Weather in Lewiston, UT
Lewiston, Saturday, 17 October, 12:52
Clear. Feels like 57°. High 67°, low 40°.
Monthly outlook for Lewiston, UT: average high 55.6°, average low 38.4°. That is 0.4° above the climate normal for October. Precipitation is expected on 6 days (about 2.8 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 22 October (69.5°), the coolest 31 October (24°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 61.8° | 57.3° | +2.5° |
| 27 October – 5 November | 45.3° | 50.5° | -2.9° |
| 6 November – 15 November | at normal | 46° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Cove (5 mi).
0Lewiston, Sunday, 18 October
Clear. High 67°, low 41°.
0Lewiston, Monday, 19 October
Clear. High 66°, low 43°.
0.05
Lewiston, Tuesday, 20 October
Light rain. High 67°, low 45°.
0Lewiston, Wednesday, 21 October
Clear. High 69°, low 47°.
0.03Lewiston, Thursday, 22 October
Light rain. High 70°, low 47°.
1.69Lewiston, Friday, 23 October
Rain. High 51°, low 45°.
0.02Lewiston, Saturday, 24 October
Light rain. High 55°, low 43°.
0.54
Lewiston, Sunday, 25 October
Snow. High 59°, low 36°.
0.02Lewiston, Monday, 26 October
Snow. High 47°, low 34°.
0.07Lewiston, Tuesday, 27 October
Light rain. High 56°, low 37°.
0.01Lewiston, Wednesday, 28 October
Light snow. High 50°, low 33°.
0
Lewiston, Thursday, 29 October
Overcast. High 50°, low 39°.
0.35Lewiston, Friday, 30 October
Snow. High 37°, low 31°.
0Lewiston, Saturday, 31 October
Overcast. High 40°, low 24°.
0.06Lewiston, Sunday, 1 November
Light snow. High 40°, low 30°.
0.05
Lewiston, Monday, 2 November
Climate normal for this date — 60-year average.
0.05
Lewiston, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.06Lewiston, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.07
Lewiston, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Lewiston, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Lewiston, Saturday, 7 November
Climate normal for this date — 60-year average.
0.1Lewiston, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Lewiston, Monday, 9 November
Climate normal for this date — 60-year average.
0.06Lewiston, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Lewiston, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.09Lewiston, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Lewiston, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Lewiston, Saturday, 14 November
Climate normal for this date — 60-year average.
0.03Lewiston, 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, UT 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, UT 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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