Weather in Lewiston, CA
Lewiston, Wednesday, 21 October, 22:21
Overcast. Feels like 58°. High 69°, low 49°.
Monthly outlook for Lewiston, CA: average high 74.3°, average low 48.8°. That is 5° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 4 November (84.3°), the coolest 31 October (42.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 71.2° | 66.3° | +2.7° |
| 31 October – 9 November | 79.4° | 61.8° | +9.8° |
| 10 November – 19 November | at normal | 56.1° | — |
October records over 66 years
0.28
Lewiston, Thursday, 22 October
Rain. High 64°, low 55°.
0
Lewiston, Friday, 23 October
Mostly clear. High 67°, low 49°.
0
Lewiston, Saturday, 24 October
Partly cloudy. High 76°, low 45°.
0Lewiston, Sunday, 25 October
Partly cloudy. High 72°, low 47°.
0Lewiston, Monday, 26 October
Overcast. High 72°, low 49°.
0Lewiston, Tuesday, 27 October
Partly cloudy. High 75°, low 48°.
0Lewiston, Wednesday, 28 October
Overcast. High 72°, low 48°.
0
Lewiston, Thursday, 29 October
Clear. High 74°, low 46°.
0Lewiston, Friday, 30 October
Partly cloudy. High 73°, low 46°.
0Lewiston, Saturday, 31 October
Overcast. High 71°, low 43°.
0Lewiston, Sunday, 1 November
Clear. High 75°, low 47°.
0Lewiston, Monday, 2 November
Overcast. High 80°, low 50°.
0Lewiston, Tuesday, 3 November
Clear. High 83°, low 52°.
0Lewiston, Wednesday, 4 November
Partly cloudy. High 84°, low 51°.
0Lewiston, Thursday, 5 November
Mostly clear. High 83°, low 56°.
0.14
Lewiston, Friday, 6 November
Climate normal for this date — 60-year average.
0.21Lewiston, 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.
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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