Current Conditions

Montclair, California

76°F24°C
Clear

Wind

SSW 5 mph8 km/h

Humidity

34%

Cloud Cover

0%

As of Wednesday, September 2, 2026 at 10:44 AM PDT

Today's Outlook

Day

Mostly clear and warm, with a high of 81°F27°C and morning low of 65°F19°C. Breezy from the SW at 5 to 7 mph8 to 12 km/h. Dry air.

Night

Mostly clear, with a low around 60°F16°C. Light wind from the SSW around 2 mph4 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ClearHigh 81°F27°CLow 60°F16°CPrecip 0 in0 mmCloud 1%Wind SSW 4 mph6 km/hWednesday: Mostly clear and warm, with a high of 81°F27°C and morning low of 65°F19°C. Breezy from the SW at 5 to 7 mph8 to 12 km/h. Dry air. Wednesday Night: Mostly clear, with a low around 60°F16°C. Light wind from the SSW around 2 mph4 km/h.
ClearHigh 80°F27°CLow 61°F16°CPrecip 0 in0 mmCloud 3%Wind SSW 4 mph6 km/hThursday: Mostly clear and warm, with a high of 80°F27°C and morning low of 65°F18°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. Dry air. Thursday Night: Mostly clear, with a low around 61°F16°C. Light wind from the SSW around 2 mph4 km/h.
ClearHigh 81°F27°CLow 61°F16°CPrecip 0 in0 mmCloud 9%Wind SSW 3 mph5 km/hFriday: Mostly clear and warm, with a high of 81°F27°C and morning low of 65°F18°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. Friday Night: Mostly clear, with a low around 61°F16°C. Light wind from the SSW around 2 mph3 km/h.
ClearHigh 85°F30°CLow 61°F16°CPrecip 0.01 in0.2 mm6%Cloud 10%Wind SSW 3 mph5 km/hSaturday: Mostly clear and warm, with a high of 85°F30°C and morning low of 68°F20°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. Dry air. Saturday Night: Mostly clear, with a low around 61°F16°C. Light wind from the WSW around 2 mph3 km/h.
ShowersHigh 81°F27°CLow 67°F19°CPrecip 0.15 in3.7 mm33%Cloud 27%Wind SW 3 mph5 km/hSunday: Partly cloudy and warm, with a high of 81°F27°C and morning low of 69°F21°C. Light wind from the SSW around 5 mph7 km/h. 33% chance of showers throughout the day. Sunday Night: Mostly clear, with a low around 67°F19°C. Light wind from the SW around 2 mph3 km/h. 25% chance of drizzle throughout the night.
ClearHigh 85°F30°CLow 63°F17°CPrecip 0 in0 mmCloud 13%Wind SW 3 mph5 km/hMonday: Mostly clear and warm, with a high of 85°F30°C and morning low of 69°F20°C. Light wind from the SW around 4 mph7 km/h. Dry air. Monday Night: Mostly clear, with a low around 63°F17°C. Light wind from the SW around 2 mph3 km/h.
ClearHigh 87°F31°CLow 63°F17°CPrecip 0.03 in0.7 mm5%Cloud 23%Wind SW 3 mph5 km/hTuesday: Mostly clear and hot, with a high of 87°F31°C and morning low of 68°F20°C. Light wind from the SW around 4 mph7 km/h. Dry air. Tuesday Night: Mostly clear, with a low around 63°F17°C. Light wind from the WSW around 2 mph3 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 281°F27°C60°F16°C0 in0 mm· —1%ClearSSW 4 mph6 km/h
ThursdaySep 380°F27°C61°F16°C0 in0 mm· —3%ClearSSW 4 mph6 km/h
FridaySep 481°F27°C61°F16°C0 in0 mm· —9%ClearSSW 3 mph5 km/h
SaturdaySep 585°F30°C61°F16°C0.01 in0.2 mm· 6%10%ClearSSW 3 mph5 km/h
SundaySep 681°F27°C67°F19°C0.15 in3.7 mm· 33%27%ShowersSW 3 mph5 km/h
MondaySep 785°F30°C63°F17°C0 in0 mm· —13%ClearSW 3 mph5 km/h
TuesdaySep 887°F31°C63°F17°C0.03 in0.7 mm· 5%23%ClearSW 3 mph5 km/h
WednesdaySep 987°F31°C65°F18°C0.02 in0.4 mm· 5%24%ClearSSW 3 mph5 km/h
ThursdaySep 1086°F30°C66°F19°C0.01 in0.2 mm· 4%21%ClearSW 3 mph5 km/h
FridaySep 1185°F30°C65°F19°C0.04 in1 mm· 6%26%ClearSSW 3 mph5 km/h
SaturdaySep 1283°F28°C66°F19°C0.15 in3.8 mm· 12%38%ShowersSSW 3 mph6 km/h
SundaySep 1383°F28°C65°F19°C0.06 in1.6 mm· 11%41%DrizzleSW 3 mph5 km/h
MondaySep 1483°F29°C66°F19°C0.08 in2.1 mm· 11%35%DrizzleSSW 3 mph5 km/h
TuesdaySep 1584°F29°C65°F18°C0.05 in1.3 mm· 10%27%DrizzleSW 3 mph5 km/h
WednesdaySep 1685°F30°C66°F19°C0.02 in0.5 mm· 5%23%ClearSW 3 mph5 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 34.0775°N, 117.6898°W·Elevation: 325m·Timezone: America/Los_Angeles·Population: 38,690