Weather in Lewiston, CA
Lewiston, Sunday, 18 October, 23:42
Mostly clear. Feels like 47°. High 77°, low 44°.
Monthly outlook for Lewiston, CA: average high 65.4°, average low 41.2°. That is 0.9° below the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 25 October (85.6°), the coolest 28 October (30.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 72.2° | 68.7° | +1.9° |
| 28 October – 6 November | 54.1° | 63.4° | -5.2° |
| 7 November – 16 November | at normal | 57.3° | — |
October records over 66 years
0
Lewiston, Monday, 19 October
Overcast. High 69°, low 42°.
0.02
Lewiston, Tuesday, 20 October
Light rain. High 69°, low 40°.
0.31Lewiston, Wednesday, 21 October
Rain. High 74°, low 53°.
0.32Lewiston, Thursday, 22 October
Rain. High 61°, low 50°.
0Lewiston, Friday, 23 October
Overcast. High 64°, low 47°.
0
Lewiston, Saturday, 24 October
Mostly clear. High 77°, low 37°.
0
Lewiston, Sunday, 25 October
Clear. High 86°, low 50°.
0Lewiston, Monday, 26 October
Clear. High 83°, low 48°.
0Lewiston, Tuesday, 27 October
Overcast. High 62°, low 34°.
0.06Lewiston, Wednesday, 28 October
Light rain. High 54°, low 31°.
0.5
Lewiston, Thursday, 29 October
Snow. High 40°, low 33°.
0Lewiston, Friday, 30 October
Overcast. High 53°, low 37°.
0Lewiston, Saturday, 31 October
Mostly clear. High 62°, low 34°.
0
Lewiston, Sunday, 1 November
Partly cloudy. High 68°, low 42°.
0.01Lewiston, Monday, 2 November
Light rain. High 48°, low 37°.
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.
0.22Lewiston, Monday, 16 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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