Simi Valley, CA Weather Forecast
Local 7-day forecast
Mostly Sunny then Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Simi Valley, CA in one place.
A slight chance of rain showers after 5pm. Mostly sunny, with a high near 70. Southwest wind 0 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Simi Valley, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 9, 2026 1:23 PM PDT.
The active forecast window currently covers Apr 10 to Apr 15, 2026 for Simi Valley, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 1:23 PM PDT
- Forecast office
- LOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Simi Valley
Wednesday looks like the warmest upcoming period in Simi Valley at 74 degrees F.
Sunday Night is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Friday at about 0 to 15 mph SW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 1:23 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- LOX
- Radar station
- KVTX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of rain showers before 5am. Mostly cloudy, with a low around 50. Southwest wind 0 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain after 5pm. Partly sunny, with a high near 64. Southwest wind 0 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain before 11pm, then rain likely and a slight chance of thunderstorms between 11pm and 5am, then rain showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Rain showers likely before 5pm, then a slight chance of rain. Partly sunny, with a high near 62.
A slight chance of rain before 11pm. Partly cloudy, with a low around 44.
Sunny, with a high near 66.
Mostly clear, with a low around 45.
Sunny, with a high near 70.
Mostly clear, with a low around 48.
Mostly sunny, with a high near 74.
Mostly cloudy, with a low around 51.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Mostly Sunny then Slight Chance Rain Showers
|
70°F |
0 to 15 mph
SW
|
|
Friday Night
Apr 10
|
Slight Chance Rain Showers
|
50°F |
0 to 15 mph
SW
|
|
Saturday
Apr 11
|
Partly Sunny then Chance Light Rain
|
64°F |
0 to 15 mph
SW
|
|
Saturday Night
Apr 11
|
Rain Likely
|
48°F |
5 to 10 mph
SSW
|
|
Sunday
Apr 12
|
Rain Showers Likely
|
62°F |
10 to 15 mph
WSW
|
|
Sunday Night
Apr 12
|
Slight Chance Light Rain then Partly Cloudy
|
44°F |
5 to 15 mph
W
|
|
Monday
Apr 13
|
Sunny
|
66°F |
5 to 15 mph
WNW
|
|
Monday Night
Apr 13
|
Mostly Clear
|
45°F |
5 to 15 mph
NNW
|
|
Tuesday
Apr 14
|
Sunny
|
70°F |
5 to 15 mph
SSW
|
|
Tuesday Night
Apr 14
|
Mostly Clear
|
48°F |
0 to 15 mph
NW
|
|
Wednesday
Apr 15
|
Mostly Sunny
|
74°F |
5 to 10 mph
S
|
|
Wednesday Night
Apr 15
|
Mostly Cloudy
|
51°F |
0 to 10 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Simi Valley.
