Bynum, Monday, 12 October, 23:22
Clear. Feels like 24°. High 34°, low 24°.
Bynum, Tuesday, 13 October
Clear. High 47°, low 25°.
Bynum, Wednesday, 14 October
Overcast. High 58°, low 33°.
Bynum, Thursday, 15 October
Clear. High 52°, low 33°.
Bynum, Friday, 16 October
Mostly clear. High 69°, low 34°.
Bynum, Saturday, 17 October
Overcast. High 67°, low 39°.
Bynum, Sunday, 18 October
Mostly clear. High 59°, low 38°.
Bynum, Monday, 19 October
Overcast. High 68°, low 47°.
Bynum, Tuesday, 20 October
Light rain. High 50°, low 40°.
Bynum, Wednesday, 21 October
Overcast. High 42°, low 31°.
Bynum, Thursday, 22 October
Clear. High 47°, low 32°.
Bynum, Friday, 23 October
Overcast. High 44°, low 35°.
Bynum, Saturday, 24 October
Overcast. High 51°, low 31°.
Bynum, Sunday, 25 October
Overcast. High 58°, low 37°.
Bynum, Monday, 26 October
Clear. High 69°, low 49°.
Bynum, Tuesday, 27 October
Overcast. High 63°, low 49°.
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 Bynum, 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 Bynum, 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.