Marion, Monday, 12 October, 22:27
Clear. Feels like 30°. High 43°, low 29°.
Marion, Tuesday, 13 October
Clear. High 50°, low 27°.
Marion, Wednesday, 14 October
Clear. High 55°, low 31°.
Marion, Thursday, 15 October
Mostly clear. High 59°, low 39°.
Marion, Friday, 16 October
Clear. High 66°, low 42°.
Marion, Saturday, 17 October
Overcast. High 65°, low 43°.
Marion, Sunday, 18 October
Mostly clear. High 59°, low 41°.
Marion, Monday, 19 October
Overcast. High 64°, low 41°.
Marion, Tuesday, 20 October
Snow. High 48°, low 35°.
Marion, Wednesday, 21 October
Overcast. High 43°, low 31°.
Marion, Thursday, 22 October
Snow. High 41°, low 30°.
Marion, Friday, 23 October
Snow. High 40°, low 35°.
Marion, Saturday, 24 October
Overcast. High 46°, low 29°.
Marion, Sunday, 25 October
Overcast. High 53°, low 32°.
Marion, Monday, 26 October
Mostly clear. High 60°, low 35°.
Marion, Tuesday, 27 October
Mostly clear. High 63°, low 38°.
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 Marion, 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 Marion, 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.