Sheffels, Friday, 9 October, 22:10
Overcast. Feels like 57°. High 77°, low 51°.
Sheffels, Saturday, 10 October
Snow. High 58°, low 34°.
Sheffels, Sunday, 11 October
Snow. High 36°, low 29°.
Sheffels, Monday, 12 October
Snow. High 32°, low 25°.
Sheffels, Tuesday, 13 October
Mostly clear. High 36°, low 23°.
Sheffels, Wednesday, 14 October
Clear. High 42°, low 25°.
Sheffels, Thursday, 15 October
Partly cloudy. High 43°, low 33°.
Sheffels, Friday, 16 October
Overcast. High 45°, low 32°.
Sheffels, Saturday, 17 October
Overcast. High 61°, low 35°.
Sheffels, Sunday, 18 October
Partly cloudy. High 57°, low 43°.
Sheffels, Monday, 19 October
Light rain. High 58°, low 45°.
Sheffels, Tuesday, 20 October
Overcast. High 53°, low 39°.
Sheffels, Wednesday, 21 October
Clear. High 53°, low 37°.
Sheffels, Thursday, 22 October
Partly cloudy. High 53°, low 41°.
Sheffels, Friday, 23 October
Clear. High 52°, low 34°.
Sheffels, Saturday, 24 October
Overcast. High 55°, low 36°.
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 Sheffels, 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 Sheffels, 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.