Simi Valley weather in September 2025
Mon
Tue
Wed
Thu
Fri
Sat
Sun
31 August
+31°+20°
1 September
+31°+20°
2 September
+31°+21°
3 September
+31°+20°
4 September
+31°+21°
5 September
+32°+20°
6 September
+32°+21°
7 September
+31°+21°
8 September
+30°+20°
9 September
+29°+20°
10 September
+29°+20°
11 September
+30°+19°
12 September
+30°+19°
13 September
+30°+18°
14 September
+30°+19°
15 September
+29°+19°
16 September
+28°+18°
17 September
+29°+17°
18 September
+29°+18°
19 September
+29°+18°
20 September
+28°+18°
21 September
+27°+18°
22 September
+29°+18°
23 September
+30°+18°
24 September
+30°+19°
25 September
+30°+18°
26 September
+31°+18°
27 September
+30°+19°
28 September
+29°+18°
29 September
+30°+18°
30 September
+30°+18°
1 October
+29°+18°
2 October
+28°+18°
3 October
+27°+16°
4 October
+26°+16°
Forecast in other regions
New York
+26°
Los Angeles
+24°
Chicago
+23°
Houston
+32°
Queens
+26°
Phoenix
+37°
Philadelphia
+25°
San Antonio
+31°
San Diego
+23°
The Bronx
+24°
Dallas
+35°
San Jose
+23°
Austin
+31°
Detroit
+19°
Jacksonville
+30°
Fort Worth
+34°
Columbus
+20°
Indianapolis
+22°
Charlotte
+28°
San Francisco
+18°
