Cooper, Thursday, 8 October, 06:28
Clear. Feels like 42°. High 75°, low 44°.
Cooper, Friday, 9 October
Overcast. High 79°, low 49°.
Cooper, Saturday, 10 October
Snow. High 54°, low 33°.
Cooper, Sunday, 11 October
Snow. High 33°, low 32°.
Cooper, Monday, 12 October
Snow. High 36°, low 29°.
Cooper, Tuesday, 13 October
Clear. High 49°, low 25°.
Cooper, Wednesday, 14 October
Rain. High 53°, low 39°.
Cooper, Thursday, 15 October
Snow. High 38°, low 33°.
Cooper, Friday, 16 October
Clear. High 43°, low 28°.
Cooper, Saturday, 17 October
Partly cloudy. High 56°, low 34°.
Cooper, Sunday, 18 October
Mostly clear. High 55°, low 38°.
Cooper, Monday, 19 October
Partly cloudy. High 61°, low 43°.
Cooper, Tuesday, 20 October
Partly cloudy. High 59°, low 43°.
Cooper, Wednesday, 21 October
Overcast. High 59°, low 45°.
Cooper, Thursday, 22 October
Light snow. High 45°, low 35°.
Cooper, Friday, 23 October
Overcast. High 44°, low 33°.
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.