As of 08:31 PDT

Weather in Simi Valley, CA

79°Current weather

Simi Valley, Friday, 16 October, 08:31

Clear. Feels like 79°. High 92°, low 72°.

Pressure30.06 inHg
Wind24 mph NE
Humidity25%
Visibility6.2 mi
Dew point40°

Monthly outlook for Simi Valley, CA: average high 75.7°, average low 59.2°. That is 1° below the climate normal for October. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 1 days and 0.4 inches. The warmest day looks like 16 October (92.1°), the coolest 30 October (53.1°).

75.7°/59.2°
Average high / low
−1°
Below normal
2 / 1
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October78.3°78.5°-0.1°
26 October – 4 November71.3°75.6°-2.4°
5 November – 14 Novemberat normal72°—

October records over 66 years

106.2°1 October 2020All-time high
35.1°29 October 1971All-time low
Sat, 1791° / 74°0Overcast
91 °Overcast

Simi Valley, Saturday, 17 October

Overcast. High 91°, low 74°.

Pressure30.03 inHg
Wind13.4 mph NE
Humidity14%
Visibility6.2 mi
Dew point32°
Sun, 1889° / 62°0Clear
89 °Clear

Simi Valley, Sunday, 18 October

Clear. High 89°, low 62°.

Pressure29.94 inHg
Wind5.6 mph NE
Humidity14%
Visibility6.2 mi
Dew point32°
Mon, 1984° / 61°0Clear
84 °Clear

Simi Valley, Monday, 19 October

Clear. High 84°, low 61°.

Pressure29.88 inHg
Wind4.1 mph S
Humidity20%
Visibility6.2 mi
Dew point38°
Tue, 2072° / 58°0Light rain
72 °Light rain

Simi Valley, Tuesday, 20 October

Light rain. High 72°, low 58°.

Pressure29.88 inHg
Wind7.9 mph S
Humidity47%
Visibility—
Dew point46°
Wed, 2167° / 57°0.61Rain
67 °Rain

Simi Valley, Wednesday, 21 October

Rain. High 67°, low 57°.

Pressure29.94 inHg
Wind6.7 mph SE
Humidity83%
Visibility—
Dew point56°
Thu, 2269° / 58°0.21Light rain
69 °Light rain

Simi Valley, Thursday, 22 October

Light rain. High 69°, low 58°.

Pressure29.94 inHg
Wind11.7 mph W
Humidity55%
Visibility—
Dew point48°
Fri, 2371° / 57°0.02Light rain
71 °Light rain

Simi Valley, Friday, 23 October

Light rain. High 71°, low 57°.

Pressure30.00 inHg
Wind9.3 mph SW
Humidity60%
Visibility—
Dew point50°
Sat, 2472° / 56°0.02Light rain
72 °Light rain

Simi Valley, Saturday, 24 October

Light rain. High 72°, low 56°.

Pressure30.00 inHg
Wind12.5 mph W
Humidity46%
Visibility—
Dew point42°
Sun, 2576° / 57°0Clear
76 °Clear

Simi Valley, Sunday, 25 October

Clear. High 76°, low 57°.

Pressure30.00 inHg
Wind10.8 mph W
Humidity34%
Visibility—
Dew point38°
Mon, 2673° / 60°0Overcast
73 °Overcast

Simi Valley, Monday, 26 October

Overcast. High 73°, low 60°.

Pressure29.80 inHg
Wind11.8 mph SW
Humidity41%
Visibility—
Dew point44°
Tue, 2772° / 55°0Clear
72 °Clear

Simi Valley, Tuesday, 27 October

Clear. High 72°, low 55°.

Pressure29.80 inHg
Wind8.9 mph W
Humidity33%
Visibility—
Dew point35°
Wed, 2873° / 58°0Clear
73 °Clear

Simi Valley, Wednesday, 28 October

Clear. High 73°, low 58°.

Pressure29.97 inHg
Wind9.2 mph W
Humidity38%
Visibility—
Dew point40°
Thu, 2967° / 55°0.02Light rain
67 °Light rain

Simi Valley, Thursday, 29 October

Light rain. High 67°, low 55°.

