Weather in Simi Valley, CA
Simi Valley, Sunday, 25 October, 09:46
Clear. Feels like 69°. High 80°, low 56°.
Monthly outlook for Simi Valley, CA: average high 72.6°, average low 55.8°. That is 1.2° below the climate normal for October. Precipitation is expected on 2 days (about 2.2 inches), against a normal of 1 days and 0.5 inches. The warmest day looks like 26 October (81.4°), the coolest 2 November (50.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 72.9° | 75.8° | -1.6° |
| 4 November – 13 November | 72.2° | 72.4° | -0.1° |
| 14 November – 23 November | at normal | 69.5° | — |
October records over 66 years
0Simi Valley, Monday, 26 October
Clear. High 81°, low 59°.
0Simi Valley, Tuesday, 27 October
Clear. High 76°, low 54°.
0
Simi Valley, Wednesday, 28 October
Mostly clear. High 75°, low 53°.
0
Simi Valley, Thursday, 29 October
Partly cloudy. High 74°, low 58°.
0
Simi Valley, Friday, 30 October
Overcast. High 70°, low 56°.
0
Simi Valley, Saturday, 31 October
Light rain. High 67°, low 56°.
1.72Simi Valley, Sunday, 1 November
Heavy rain. High 65°, low 54°.
0Simi Valley, Monday, 2 November
Overcast. High 66°, low 50°.
0Simi Valley, Tuesday, 3 November
Overcast. High 74°, low 56°.
0Simi Valley, Wednesday, 4 November
Overcast. High 67°, low 54°.
0Simi Valley, Thursday, 5 November
Overcast. High 68°, low 54°.
0.49Simi Valley, Friday, 6 November
Rain. High 67°, low 57°.
0Simi Valley, Saturday, 7 November
Partly cloudy. High 71°, low 56°.
0Simi Valley, Sunday, 8 November
Clear. High 79°, low 60°.
0Simi Valley, Monday, 9 November
Clear. High 80°, low 63°.
0.03Simi Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Simi Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.04Simi Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03Simi Valley, Friday, 13 November
Climate normal for this date — 60-year average.
0.05Simi Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Simi Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Simi Valley, Monday, 16 November
Climate normal for this date — 60-year average.
0.05Simi Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.04Simi Valley, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.04Simi Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07Simi Valley, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Simi Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
0.05Simi Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
0.01Simi Valley, Monday, 23 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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