Blackleaf, Wednesday, 7 October, 06:46
Overcast. Feels like 39°. High 66°, low 39°.
Blackleaf, Thursday, 8 October
Overcast. High 70°, low 41°.
Blackleaf, Friday, 9 October
Light rain. High 68°, low 46°.
Blackleaf, Saturday, 10 October
Snow. High 47°, low 29°.
Blackleaf, Sunday, 11 October
Snow. High 28°, low 25°.
Blackleaf, Monday, 12 October
Mostly clear. High 33°, low 23°.
Blackleaf, Tuesday, 13 October
Clear. High 54°, low 31°.
Blackleaf, Wednesday, 14 October
Snow. High 41°, low 33°.
Blackleaf, Thursday, 15 October
Overcast. High 42°, low 28°.
Blackleaf, Friday, 16 October
Overcast. High 51°, low 30°.
Blackleaf, Saturday, 17 October
Overcast. High 51°, low 35°.
Blackleaf, Sunday, 18 October
Overcast. High 61°, low 40°.
Blackleaf, Monday, 19 October
Mostly clear. High 57°, low 44°.
Blackleaf, Tuesday, 20 October
Clear. High 51°, low 39°.
Blackleaf, Wednesday, 21 October
Mostly clear. High 57°, low 36°.
Blackleaf, Thursday, 22 October
Overcast. High 51°, 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 Blackleaf, 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 Blackleaf, 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.