As of 18:31 PDT

Weather in Simi Valley, CA

86°Current weather

Simi Valley, Friday, 16 October, 18:31

Clear. Feels like 83°. High 92°, low 72°.

Pressure30.00 inHg
Wind5 mph NE
Humidity20%
Visibility6.2 mi
Dew point41°

Monthly outlook for Simi Valley, CA: average high 77°, average low 60.5°. That is 0.2° below the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 1 days and 0.4 inches. The warmest day looks like 16 October (91.5°), the coolest 22 October (54.4°).

77°/60.5°
Average high / low
−0.2°
Below normal
2 / 1
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October79.1°78.5°+0.3°
26 October – 4 November73.6°75.6°-1.1°
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° / 78°0Clear
91 °Clear

Simi Valley, Saturday, 17 October

Clear. High 91°, low 78°.

Pressure30.06 inHg
Wind12.3 mph NE
Humidity14%
Visibility6.2 mi
Dew point32°
Sun, 1889° / 69°0Clear
89 °Clear

Simi Valley, Sunday, 18 October

Clear. High 89°, low 69°.

Pressure29.97 inHg
Wind6.1 mph NE
Humidity15%
Visibility6.2 mi
Dew point33°
Mon, 1985° / 61°0Clear
85 °Clear

Simi Valley, Monday, 19 October

Clear. High 85°, low 61°.

Pressure29.91 inHg
Wind4.8 mph SW
Humidity22%
Visibility6.2 mi
Dew point41°
Tue, 2078° / 60°0Mostly clear
78 °Mostly clear

Simi Valley, Tuesday, 20 October

Mostly clear. High 78°, low 60°.

Pressure29.88 inHg
Wind5.1 mph SE
Humidity50%
Visibility6.2 mi
Dew point53°
Wed, 2169° / 57°0.23Rain
69 °Rain

Simi Valley, Wednesday, 21 October

Rain. High 69°, low 57°.

Pressure29.91 inHg
Wind6.4 mph S
Humidity48%
Visibility—
Dew point47°
Thu, 2271° / 54°0Light rain
71 °Light rain

Simi Valley, Thursday, 22 October

Light rain. High 71°, low 54°.

Pressure29.97 inHg
Wind10.9 mph SW
Humidity56%
Visibility—
Dew point49°
Fri, 2372° / 58°0Mostly clear
72 °Mostly clear

Simi Valley, Friday, 23 October

Mostly clear. High 72°, low 58°.

Pressure30.00 inHg
Wind10 mph W
Humidity60%
Visibility—
Dew point51°
Sat, 2472° / 56°0Light rain
72 °Light rain

Simi Valley, Saturday, 24 October

Light rain. High 72°, low 56°.

Pressure29.91 inHg
Wind15.1 mph SW
Humidity42%
Visibility—
Dew point41°
Sun, 2572° / 56°0Partly cloudy
72 °Partly cloudy

Simi Valley, Sunday, 25 October

Partly cloudy. High 72°, low 56°.

Pressure30.06 inHg
Wind7.8 mph W
Humidity48%
Visibility—
Dew point45°
Mon, 2679° / 61°0Overcast
79 °Overcast

Simi Valley, Monday, 26 October

Overcast. High 79°, low 61°.

Pressure29.94 inHg
Wind14.5 mph NE
Humidity24%
Visibility—
Dew point33°
Tue, 2781° / 60°0.02Light rain
81 °Light rain

Simi Valley, Tuesday, 27 October

Light rain. High 81°, low 60°.

Pressure29.80 inHg
Wind11.2 mph NE
Humidity21%
Visibility—
Dew point31°
Wed, 2867° / 56°0.28Rain
67 °Rain

Simi Valley, Wednesday, 28 October

Rain. High 67°, low 56°.

Pressure29.71 inHg
Wind11.8 mph W
Humidity51%
Visibility—
Dew point45°
Thu, 2966° / 56°0Overcast
66 °Overcast

Simi Valley, Thursday, 29 October

Overcast. High 66°, low 56°.

Pressure30.00 inHg
Wind5.8 mph S
Humidity60%
Visibility—
Dew point48°
Fri, 3073° / 55°0Overcast
73 °Overcast

Simi Valley, Friday, 30 October

Overcast. High 73°, low 55°.

Pressure30.03 inHg
Wind5.7 mph E
Humidity40%
Visibility—
Dew point40°
Sat, 3176° / 61°0Overcast
76 °Overcast

Simi Valley, Saturday, 31 October

Overcast. High 76°, low 61°.

Pressure30.03 inHg
Wind6 mph S
Humidity32%
Visibility—
Dew point39°
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.