winds up to 5 mph...becoming northwest after midnight.

Eastern Glenn County, CA

HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY
Tonight
Mostly Cloudy
61°16°
0%
Monday
Sunny
97°/ 61° 36°/ 16°
0%
Tuesday
Sunny
98°/ 60° 37°/ 16°
0%
Wednesday
Sunny
97°/ 60° 36°/ 16°
0%
Thursday
Clear
95°35°
0%
Friday
Clear
95°/ 56° 35°/ 13°
0%
Sat Night-Sun
Clear
54°12°
0%

Night: Mostly cloudy in the evening then becoming mostly clear. Lows around 61. Light winds.

Esparto, CA

Tonight
Mostly Cloudy
65°18°
0%
Monday
Sunny
99°/ 66° 37°/ 19°
0%
Tuesday
Sunny
100°/ 64° 38°/ 18°
0%
Wednesday
Sunny
98°/ 62° 37°/ 17°
0%
Thursday
Clear
95°35°
0%
Friday
Clear
95°/ 57° 35°/ 14°
0%
Saturday
Sunny
81°/ 54° 27°/ 12°
0%

Night: Mostly cloudy in the evening then clearing. Lows 65 to 74. Light winds.

Red Bluff, CA

Tonight
Mostly Cloudy
62°17°
0%
Monday
Sunny
98°/ 62° 37°/ 17°
0%
Tuesday
Sunny
97°/ 61° 36°/ 16°
0%
Wednesday
Sunny
97°/ 61° 36°/ 16°
0%
Thursday
Clear
95°35°
0%
Friday
Clear
95°/ 56° 35°/ 13°
0%
Saturday
Sunny
81°/ 53° 27°/ 12°
0%

Night: Mostly cloudy in the evening then clearing. Lows 62 to 70. Light winds.

Yuba City, CA

Tonight
Mostly Cloudy
61°16°
0%
Monday
Sunny
98°/ 60° 37°/ 16°
0%
Tuesday
Sunny
96°/ 60° 36°/ 16°
0%
Wednesday
Sunny
94°/ 60° 34°/ 16°
0%
Thursday
Clear
95°35°
0%
Friday
Clear
95°/ 53° 35°/ 12°
0%
Sat Night
Clear
53°12°
0%
Sunday
Sunny
80°27°
0%

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows 61 to 69. Light winds.

North Bay Interior Mountains, CA

HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY
Today
Mostly Cloudy
95°/ 72° 35°/ 22°
0%
Monday
Sunny
90°/ 75° 32°/ 24°
0%
Tuesday
Sunny
90°/ 68° 32°/ 20°
0%
Wednesday
Clear
85°29°
0%
Thu Night
Clear
85°29°
0%
Fri-Fri Night
Clear
78°26°
0%
Saturday
Cloudy
70°21°
0%

Day: Mostly cloudy. Highs in the lower to mid 90s. Northeast winds around 5 mph...becoming southeast up to 5 mph in the afternoon.

Night: Mostly clear. Lows in the lower 70s. Light winds.

Chico, CA

Tonight
Mostly Cloudy
61°16°
0%
Monday
Sunny
97°/ 60° 36°/ 16°
0%
Tuesday
Sunny
95°/ 61° 35°/ 16°
0%
Wednesday
Sunny
96°/ 61° 36°/ 16°
0%
Thursday
Clear
95°35°
0%
Friday
Clear
95°/ 54° 35°/ 12°
0%
Sat Night
Clear
54°12°
0%
Sunday
Sunny
80°27°
0%

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows 61 to 71. Light winds.

Sonoma Coastal Range, CA

HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY
Today
Mostly Cloudy
95°/ 68° 35°/ 20°
0%
Monday
Sunny
95°/ 68° 35°/ 20°
0%
Tuesday
Sunny
95°/ 68° 35°/ 20°
0%
Wednesday
Sunny
95°/ 65° 35°/ 18°
0%
Thursday
Clear
65°18°
0%
Friday
Clear
65°/ 58° 18°/ 14°
0%
Saturday
Cloudy
78°26°
0%

Day: Mostly cloudy. Highs in the mid 90s. Light winds...becoming southwest around 5 mph in the afternoon.

Night: Mostly clear. Lows in the upper 60s. Light winds.

