Weather in Chinook, MT
Chinook, Thursday, 22 October, 02:58
Clear. Feels like 44°. High 73°, low 41°.
Monthly outlook for Chinook, MT: average high 53.9°, average low 39.3°. That is 1.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 22 October (72.6°), the coolest 24 October (30.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 49.5° | 52.1° | -1.4° |
| 1 November – 10 November | 61.3° | 46° | +8.5° |
| 11 November – 20 November | at normal | 41.9° | — |
October records over 66 years
0.22
Chinook, Friday, 23 October
Snow. High 51°, low 39°.
0
Chinook, Saturday, 24 October
Partly cloudy. High 48°, low 30°.
0
Chinook, Sunday, 25 October
Clear. High 47°, low 31°.
0
Chinook, Monday, 26 October
Overcast. High 49°, low 34°.
0Chinook, Tuesday, 27 October
Overcast. High 43°, low 39°.
0Chinook, Wednesday, 28 October
Partly cloudy. High 42°, low 33°.
0.09Chinook, Thursday, 29 October
Light snow. High 38°, low 35°.
0Chinook, Friday, 30 October
Clear. High 50°, low 32°.
0Chinook, Saturday, 31 October
Overcast. High 54°, low 38°.
0Chinook, Sunday, 1 November
Clear. High 57°, low 41°.
0Chinook, Monday, 2 November
Overcast. High 55°, low 43°.
0
Chinook, Tuesday, 3 November
Mostly clear. High 58°, low 40°.
0Chinook, Wednesday, 4 November
Overcast. High 64°, low 50°.
0Chinook, Thursday, 5 November
Partly cloudy. High 68°, low 49°.
0Chinook, Friday, 6 November
Overcast. High 65°, low 54°.
0.03Chinook, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Chinook, Sunday, 8 November
Climate normal for this date — 60-year average.
0.05Chinook, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Chinook, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Chinook, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.03Chinook, Thursday, 12 November
Climate normal for this date — 60-year average.
0.02Chinook, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Chinook, Saturday, 14 November
Climate normal for this date — 60-year average.
0.01Chinook, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Chinook, Monday, 16 November
Climate normal for this date — 60-year average.
0.03Chinook, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.02Chinook, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.02Chinook, Thursday, 19 November
Climate normal for this date — 60-year average.
0.02Chinook, Friday, 20 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 Chinook, 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 Chinook, 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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