Weather in Lewistown, MT
Lewistown, Sunday, 8 November, 10:28
Overcast. Feels like 58°. High 61°, low 41°.
Monthly outlook for Lewistown, MT: average high 52°, average low 37.6°. That is 5.6° above the climate normal for November. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 4 days and 0.6 inches. The warmest day looks like 12 November (66.5°), the coolest 20 November (23.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 November – 17 November | 59.9° | 43.2° | +9.2° |
| 18 November – 27 November | 38.8° | 38.5° | +0.2° |
| 28 November – 7 December | at normal | 35° | — |
November records over 66 years
0Lewistown, Monday, 9 November
Overcast. High 57°, low 38°.
0.01
Lewistown, Tuesday, 10 November
Light rain. High 55°, low 39°.
0
Lewistown, Wednesday, 11 November
Partly cloudy. High 62°, low 37°.
0Lewistown, Thursday, 12 November
Overcast. High 66°, low 45°.
0
Lewistown, Friday, 13 November
Clear. High 65°, low 45°.
0
Lewistown, Saturday, 14 November
Mostly clear. High 65°, low 49°.
0Lewistown, Sunday, 15 November
Overcast. High 61°, low 46°.
0Lewistown, Monday, 16 November
Overcast. High 61°, low 46°.
0Lewistown, Tuesday, 17 November
Overcast. High 44°, low 35°.
0.2
Lewistown, Wednesday, 18 November
Snow. High 35°, low 30°.
0.26Lewistown, Thursday, 19 November
Snow. High 30°, low 27°.
0Lewistown, Friday, 20 November
Clear. High 38°, low 24°.
0Lewistown, Saturday, 21 November
Partly cloudy. High 43°, low 32°.
0Lewistown, Sunday, 22 November
Overcast. High 47°, low 39°.
0.06Lewistown, Monday, 23 November
Light snow. High 40°, low 29°.
0.04Lewistown, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.08
Lewistown, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.06Lewistown, Thursday, 26 November
Climate normal for this date — 60-year average.
0.03Lewistown, Friday, 27 November
Climate normal for this date — 60-year average.
0.04Lewistown, Saturday, 28 November
Climate normal for this date — 60-year average.
0.04Lewistown, Sunday, 29 November
Climate normal for this date — 60-year average.
0.03Lewistown, Monday, 30 November
Climate normal for this date — 60-year average.
0.04Lewistown, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.07Lewistown, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.03Lewistown, Thursday, 3 December
Climate normal for this date — 60-year average.
0.04Lewistown, Friday, 4 December
Climate normal for this date — 60-year average.
0.06Lewistown, Saturday, 5 December
Climate normal for this date — 60-year average.
0.05Lewistown, Sunday, 6 December
Climate normal for this date — 60-year average.
0.03Lewistown, Monday, 7 December
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 Lewistown, MT 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 Lewistown, MT 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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