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Mount Wilson, CA Weather Forecast
Mount Wilson, CA Weather Forecast Dated: 253 AM Sun Sep 20 2026
Expect a very warm period with plenty of sunshine and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.
Sunday, September 20, 2026
Mid-Morning
71°F 22°C
Overcast
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
66°F 19°C
Sunny
Pleasant near 77°F 25°C, overcast through the afternoon, turning sunny this evening, with increasing humidity and steady pressure. Winds turning from the S to the ESE at 5 mph 7 km/h.
Monday, September 21, 2026
Mid-Morning
63°F 17°C
Overcast
Mid-Afternoon
69°F 21°C
Overcast
Early-Evening
62°F 17°C
Sunny
Comfortable with temperatures reaching 69°F 21°C, overcast through the afternoon, turning sunny this evening, with steady humidity and steady pressure. Winds switching from the S to the ESE at 3 mph 5 km/h.
Tuesday, September 22, 2026
Mid-Morning
65°F 18°C
Sunny
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
67°F 20°C
Sunny
Enjoyable around 77°F 25°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the S to the ENE at 4 mph 6 km/h.
Wednesday, September 23, 2026
Mid-Morning
76°F 24°C
Sunny
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
73°F 23°C
Sunny
Warm temperatures up to 81°F 27°C, sunny throughout the day, with increasing humidity and steady pressure. Winds out of the SSW at 9 mph 14 km/h.
Thursday, September 24, 2026
Mid-Morning
74°F 24°C
Sunny
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
71°F 22°C
Sunny
Very warm with a high of 81°F 27°C, sunny throughout the day, with increasing humidity and steady pressure. Winds shifting from the E to the ENE at 5 mph 8 km/h.
Friday, September 25, 2026
Mid-Morning
75°F 24°C
Sunny
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
74°F 23°C
Sunny
Warm and summery near 84°F 29°C, sunny throughout the day, with steady humidity and steady pressure. Winds SSW at 8 mph 12 km/h.
Saturday, September 26, 2026
Mid-Morning
73°F 23°C
Cloudy
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
71°F 22°C
Sunny
Balmy with temperatures reaching 81°F 27°C, overcast in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds switching from the ESE to the E at 4 mph 6 km/h.
Sunday, September 27, 2026
Mid-Morning
73°F 23°C
Sunny
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
75°F 24°C
Sunny
Quite warm around 84°F 29°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure.
Monday, September 28, 2026
Mid-Morning
79°F 26°C
Sunny
Mid-Afternoon
87°F 30°C
Sunny
Early-Evening
77°F 25°C
Partly Cloudy
Warm temperatures up to 87°F 30°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Tuesday, September 29, 2026
Mid-Morning
71°F 22°C
Overcast
Mid-Afternoon
81°F 27°C
Cloudy
Early-Evening
72°F 22°C
Sunny
Very warm with a high of 81°F 27°C, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds moving from the E to the S at 4 mph 6 km/h.
Wednesday, September 30, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
80°F 27°C
Partly Cloudy
Early-Evening
74°F 24°C
Cloudy
Warm and summery near 80°F 27°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds swinging from the ESE to the SSW at 4 mph 6 km/h.
Thursday, October 1, 2026
Mid-Morning
74°F 23°C
Sunny
Mid-Afternoon
82°F 28°C
Sunny
Early-Evening
75°F 23°C
Sunny
Balmy with temperatures reaching 82°F 28°C, sunny throughout the day, with steady humidity and steady pressure. Winds shifting from the SE to the NNE at 4 mph 7 km/h.
Friday, October 2, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
77°F 25°C
Sunny
Quite warm around 86°F 30°C, sunny throughout the day, with steady humidity and steady pressure.
Saturday, October 3, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
74°F 24°C
Sunny
Warm temperatures up to 84°F 29°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the E to the ESE at 4 mph 6 km/h.
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