Weather in Dean, MT
Dean, Saturday, 10 October, 15:15
Overcast. Feels like 62°. High 64°, low 43°.
Monthly outlook for Dean, MT: average high 52.5°, average low 36°. That is 1.5° above the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 24 October (67.4°), the coolest 14 October (22.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 48.1° | 50.5° | -1.3° |
| 20 October – 29 October | 59.9° | 47.2° | +7.1° |
| 30 October – 8 November | at normal | 41.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Alpine (14 mi).
0.95
Dean, Sunday, 11 October
Snow. High 43°, low 33°.
0.31Dean, Monday, 12 October
Snow. High 31°, low 26°.
0
Dean, Tuesday, 13 October
Mostly clear. High 44°, low 25°.
0Dean, Wednesday, 14 October
Mostly clear. High 45°, low 23°.
0
Dean, Thursday, 15 October
Clear. High 51°, low 29°.
0Dean, Friday, 16 October
Clear. High 34°, low 25°.
0
Dean, Saturday, 17 October
Partly cloudy. High 52°, low 26°.
0Dean, Sunday, 18 October
Overcast. High 55°, low 39°.
0Dean, Monday, 19 October
Partly cloudy. High 61°, low 45°.
0.01
Dean, Tuesday, 20 October
Light rain. High 58°, low 44°.
0Dean, Wednesday, 21 October
Partly cloudy. High 51°, low 38°.
0Dean, Thursday, 22 October
Mostly clear. High 52°, low 33°.
0Dean, Friday, 23 October
Partly cloudy. High 67°, low 47°.
0Dean, Saturday, 24 October
Overcast. High 67°, low 49°.
0Dean, Sunday, 25 October
Overcast. High 65°, low 51°.
0.11
Dean, Monday, 26 October
Climate normal for this date — 60-year average.
0.08Dean, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.1Dean, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.11Dean, Thursday, 29 October
Climate normal for this date — 60-year average.
0.08Dean, Friday, 30 October
Climate normal for this date — 60-year average.
0.1Dean, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09Dean, Sunday, 1 November
Climate normal for this date — 60-year average.
0.07Dean, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Dean, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07Dean, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.09Dean, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Dean, Friday, 6 November
Climate normal for this date — 60-year average.
0.1Dean, Saturday, 7 November
Climate normal for this date — 60-year average.
0.09Dean, Sunday, 8 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 Dean, 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 Dean, 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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