Avon, Thursday, 8 October, 04:09
Clear. Feels like 39°. High 73°, low 39°.
Avon, Friday, 9 October
Overcast. High 76°, low 43°.
Avon, Saturday, 10 October
Snow. High 45°, low 27°.
Avon, Sunday, 11 October
Snow. High 27°, low 25°.
Avon, Monday, 12 October
Light snow. High 36°, low 26°.
Avon, Tuesday, 13 October
Clear. High 48°, low 28°.
Avon, Wednesday, 14 October
Snow. High 41°, low 35°.
Avon, Thursday, 15 October
Snow. High 37°, low 28°.
Avon, Friday, 16 October
Partly cloudy. High 43°, low 23°.
Avon, Saturday, 17 October
Overcast. High 50°, low 29°.
Avon, Sunday, 18 October
Clear. High 55°, low 32°.
Avon, Monday, 19 October
Overcast. High 58°, low 37°.
Avon, Tuesday, 20 October
Overcast. High 62°, low 39°.
Avon, Wednesday, 21 October
Snow. High 52°, low 36°.
Avon, Thursday, 22 October
Light snow. High 38°, low 29°.
Avon, Friday, 23 October
Snow. High 43°, low 26°.
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 Avon, 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 Avon, 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.