Montclair

Walla Walla County, California, United States

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Current Weather

20°

Clear

Feels Like: 20°

Min: 17°

Max: 28°

The next few hours will be overcast, with tomorrow reaching 26°C and dropping to 17°C. The coming days will be clear

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Hourly Forecast

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Today
Tomorrow

Daylight Hours

06:39

Sunrise

18:51

Sunset

12 hours 12 minutes of sunlight today

Moon

Waxing Crescent

11:15

Moonrise

20:45

Moonset

Daily Forecast

Tuesday

17°
28°

Today

15°
26°

Thursday

17°
26°

Friday

16°
27°

Saturday

17°
29°

Sunday

18°
28°

Monday

17°
26°

Tuesday

17°
28°

Wednesday

18°
29°

Thursday

18°
27°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

73% Humid
Low High

Weather in Montclair tomorrow, September 16, 2026

Expect a mostly clear day in Montclair on September 16, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. The morning looks comparatively open, with cloud near 47% around 09:00. Early outdoor plans have a better chance of staying dry and bright.

Temperatures climb from an overnight low near 15°C toward a daytime high of about 26°C. Moisture in the air spans 44%-94%, with the highest values around 05:00. A lighter breeze peaks around 17:00 near 4.1 km/h.

Later hours favour clearer intervals, as cloud stays near 43% around 20:00. The afternoon is the better half for outdoor time. Expect visibility near 15.7 km, with poorer spells close to 13.9 km. The sun rises at 06:39 and sets at 18:49, for a total of 12 hours 9 minutes of sunlight today.

Taken together, settled sunshine in Montclair on September 16, 2026 makes outdoor timing easier, with highs near 26°C.

Frequently asked questions about weather in Montclair

How warm does it get in Montclair?

The warmest month in Montclair is August, with average high temperatures of 31°C. The average temperature during this period is around 25°C.

How cold does it get in Montclair?

The coldest month in Montclair is January, with average low temperatures of 7°C. The average temperature during this period is around 12°C.

What is the wettest time of year in Montclair?

The wettest month in Montclair is January, with an average of 94mm of precipitation.

What is the driest time of year in Montclair?

The driest month in Montclair is July, with an average of 1mm of precipitation.

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