Weather in Lewiston, UT
Lewiston, Friday, 16 October, 06:52
Clear. Feels like 37°. High 65°, low 39°.
Monthly outlook for Lewiston, UT: average high 56.4°, average low 40.8°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 2.3 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 22 October (71.7°), the coolest 25 October (32.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 16 October – 25 October | 61.6° | 57.8° | +2.1° |
| 26 October – 4 November | 47.8° | 50.9° | -1.7° |
| 5 November – 14 November | at normal | 46.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Cove (5 mi).
0
Lewiston, Saturday, 17 October
Clear. High 68°, low 46°.
0
Lewiston, Sunday, 18 October
Partly cloudy. High 65°, low 44°.
0Lewiston, Monday, 19 October
Clear. High 65°, low 44°.
0.09
Lewiston, Tuesday, 20 October
Light rain. High 65°, low 50°.
0Lewiston, Wednesday, 21 October
Clear. High 67°, low 45°.
0Lewiston, Thursday, 22 October
Light rain. High 72°, low 53°.
1.48Lewiston, Friday, 23 October
Heavy rain. High 55°, low 44°.
0.02Lewiston, Saturday, 24 October
Light rain. High 46°, low 37°.
0Lewiston, Sunday, 25 October
Clear. High 47°, low 33°.
0
Lewiston, Monday, 26 October
Overcast. High 49°, low 35°.
0Lewiston, Tuesday, 27 October
Overcast. High 53°, low 42°.
0.6
Lewiston, Wednesday, 28 October
Snow. High 49°, low 35°.
0.14Lewiston, Thursday, 29 October
Light snow. High 39°, low 34°.
0Lewiston, Friday, 30 October
Overcast. High 47°, low 37°.
0Lewiston, Saturday, 31 October
Overcast. High 50°, low 37°.
0.05Lewiston, Sunday, 1 November
Climate normal for this date — 60-year average.
0.05Lewiston, 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.
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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