False Summit, Wednesday, 7 October, 22:27
Mostly clear. Feels like 39°. High 63°, low 35°.
False Summit, Thursday, 8 October
Overcast. High 66°, low 35°.
False Summit, Friday, 9 October
Light rain. High 58°, low 37°.
False Summit, Saturday, 10 October
Snow. High 40°, low 24°.
False Summit, Sunday, 11 October
Light snow. High 23°, low 20°.
False Summit, Monday, 12 October
Light snow. High 39°, low 20°.
False Summit, Tuesday, 13 October
Clear. High 51°, low 25°.
False Summit, Wednesday, 14 October
Snow. High 37°, low 27°.
False Summit, Thursday, 15 October
Light snow. High 35°, low 18°.
False Summit, Friday, 16 October
Mostly clear. High 40°, low 19°.
False Summit, Saturday, 17 October
Overcast. High 44°, low 26°.
False Summit, Sunday, 18 October
Overcast. High 47°, low 29°.
False Summit, Monday, 19 October
Overcast. High 49°, low 31°.
False Summit, Tuesday, 20 October
Overcast. High 50°, low 33°.
False Summit, Wednesday, 21 October
Snow. High 46°, low 36°.
False Summit, Thursday, 22 October
Snow. High 37°, low 29°.
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 False Summit, 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 False Summit, 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.