Weather in Shelby, MT
Shelby, Tuesday, 20 October, 00:27
Overcast. Feels like 49°. High 59°, low 36°.
Monthly outlook for Shelby, MT: average high 53.1°, average low 36.5°. That is 1.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 22 October (66.7°), the coolest 27 October (27.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 50.5° | 52.3° | -1° |
| 30 October – 8 November | 57.6° | 46° | +6.4° |
| 9 November – 18 November | at normal | 41.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Dunkirk (9 mi).
0
Shelby, Wednesday, 21 October
Partly cloudy. High 64°, low 33°.
0
Shelby, Thursday, 22 October
Mostly clear. High 67°, low 39°.
0.17
Shelby, Friday, 23 October
Light rain. High 49°, low 39°.
0Shelby, Saturday, 24 October
Overcast. High 44°, low 31°.
0Shelby, Sunday, 25 October
Partly cloudy. High 40°, low 30°.
0Shelby, Monday, 26 October
Overcast. High 40°, low 29°.
0
Shelby, Tuesday, 27 October
Clear. High 42°, low 27°.
0Shelby, Wednesday, 28 October
Clear. High 46°, low 29°.
0Shelby, Thursday, 29 October
Overcast. High 54°, low 34°.
0Shelby, Friday, 30 October
Clear. High 53°, low 37°.
0Shelby, Saturday, 31 October
Overcast. High 58°, low 40°.
0Shelby, Sunday, 1 November
Clear. High 59°, low 43°.
0Shelby, Monday, 2 November
Partly cloudy. High 62°, low 43°.
0Shelby, Tuesday, 3 November
Overcast. High 57°, low 46°.
0Shelby, Wednesday, 4 November
Overcast. High 55°, low 47°.
0.03Shelby, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Shelby, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Shelby, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Shelby, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Shelby, Monday, 9 November
Climate normal for this date — 60-year average.
0.03Shelby, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Shelby, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Shelby, Thursday, 12 November
Climate normal for this date — 60-year average.
0.01Shelby, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Shelby, Saturday, 14 November
Climate normal for this date — 60-year average.
0.01Shelby, Sunday, 15 November
Climate normal for this date — 60-year average.
0.03Shelby, Monday, 16 November
Climate normal for this date — 60-year average.
0.03Shelby, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.03Shelby, Wednesday, 18 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 Shelby, 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 Shelby, 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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