Rock, Friday, 9 October, 14:04
Mostly clear. Feels like 62°. High 63°, low 40°.
Rock, Saturday, 10 October
Clear. High 74°, low 43°.
Rock, Sunday, 11 October
Clear. High 76°, low 55°.
Rock, Monday, 12 October
Light rain. High 69°, low 51°.
Rock, Tuesday, 13 October
Light rain. High 51°, low 47°.
Rock, Wednesday, 14 October
Overcast. High 56°, low 46°.
Rock, Thursday, 15 October
Light rain. High 55°, low 40°.
Rock, Friday, 16 October
Heavy rain. High 52°, low 39°.
Rock, Saturday, 17 October
Snow. High 38°, low 27°.
Rock, Sunday, 18 October
Overcast. High 45°, low 27°.
Rock, Monday, 19 October
Overcast. High 53°, low 31°.
Rock, Tuesday, 20 October
Clear. High 55°, low 36°.
Rock, Wednesday, 21 October
Light rain. High 58°, low 46°.
Rock, Thursday, 22 October
Light rain. High 58°, low 44°.
Rock, Friday, 23 October
Snow. High 48°, low 36°.
Rock, Saturday, 24 October
Light snow. High 38°, low 32°.
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 Rock, MI 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 Rock, MI 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.