Current Conditions

Simi Valley, California

68°F20°C
Clear

Wind

ENE 2 mph3 km/h

Humidity

74%

Cloud Cover

1%

As of Wednesday, September 23, 2026 at 12:17 AM PDT

Today's Outlook

Day

Mostly clear and hot, with a high of 86°F30°C and morning low of 68°F20°C. Light wind from the SW around 4 mph7 km/h.

Night

Mostly clear, with a low around 64°F18°C. Light wind from the NE around 2 mph4 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ClearHigh 86°F30°CLow 64°F18°CPrecip 0 in0 mmCloud 4%Wind SSW 3 mph5 km/hWednesday: Mostly clear and hot, with a high of 86°F30°C and morning low of 68°F20°C. Light wind from the SW around 4 mph7 km/h. Wednesday Night: Mostly clear, with a low around 64°F18°C. Light wind from the NE around 2 mph4 km/h.
ClearHigh 84°F29°CLow 66°F19°CPrecip 0 in0 mmCloud 10%Wind SW 3 mph5 km/hThursday: Mostly clear and warm, with a high of 84°F29°C and morning low of 69°F20°C. Light wind from the SW around 4 mph7 km/h. Thursday Night: Mostly clear, with a low around 66°F19°C. Light wind from the N around 2 mph3 km/h.
ClearHigh 85°F30°CLow 66°F19°CPrecip 0 in0 mmCloud 32%Wind WSW 3 mph5 km/hFriday: Partly cloudy and warm, with a high of 85°F30°C and morning low of 70°F21°C. Light wind from the SW around 4 mph7 km/h. Friday Night: Partly cloudy, with a low around 66°F19°C. Light wind from the NW around 2 mph3 km/h.
Partly CloudyHigh 86°F30°CLow 66°F19°CPrecip 0 in0 mmCloud 63%Wind SW 3 mph5 km/hSaturday: Mostly cloudy and warm, with a high of 86°F30°C and morning low of 69°F20°C. Breezy from the SSW at 5 to 7 mph7 to 11 km/h. Saturday Night: Mostly cloudy, with a low around 66°F19°C. Light wind from the N around 2 mph3 km/h.
DrizzleHigh 79°F26°CLow 67°F20°CPrecip 0.02 in0.4 mm12%Cloud 46%Wind SSW 3 mph6 km/hSunday: Partly cloudy and warm, with a high of 79°F26°C and morning low of 70°F21°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. 12% chance of drizzle in the afternoon. Sunday Night: Mostly cloudy, with a low around 67°F20°C. Light wind from the WNW around 2 mph3 km/h.
ClearHigh 81°F27°CLow 63°F17°CPrecip 0.02 in0.4 mm7%Cloud 25%Wind WSW 3 mph5 km/hMonday: Partly cloudy and warm, with a high of 81°F27°C and morning low of 66°F19°C. Light wind from the SW around 4 mph7 km/h. Monday Night: Partly cloudy, with a low around 63°F17°C. Light wind from the NNW around 2 mph4 km/h.
ClearHigh 86°F30°CLow 62°F17°CPrecip 0.04 in1 mm9%Cloud 13%Wind N 4 mph6 km/hTuesday: Mostly clear and warm, with a high of 86°F30°C and morning low of 66°F19°C. Light wind from the W around 5 mph8 km/h. Dry air. Tuesday Night: Mostly clear, with a low around 62°F17°C. Light wind from the N around 3 mph5 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2386°F30°C64°F18°C0 in0 mm· —4%ClearSSW 3 mph5 km/h
ThursdaySep 2484°F29°C66°F19°C0 in0 mm· —10%ClearSW 3 mph5 km/h
FridaySep 2585°F30°C66°F19°C0 in0 mm· —32%ClearWSW 3 mph5 km/h
SaturdaySep 2686°F30°C66°F19°C0 in0 mm· —63%Partly CloudySW 3 mph5 km/h
SundaySep 2779°F26°C67°F20°C0.02 in0.4 mm· 12%46%DrizzleSSW 3 mph6 km/h
MondaySep 2881°F27°C63°F17°C0.02 in0.4 mm· 7%25%ClearWSW 3 mph5 km/h
TuesdaySep 2986°F30°C62°F17°C0.04 in1 mm· 9%13%ClearN 4 mph6 km/h
WednesdaySep 3088°F31°C65°F18°C0.04 in1.1 mm· 5%21%ClearN 4 mph6 km/h
ThursdayOct 187°F31°C66°F19°C0.03 in0.8 mm· 5%34%ClearWNW 4 mph6 km/h
FridayOct 287°F31°C66°F19°C0.02 in0.5 mm· 5%27%ClearWNW 4 mph6 km/h
SaturdayOct 387°F31°C66°F19°C0.02 in0.4 mm· 5%19%ClearN 4 mph6 km/h
SundayOct 487°F30°C66°F19°C0.04 in1.1 mm· 6%21%ClearNNW 4 mph6 km/h
MondayOct 586°F30°C66°F19°C0.04 in1.1 mm· 8%21%ClearNNW 4 mph6 km/h
TuesdayOct 687°F31°C66°F19°C0.03 in0.8 mm· 5%17%ClearNNW 4 mph6 km/h
WednesdayOct 788°F31°C66°F19°C0.01 in0.2 mm· 3%16%ClearNNW 4 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