Cooper, Friday, 9 October, 11:49
Overcast. Feels like 74°. High 78°, low 51°.
Cooper, Saturday, 10 October
Snow. High 53°, low 34°.
Cooper, Sunday, 11 October
Snow. High 34°, low 28°.
Cooper, Monday, 12 October
Snow. High 32°, low 26°.
Cooper, Tuesday, 13 October
Mostly clear. High 35°, low 22°.
Cooper, Wednesday, 14 October
Overcast. High 45°, low 27°.
Cooper, Thursday, 15 October
Overcast. High 47°, low 38°.
Cooper, Friday, 16 October
Partly cloudy. High 52°, low 31°.
Cooper, Saturday, 17 October
Partly cloudy. High 61°, low 42°.
Cooper, Sunday, 18 October
Overcast. High 65°, low 44°.
Cooper, Monday, 19 October
Overcast. High 68°, low 48°.
Cooper, Tuesday, 20 October
Clear. High 59°, low 44°.
Cooper, Wednesday, 21 October
Overcast. High 65°, low 45°.
Cooper, Thursday, 22 October
Light rain. High 49°, low 39°.
Cooper, Friday, 23 October
Partly cloudy. High 68°, low 37°.
Cooper, Saturday, 24 October
Partly cloudy. High 73°, low 45°.
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 Cooper, MT are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
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.
They are real temperature extremes recorded in Cooper, MT since 1960: the highest and lowest reading for each calendar date, with the year it happened.
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.