Valley Island, Sunday, 9 August, 12:02
Mostly clear. Feels like 77°. High 82°, low 60°.
Valley Island, Monday, 10 August
Rain. High 83°, low 72°.
Valley Island, Tuesday, 11 August
Mostly clear. High 75°, low 66°.
Valley Island, Wednesday, 12 August
Clear. High 73°, low 66°.
Valley Island, Thursday, 13 August
Partly cloudy. High 70°, low 63°.
Valley Island, Friday, 14 August
Clear. High 69°, low 62°.
Valley Island, Saturday, 15 August
Overcast. High 71°, low 61°.
Valley Island, Sunday, 16 August
Rain. High 66°, low 58°.
Valley Island, Monday, 17 August
Mostly clear. High 75°, low 63°.
Valley Island, Tuesday, 18 August
Overcast. High 77°, low 64°.
Valley Island, Wednesday, 19 August
Light rain. High 76°, low 65°.
Valley Island, Thursday, 20 August
Mostly clear. High 68°, low 60°.
Valley Island, Friday, 21 August
Overcast. High 73°, low 58°.
Valley Island, Saturday, 22 August
Rain. High 74°, low 65°.
Valley Island, Sunday, 23 August
Light rain. High 71°, low 62°.
Valley Island, Monday, 24 August
Mostly clear. High 73°, 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 Valley Island, 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 Valley Island, 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.