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Montclair, California Weather Forecast
Montclair, California Weather
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Weather Forecast for Montclair, California : San Bernardino County
Issued: 2:24 am PST Dec 18, 2025 Latitude: 34.0775104 Longitude: -117.6897776 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Sunny on This Afternoon Mostly Clear on Tonight Sunny on Friday Mostly Sunny on Saturday Morning Fog on Sunday Morning Fog on Monday 20% chance of rain on Tuesday Rain on Wednesday
High: 82°F Low: 56°F High: 77°F High: 73°F High: 73°F High: 73°F High: 69°F High: 64°F
Low: 53°F Low: 53°F Low: 53°F Low: 52°F Low: 54°F  
Sunny Mostly Clear Sunny Mostly Sunny Morning Fog Morning Fog Rain Rain
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Sunny on This Afternoon This Afternoon... Sunny, with a high near 82. Calm wind becoming west around 5 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm after midnight.

Sunny on Friday Friday... Sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon.

Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 53. West wind around 5 mph becoming calm in the evening.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 73. Calm wind becoming west around 5 mph in the afternoon.

Morning Fog on Saturday Night Saturday Night... Patchy fog after 4am. Otherwise, partly cloudy, with a low around 53.

Morning Fog on Sunday Sunday... Patchy fog before 10am. Otherwise, partly sunny, with a high near 73.

Patchy Fog on Sunday Night Sunday Night... Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 53.

Morning Fog on Monday Monday... Patchy fog before 10am. Otherwise, partly sunny, with a high near 73.

10% chance of rain Monday Night Monday Night... A slight chance of showers after 4am. Mostly cloudy, with a low around 52.

20% chance of rain Tuesday Tuesday... A chance of rain. Mostly cloudy, with a high near 69.

70% chance of rain Tuesday Night Tuesday Night... Rain likely. The rain could be heavy at times. Mostly cloudy, with a low around 54.

Rain on Wednesday Wednesday... Rain. The rain could be heavy at times. Mostly cloudy, with a high near 64.

Sun Almanac for Montclair, California
Sunrise: 06:51 AM
Sunset: 4:44 PM
Civil Sunrise:06:23 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 05:52 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:22 AM
Astro Sunset: 6:14 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.