Weather in Lewiston, CA
Lewiston, Saturday, 17 October, 09:51
Partly cloudy. Feels like 47°. High 85°, low 45°.
Monthly outlook for Lewiston, CA: average high 63.4°, average low 41.8°. That is 2.3° below the climate normal for October. Precipitation is expected on 5 days (about 4.9 inches), against a normal of 3 days and 1.8 inches. The warmest day looks like 17 October (85.3°), the coolest 30 October (33.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 69.4° | 69.4° | +0° |
| 27 October – 5 November | 53.3° | 64° | -5.9° |
| 6 November – 15 November | at normal | 57.8° | — |
October records over 66 years
0
Lewiston, Sunday, 18 October
Clear. High 82°, low 41°.
0.05
Lewiston, Monday, 19 October
Light rain. High 63°, low 48°.
0
Lewiston, Tuesday, 20 October
Overcast. High 70°, low 48°.
0Lewiston, Wednesday, 21 October
Overcast. High 76°, low 51°.
0Lewiston, Thursday, 22 October
Overcast. High 68°, low 49°.
0Lewiston, Friday, 23 October
Partly cloudy. High 70°, low 41°.
1.83Lewiston, Saturday, 24 October
Heavy rain. High 51°, low 45°.
0Lewiston, Sunday, 25 October
Light rain. High 62°, low 40°.
0
Lewiston, Monday, 26 October
Mostly clear. High 68°, low 41°.
0Lewiston, Tuesday, 27 October
Overcast. High 62°, low 42°.
0Lewiston, Wednesday, 28 October
Clear. High 65°, low 37°.
0.22Lewiston, Thursday, 29 October
Rain. High 54°, low 35°.
0Lewiston, Friday, 30 October
Overcast. High 56°, low 34°.
0.83
Lewiston, Saturday, 31 October
Snow. High 43°, low 37°.
1.94Lewiston, Sunday, 1 November
Snow. High 40°, low 36°.
0.11Lewiston, Monday, 2 November
Climate normal for this date — 60-year average.
0.09Lewiston, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Lewiston, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.15
Lewiston, Thursday, 5 November
Climate normal for this date — 60-year average.
0.14Lewiston, 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.
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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