Current Conditions

Simi Valley, California

86°F30°C
Drizzle

Wind

WNW 6 mph10 km/h

Humidity

43%

Cloud Cover

74%

As of Tuesday, September 8, 2026 at 4:53 PM PDT

Today's Outlook

Day

Mostly cloudy and hot, with a high of 88°F31°C. Light wind from the W around 4 mph7 km/h. 21% chance of drizzle in the afternoon.

Night

Mostly clear, with a low around 78°F25°C. Light wind from the NNW around 4 mph6 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 88°F31°CLow 78°F25°CPrecip 0.01 in0.2 mm21%Cloud 53%Wind WNW 4 mph7 km/hTuesday: Mostly cloudy and hot, with a high of 88°F31°C. Light wind from the W around 4 mph7 km/h. 21% chance of drizzle in the afternoon. Tuesday Night: Mostly clear, with a low around 78°F25°C. Light wind from the NNW around 4 mph6 km/h.
DrizzleHigh 98°F37°CLow 73°F23°CPrecip 0 in0.1 mm11%Cloud 15%Wind NW 4 mph7 km/hWednesday: Mostly clear and hot, with a high of 98°F37°C and morning low of 78°F26°C. Light wind from the W around 5 mph8 km/h. 11% chance of drizzle. Heat risk in the afternoon. Wednesday Night: Mostly clear, with a low around 73°F23°C. Light wind from the N around 4 mph6 km/h.
ClearHigh 93°F34°CLow 77°F25°CPrecip 0 in0 mmCloud 14%Wind S 4 mph7 km/hThursday: Mostly clear and hot, with a high of 93°F34°C and morning low of 80°F27°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. Thursday Night: Mostly clear, with a low around 77°F25°C. Light wind from the E around 3 mph5 km/h.
ClearHigh 88°F31°CLow 73°F23°CPrecip 0 in0 mmCloud 3%Wind SSW 4 mph6 km/hFriday: Mostly clear and hot, with a high of 88°F31°C and morning low of 76°F25°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. Humid. Friday Night: Mostly clear, with a low around 73°F23°C. Light wind from the SE around 2 mph4 km/h.
ClearHigh 85°F29°CLow 70°F21°CPrecip 0 in0 mmCloud 10%Wind SSW 3 mph5 km/hSaturday: Mostly clear and warm, with a high of 85°F29°C and morning low of 72°F22°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. Saturday Night: Mostly clear, with a low around 70°F21°C. Light wind from the S around 2 mph3 km/h.
ClearHigh 86°F30°CLow 67°F20°CPrecip 0 in0 mmCloud 11%Wind SSW 3 mph5 km/hSunday: Mostly clear and warm, with a high of 86°F30°C and morning low of 71°F22°C. Light wind from the SW around 4 mph7 km/h. Sunday Night: Mostly clear, with a low around 67°F20°C. Light wind from the ESE around 2 mph3 km/h.
ClearHigh 85°F29°CLow 67°F19°CPrecip 0 in0 mmCloud 9%Wind SSW 4 mph6 km/hMonday: Mostly clear and warm, with a high of 85°F29°C and morning low of 70°F21°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. Monday Night: Mostly clear, with a low around 67°F19°C. Light wind from the ESE around 2 mph4 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
TuesdaySep 888°F31°C78°F25°C0.01 in0.2 mm· 21%53%DrizzleWNW 4 mph7 km/h
WednesdaySep 998°F37°C73°F23°C0 in0.1 mm· 11%15%DrizzleNW 4 mph7 km/h
ThursdaySep 1093°F34°C77°F25°C0 in0 mm· —14%ClearS 4 mph7 km/h
FridaySep 1188°F31°C73°F23°C0 in0 mm· —3%ClearSSW 4 mph6 km/h
SaturdaySep 1285°F29°C70°F21°C0 in0 mm· —10%ClearSSW 3 mph5 km/h
SundaySep 1386°F30°C67°F20°C0 in0 mm· —11%ClearSSW 3 mph5 km/h
MondaySep 1485°F29°C67°F19°C0 in0 mm· —9%ClearSSW 4 mph6 km/h
TuesdaySep 1582°F28°C66°F19°C0 in0.1 mm· 4%24%ClearS 3 mph6 km/h
WednesdaySep 1681°F27°C65°F18°C0 in0.1 mm· 2%26%ClearSSW 3 mph5 km/h
ThursdaySep 1781°F27°C64°F18°C0.01 in0.2 mm· 2%23%ClearSW 3 mph5 km/h
FridaySep 1884°F29°C64°F18°C0.02 in0.5 mm· 1%25%ClearWSW 3 mph5 km/h
SaturdaySep 1984°F29°C65°F18°C0.01 in0.2 mm· 2%31%ClearWSW 3 mph5 km/h
SundaySep 2083°F29°C65°F19°C0 in0.1 mm· 2%32%ClearSW 3 mph5 km/h
MondaySep 2182°F28°C65°F18°C0.01 in0.2 mm· 3%28%ClearSW 3 mph5 km/h
TuesdaySep 2282°F28°C65°F18°C0.01 in0.3 mm· 5%33%ClearSW 3 mph6 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: 34.2694°N, 118.7815°W·Elevation: 234m·Timezone: America/Los_Angeles·Population: 126,788