Pressure29.85 inHg
Wind7.2 mph NE
Humidity62%
Visibility—
Dew point50°
Fri, 3071° / 53°0Clear
71 °Clear

Simi Valley, Friday, 30 October

Clear. High 71°, low 53°.

Pressure29.97 inHg
Wind12.6 mph W
Humidity41%
Visibility—
Dew point39°
Sat, 3171° / 55°0Clear
71 °Clear

Simi Valley, Saturday, 31 October

Clear. High 71°, low 55°.

Pressure30.06 inHg
Wind10.3 mph W
Humidity56%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0176° / 53°0.04Climate normal
76 °Climate normal

Simi Valley, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high76°
Average low53°
Average precipitation0.04 in
Chance of precipitation8%
Record high91° (1997)
Record low42° (2000)
Mon, 0276° / 52°0.01Climate normal
76 °Climate normal

Simi Valley, Monday, 2 November

Climate normal for this date — 60-year average.

Average high76°
Average low52°
Average precipitation0.01 in
Chance of precipitation8%
Record high91° (1997)
Record low43° (2003)
Tue, 0376° / 51°0Climate normal
76 °Climate normal

Simi Valley, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high76°
Average low51°
Average precipitation0 in
Chance of precipitation8%
Record high91° (2018)
Record low39° (1994)
Wed, 0476° / 52°0.02Climate normal
76 °Climate normal

Simi Valley, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high76°
Average low52°
Average precipitation0.02 in
Chance of precipitation7%
Record high94° (2020)
Record low38° (1994)
Thu, 0574° / 51°0.01Climate normal
74 °Climate normal

Simi Valley, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high74°
Average low51°
Average precipitation0.01 in
Chance of precipitation3%
Record high92° (2020)
Record low39° (2011)
Fri, 0673° / 52°0.03Climate normal
73 °Climate normal

Simi Valley, Friday, 6 November

Climate normal for this date — 60-year average.

Average high73°
Average low52°
Average precipitation0.03 in
Chance of precipitation8%
Record high89° (2006)
Record low44° (1973)
Sat, 0772° / 52°0.07Climate normal
72 °Climate normal

Simi Valley, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high72°
Average low52°
Average precipitation0.07 in
Chance of precipitation17%
Record high91° (2006)
Record low37° (2011)
Sun, 0872° / 51°0.08Climate normal
72 °Climate normal

Simi Valley, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high72°
Average low51°
Average precipitation0.08 in
Chance of precipitation17%
Record high89° (2025)
Record low40° (2011)
Mon, 0971° / 50°0.04Climate normal
71 °Climate normal

Simi Valley, Monday, 9 November

Climate normal for this date — 60-year average.

Average high71°
Average low50°
Average precipitation0.04 in
Chance of precipitation10%
Record high88° (2016)
Record low41° (2011)
Tue, 1071° / 50°0.03Climate normal
71 °Climate normal

Simi Valley, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high71°
Average low50°
Average precipitation0.03 in
Chance of precipitation12%
Record high90° (2025)
Record low40° (2000)
Wed, 1171° / 50°0.06Climate normal
71 °Climate normal

Simi Valley, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high71°
Average low50°
Average precipitation0.06 in
Chance of precipitation12%
Record high86° (2019)
Record low37° (2000)
Thu, 1272° / 50°0.04Climate normal
72 °Climate normal

Simi Valley, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high72°
Average low50°
Average precipitation0.04 in
Chance of precipitation8%
Record high87° (2021)
Record low35° (1978)
Fri, 1372° / 49°0.03Climate normal
72 °Climate normal

Simi Valley, Friday, 13 November

Climate normal for this date — 60-year average.

Average high72°
Average low49°
Average precipitation0.03 in
Chance of precipitation10%
Record high89° (2021)
Record low34° (1985)
Sat, 1472° / 49°0.05Climate normal
72 °Climate normal

Simi Valley, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high72°
Average low49°
Average precipitation0.05 in
Chance of precipitation10%
Record high91° (2021)
Record low36° (2000)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Simi Valley, CA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Simi Valley, CA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.