Woodland, CA

Tonight
Mostly Cloudy
64°18°
0%
Monday
Sunny
99°/ 65° 37°/ 18°
0%
Tuesday
Sunny
98°/ 63° 37°/ 17°
0%
Wednesday
Sunny
96°/ 62° 36°/ 17°
0%
Thu-Thu Night
Clear
95°35°
0%
Fri-Fri Night
Clear
89°32°
0%
Sat-Sat Night
Clear
80°27°
0%
Sunday
Sunny
81°27°
0%

Night: Mostly cloudy in the evening then clearing. Lows around 64. Light winds.

Point Reyes National Seashore, CA

HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT THIS EVENING
Today
Mostly Cloudy
85°/ 60° 29°/ 16°
0%
Monday
Sunny
72°/ 58° 22°/ 14°
0%
Tuesday
Sunny
72°/ 60° 22°/ 16°
0%
Wednesday
Sunny
82°/ 58° 28°/ 14°
0%
Thursday
Cloudy
58°14°
0%
Fri Night
Cloudy
58°14°
0%
Saturday
Mostly Cloudy
72°22°
0%

Day: Mostly cloudy. Highs in the 70s to mid 80s. Light winds...becoming west 5 to 10 mph in the afternoon.

Night: Mostly clear in the evening then becoming partly cloudy. Lows around 60. Northwest winds around 5 mph in the evening...becoming light.

Paradise, CA

Tonight
Mostly Cloudy
65°18°
0%
Monday
Sunny
88°/ 64° 31°/ 18°
0%
Tuesday
Sunny
89°/ 64° 32°/ 18°
0%
Wednesday
Sunny
88°/ 64° 31°/ 18°
0%
Thursday
Clear
86°30°
0%
Friday
Clear
86°/ 58° 30°/ 14°
0%
Sat Night
Clear
52°11°
0%
Sunday
Sunny
71°22°
0%

Night: Mostly cloudy. Lows 65 to 75. Northeast winds up to 10 mph.

Whiskeytown, CA

HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY
Tonight
Mostly Cloudy
61°16°
0%
Monday
Sunny
90°/ 60° 32°/ 16°
0%
Tuesday
Sunny
90°/ 60° 32°/ 16°
0%
Wednesday
Sunny
89°/ 61° 32°/ 16°
0%
Thursday
Clear
87°31°
0%
Friday
Clear
87°/ 53° 31°/ 12°
0%
Sat Night-Sun
Clear
48°9°
0%

Night: Mostly cloudy in the evening then clearing. Lows 61 to 71. Northwest winds up to 10 mph.

Auburn, CA

Tonight
Mostly Cloudy
63°17°
0%
Monday
Sunny
90°/ 61° 32°/ 16°
0%
Tuesday
Sunny
91°/ 59° 33°/ 15°
0%
Wednesday
Sunny
90°/ 59° 32°/ 15°
0%
Thursday
Clear
87°31°
0%
Friday
Clear
87°/ 57° 31°/ 14°
0%
Sat Night-Sun
Clear
51°11°
0%

Night: Mostly cloudy in the evening then becoming partly cloudy. Lows 63 to 71. Light winds.

Mineral, CA

Tonight
Mostly Cloudy
54°12°
0%
Monday
Cloudy
77°/ 52° 25°/ 11°
0%
Tuesday
Sunny
78°/ 51° 26°/ 11°
0%
Wednesday
Sunny
79°/ 51° 26°/ 11°
0%
Thursday
Clear
76°24°
0%
Friday
Clear
76°/ 46° 24°/ 8°
0%
Sat Night-Sun
Clear
40°4°
0%

Night: Mostly cloudy. Lows 54 to 64. Light winds.

Fairfield, CA

HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY
Tonight
Cloudy
63°17°
0%
Monday
Sunny
100°/ 64° 38°/ 18°
0%
Tuesday
Sunny
98°/ 63° 37°/ 17°
0%
Wednesday
Sunny
100°/ 60° 38°/ 16°
0%
Thu-Thu Night
Clear
96°36°
0%
Fri-Fri Night
Clear
88°31°
0%
Sat-Sat Night
Clear
78°26°
0%
Sunday
Sunny
81°27°
0%

Night: Partly cloudy in the evening then clearing. Lows 63 to 68. Light winds.

Names listed above may include county names.

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