Weather in Lewiston, CA
Lewiston, Thursday, 22 October, 20:00
Overcast. Feels like 56°. High 57°, low 52°.
Monthly outlook for Lewiston, CA: average high 68.7°, average low 41.9°. That is 2.2° above the climate normal for October. Precipitation is expected on 1 day (about 0.7 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 3 November (79.2°), the coolest 30 October (33.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 64.4° | 65.9° | -0.8° |
| 1 November – 10 November | 76° | 61.1° | +8.3° |
| 11 November – 20 November | at normal | 55.8° | — |
October records over 66 years
0.01
Lewiston, Friday, 23 October
Light rain. High 66°, low 46°.
0
Lewiston, Saturday, 24 October
Mostly clear. High 75°, low 45°.
0Lewiston, Sunday, 25 October
Overcast. High 70°, low 46°.
0.02Lewiston, Monday, 26 October
Light rain. High 60°, low 42°.
0Lewiston, Tuesday, 27 October
Mostly clear. High 64°, low 41°.
0Lewiston, Wednesday, 28 October
Overcast. High 67°, low 40°.
0
Lewiston, Thursday, 29 October
Clear. High 59°, low 33°.
0Lewiston, Friday, 30 October
Clear. High 62°, low 33°.
0Lewiston, Saturday, 31 October
Clear. High 64°, low 34°.
0Lewiston, Sunday, 1 November
Clear. High 68°, low 36°.
0Lewiston, Monday, 2 November
Clear. High 75°, low 40°.
0
Lewiston, Tuesday, 3 November
Partly cloudy. High 79°, low 46°.
0Lewiston, Wednesday, 4 November
Partly cloudy. High 78°, low 46°.
0Lewiston, Thursday, 5 November
Overcast. High 79°, low 46°.
0Lewiston, Friday, 6 November
Overcast. High 78°, low 46°.
0.21
Lewiston, Saturday, 7 November
Climate normal for this date — 60-year average.
0.17Lewiston, Sunday, 8 November
Climate normal for this date — 60-year average.
0.22Lewiston, Monday, 9 November
Climate normal for this date — 60-year average.
0.21Lewiston, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.21Lewiston, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.15Lewiston, Thursday, 12 November
Climate normal for this date — 60-year average.
0.28Lewiston, Friday, 13 November
Climate normal for this date — 60-year average.
0.15Lewiston, Saturday, 14 November
Climate normal for this date — 60-year average.
0.19Lewiston, Sunday, 15 November
Climate normal for this date — 60-year average.
0.22Lewiston, Monday, 16 November
Climate normal for this date — 60-year average.
0.19Lewiston, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.12Lewiston, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.23Lewiston, Thursday, 19 November
Climate normal for this date — 60-year average.
0.24Lewiston, Friday, 20 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 Lewiston, 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 Lewiston, 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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