Darby, Saturday, 17 October, 06:41
Partly cloudy. Feels like 49°. High 65°, low 38°.
Darby, Sunday, 18 October
Clear. High 59°, low 32°.
Darby, Monday, 19 October
Mostly clear. High 69°, low 38°.
Darby, Tuesday, 20 October
Overcast. High 61°, low 42°.
Darby, Wednesday, 21 October
Light rain. High 67°, low 40°.
Darby, Thursday, 22 October
Light rain. High 66°, low 40°.
Darby, Friday, 23 October
Light rain. High 51°, low 39°.
Darby, Saturday, 24 October
Partly cloudy. High 48°, low 31°.
Darby, Sunday, 25 October
Light snow. High 52°, low 32°.
Darby, Monday, 26 October
Light snow. High 52°, low 37°.
Darby, Tuesday, 27 October
Snow. High 44°, low 36°.
Darby, Wednesday, 28 October
Clear. High 50°, low 27°.
Darby, Thursday, 29 October
Snow. High 41°, low 33°.
Darby, Friday, 30 October
Clear. High 39°, low 23°.
Darby, Saturday, 31 October
Light snow. High 41°, low 27°.
Darby, Sunday, 1 November
Overcast. High 53°, low 27°.
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 Darby, 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 Darby, 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.