10-day forecast for Simi Valley, CA: 51° to 80°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
80°
Best day: Tuesday, November 3
68° · 0.27 in
Worst day: Saturday, October 31
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 3168° / 59°0.27
Morning62°feels 63°
Afternoon67°feels 66°
Evening59°feels 60°
Overnight60°feels 60°
68 °
Simi Valley, Saturday, 31 October
Rain. High 68°, low 59°.
Pressure29.94 inHg
Wind6.7 mph SE
Humidity65%
Visibility6.2 mi
Dew point53°
Sun, 0169° / 56°0.2
Morning58°feels 59°
Afternoon69°feels 68°
Evening59°feels 58°
Overnight59°feels 60°
69 °
Simi Valley, Sunday, 1 November
Rain. High 69°, low 56°.
Pressure29.88 inHg
Wind6 mph SW
Humidity65%
Visibility6.2 mi
Dew point54°
Mon, 0275° / 52°0
Morning54°feels 52°
Afternoon75°feels 74°
Evening62°feels 61°
Overnight54°feels 53°
75 °
Simi Valley, Monday, 2 November
Clear. High 75°, low 52°.
Pressure30.09 inHg
Wind11.9 mph NE
Humidity36%
Visibility6.2 mi
Dew point42°
Tue, 0380° / 58°0
Morning63°feels 61°
Afternoon75°feels 74°
Evening75°feels 74°
Overnight58°feels 56°
80 °
Simi Valley, Tuesday, 3 November
Clear. High 80°, low 58°.
Pressure30.09 inHg
Wind10.6 mph NE
Humidity30%
Visibility—
Dew point39°
Wed, 0469° / 55°0
Morning58°feels 56°
Afternoon65°feels 64°
Evening63°feels 62°
Overnight56°feels 56°
69 °
Simi Valley, Wednesday, 4 November
Partly cloudy. High 69°, low 55°.
Pressure29.94 inHg
Wind15.1 mph W
Humidity62%
Visibility—
Dew point51°
Thu, 0568° / 54°0
Morning57°feels 55°
Afternoon65°feels 63°
Evening64°feels 63°
Overnight57°feels 55°
68 °
Simi Valley, Thursday, 5 November
Overcast. High 68°, low 54°.
Pressure29.91 inHg
Wind6 mph SW
Humidity47%
Visibility—
Dew point42°
Fri, 0666° / 51°0.06
Morning53°feels 51°
Afternoon60°feels 58°
Evening60°feels 57°
Overnight51°feels 49°
66 °
Simi Valley, Friday, 6 November
Light rain. High 66°, low 51°.
Pressure29.80 inHg
Wind14.2 mph NE
Humidity40%
Visibility—
Dew point34°
Sat, 0770° / 51°0
Morning56°feels 53°
Afternoon66°feels 64°
Evening65°feels 63°
Overnight55°feels 53°
70 °
Simi Valley, Saturday, 7 November
Clear. High 70°, low 51°.
Pressure30.00 inHg
Wind9.5 mph W
Humidity28%
Visibility—
Dew point30°
Sun, 0868° / 55°0
Morning58°feels 56°
Afternoon65°feels 63°
Evening65°feels 63°
Overnight55°feels 54°
68 °
Simi Valley, Sunday, 8 November
Overcast. High 68°, low 55°.
Pressure30.03 inHg
Wind8.2 mph W
Humidity53%
Visibility—
Dew point46°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Simi Valley, CA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.