Avon, Thursday, 8 October, 08:47
Mostly clear. Feels like 41°. High 73°, low 38°.
Avon, Friday, 9 October
Partly cloudy. High 75°, low 42°.
Avon, Saturday, 10 October
Snow. High 44°, low 28°.
Avon, Sunday, 11 October
Snow. High 29°, low 25°.
Avon, Monday, 12 October
Light snow. High 36°, low 27°.
Avon, Tuesday, 13 October
Clear. High 47°, low 27°.
Avon, Wednesday, 14 October
Snow. High 44°, low 34°.
Avon, Thursday, 15 October
Snow. High 34°, low 20°.
Avon, Friday, 16 October
Mostly clear. High 39°, low 16°.
Avon, Saturday, 17 October
Clear. High 46°, low 22°.
Avon, Sunday, 18 October
Clear. High 51°, low 28°.
Avon, Monday, 19 October
Clear. High 54°, low 33°.
Avon, Tuesday, 20 October
Overcast. High 54°, low 35°.
Avon, Wednesday, 21 October
Partly cloudy. High 51°, low 36°.
Avon, Thursday, 22 October
Overcast. High 57°, low 32°.
Avon, Friday, 23 October
Snow. High 39°, low 25°.
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.