Weather in Lewiston, UT
Lewiston, Thursday, 15 October, 08:04
Clear. Feels like 40°. High 64°, low 40°.
Monthly outlook for Lewiston, UT: average high 55.7°, average low 38.4°. That is 0.2° below the climate normal for October. Precipitation is expected on 6 days (about 2.2 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 25 October (67.5°), the coolest 30 October (23.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 61° | 58.1° | +1.6° |
| 25 October – 3 November | 47° | 51.5° | -2.5° |
| 4 November – 13 November | at normal | 47.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Cove (5 mi).
0Lewiston, Friday, 16 October
Clear. High 66°, low 39°.
0Lewiston, Saturday, 17 October
Clear. High 65°, low 42°.
0Lewiston, Sunday, 18 October
Clear. High 64°, low 44°.
0Lewiston, Monday, 19 October
Clear. High 65°, low 44°.
0
Lewiston, Tuesday, 20 October
Partly cloudy. High 65°, low 47°.
0.3
Lewiston, Wednesday, 21 October
Rain. High 62°, low 46°.
0.07Lewiston, Thursday, 22 October
Light rain. High 53°, low 42°.
0Lewiston, Friday, 23 October
Light rain. High 51°, low 41°.
0Lewiston, Saturday, 24 October
Partly cloudy. High 54°, low 35°.
0Lewiston, Sunday, 25 October
Partly cloudy. High 67°, low 43°.
0.64
Lewiston, Monday, 26 October
Snow. High 65°, low 37°.
0.42Lewiston, Tuesday, 27 October
Snow. High 37°, low 35°.
0.2Lewiston, Wednesday, 28 October
Snow. High 40°, low 33°.
0.53Lewiston, Thursday, 29 October
Snow. High 37°, low 25°.
0Lewiston, Friday, 30 October
Partly cloudy. High 36°, low 23°.
0.08
Lewiston, Saturday, 31 October
Climate normal for this date — 60-year average.
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.
0.07Lewiston, 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.
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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