Simi Valley, CA Weather Forecast
Local 7-day forecast
Patchy Fog then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Simi Valley, CA in one place.
Patchy fog before 11am. Mostly sunny, with a high near 71. South southwest wind 0 to 15 mph, with gusts as high as 20 mph.
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: May 24, 2026 11:13 AM PDT.
The active forecast window currently covers May 25 to May 30, 2026 for Simi Valley, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 25 to May 30, 2026
- Latest sync
- May 24, 2026 11:13 AM PDT
- Forecast office
- LOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Simi Valley
Saturday looks like the warmest upcoming period in Simi Valley at 75 degrees F.
Monday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Memorial Day at about 0 to 15 mph SSW.
The forecast from May 25 through May 30 stays mostly dry.
Forecast Details
- Last updated
- May 24, 2026 11:13 AM 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
Patchy fog after 11pm. Mostly cloudy, with a low around 47. South wind 0 to 10 mph, with gusts as high as 20 mph.
Patchy fog before 11am. Partly sunny, with a high near 68. South wind 5 to 10 mph, with gusts as high as 20 mph.
Patchy fog after 11pm. Mostly cloudy, with a low around 47.
Patchy fog before 11am. Partly sunny, with a high near 68.
Partly cloudy, with a low around 49.
Mostly sunny, with a high near 66.
Mostly clear, with a low around 49.
Sunny, with a high near 70.
Mostly clear, with a low around 51.
Sunny, with a high near 75.
Mostly clear, with a low around 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Memorial Day
May 25
|
Patchy Fog then Mostly Sunny
|
71°F |
0 to 15 mph
SSW
|
|
Monday Night
May 25
|
Patchy Fog
|
47°F |
0 to 10 mph
S
|
|
Tuesday
May 26
|
Patchy Fog then Partly Sunny
|
68°F |
5 to 10 mph
S
|
|
Tuesday Night
May 26
|
Patchy Fog
|
47°F |
5 to 10 mph
S
|
|
Wednesday
May 27
|
Patchy Fog then Partly Sunny
|
68°F |
5 to 15 mph
S
|
|
Wednesday Night
May 27
|
Partly Cloudy
|
49°F |
0 to 10 mph
S
|
|
Thursday
May 28
|
Mostly Sunny
|
66°F |
0 to 10 mph
S
|
|
Thursday Night
May 28
|
Mostly Clear
|
49°F |
0 to 10 mph
W
|
|
Friday
May 29
|
Sunny
|
70°F |
0 to 10 mph
SW
|
|
Friday Night
May 29
|
Mostly Clear
|
51°F |
0 to 10 mph
ENE
|
|
Saturday
May 30
|
Sunny
|
75°F |
0 to 10 mph
S
|
|
Saturday Night
May 30
|
Mostly Clear
|
53°F |
0 to 10 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Simi Valley.
