Weather in Westby, MT
Westby, Monday, 19 October, 18:25
Clear. Feels like 52°. High 61°, low 34°.
Monthly outlook for Westby, MT: average high 50.8°, average low 35.1°. That is 1.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 23 October (65.6°), the coolest 27 October (21.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 50.6° | 50.3° | +0.2° |
| 29 October – 7 November | 51° | 43.1° | +4.4° |
| 8 November – 17 November | at normal | 36.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — McElroy (3 mi).
0
Westby, Tuesday, 20 October
Overcast. High 60°, low 35°.
0
Westby, Wednesday, 21 October
Partly cloudy. High 59°, low 31°.
0
Westby, Thursday, 22 October
Clear. High 65°, low 46°.
0.01
Westby, Friday, 23 October
Light rain. High 66°, low 51°.
0.06Westby, Saturday, 24 October
Light rain. High 53°, low 40°.
0Westby, Sunday, 25 October
Overcast. High 38°, low 32°.
0.03
Westby, Monday, 26 October
Light snow. High 33°, low 28°.
0Westby, Tuesday, 27 October
Clear. High 32°, low 22°.
0Westby, Wednesday, 28 October
Clear. High 39°, low 24°.
0Westby, Thursday, 29 October
Partly cloudy. High 49°, low 30°.
0Westby, Friday, 30 October
Overcast. High 50°, low 34°.
0
Westby, Saturday, 31 October
Mostly clear. High 49°, low 39°.
0Westby, Sunday, 1 November
Overcast. High 47°, low 35°.
0Westby, Monday, 2 November
Overcast. High 59°, low 36°.
0.04Westby, Tuesday, 3 November
Light rain. High 52°, low 46°.
0.03Westby, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.03Westby, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Westby, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Westby, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Westby, Sunday, 8 November
Climate normal for this date — 60-year average.
0.03Westby, Monday, 9 November
Climate normal for this date — 60-year average.
0.03Westby, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Westby, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Westby, Thursday, 12 November
Climate normal for this date — 60-year average.
0.02Westby, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Westby, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Westby, Sunday, 15 November
Climate normal for this date — 60-year average.
0.03Westby, Monday, 16 November
Climate normal for this date — 60-year average.
0.02Westby, Tuesday, 17 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 Westby, 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 Westby, 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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