Rapid City, Saturday, 8 August, 23:52
Clear. Feels like 62°. High 79°, low 62°.
Rapid City, Sunday, 9 August
Rain. High 81°, low 62°.
Rapid City, Monday, 10 August
Light rain. High 79°, low 65°.
Rapid City, Tuesday, 11 August
Overcast. High 80°, low 62°.
Rapid City, Wednesday, 12 August
Light rain. High 74°, low 61°.
Rapid City, Thursday, 13 August
Light rain. High 71°, low 54°.
Rapid City, Friday, 14 August
Clear. High 74°, low 53°.
Rapid City, Saturday, 15 August
Overcast. High 74°, low 52°.
Rapid City, Sunday, 16 August
Mostly clear. High 80°, low 54°.
Rapid City, Monday, 17 August
Light rain. High 82°, low 61°.
Rapid City, Tuesday, 18 August
Rain. High 88°, low 63°.
Rapid City, Wednesday, 19 August
Rain. High 70°, low 59°.
Rapid City, Thursday, 20 August
Light rain. High 70°, low 58°.
Rapid City, Friday, 21 August
Overcast. High 73°, low 51°.
Rapid City, Saturday, 22 August
Light rain. High 74°, low 55°.
Rapid City, Sunday, 23 August
Light rain. High 74°, low 59°.
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 Rapid City, 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 Rapid City, 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.