Weather in Dean, MT
Dean, Friday, 9 October, 08:58
Overcast. Feels like 43°. High 76°, low 40°.
Monthly outlook for Dean, MT: average high 51.8°, average low 34.7°. That is 0.9° above the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 9 October (75.9°), the coolest 13 October (19.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 49.2° | 50.6° | -0.8° |
| 19 October – 28 October | 56° | 48° | +4.4° |
| 29 October – 7 November | at normal | 41.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Alpine (14 mi).
0.1
Dean, Saturday, 10 October
Light rain. High 59°, low 38°.
1.08
Dean, Sunday, 11 October
Snow. High 39°, low 29°.
0.41Dean, Monday, 12 October
Snow. High 29°, low 25°.
0Dean, Tuesday, 13 October
Overcast. High 39°, low 20°.
0
Dean, Wednesday, 14 October
Mostly clear. High 51°, low 28°.
0.02Dean, Thursday, 15 October
Snow. High 48°, low 33°.
0.11Dean, Friday, 16 October
Snow. High 40°, low 26°.
0Dean, Saturday, 17 October
Overcast. High 57°, low 38°.
0Dean, Sunday, 18 October
Overcast. High 56°, low 40°.
0Dean, Monday, 19 October
Overcast. High 61°, low 44°.
0
Dean, Tuesday, 20 October
Clear. High 51°, low 40°.
0Dean, Wednesday, 21 October
Overcast. High 56°, low 40°.
0
Dean, Thursday, 22 October
Partly cloudy. High 46°, low 35°.
0Dean, Friday, 23 October
Clear. High 57°, low 34°.
0Dean, Saturday, 24 October
Mostly clear. High 64°, low 46°.
0.06Dean, Sunday, 25 October
Climate normal for this date — 60-year average.
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.
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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