Missouri Valley, Sunday, 9 August, 03:19
Partly cloudy. Feels like 76°. High 95°, low 75°.
Missouri Valley, Monday, 10 August
Overcast. High 88°, low 73°.
Missouri Valley, Tuesday, 11 August
Partly cloudy. High 103°, low 71°.
Missouri Valley, Wednesday, 12 August
Light rain. High 92°, low 69°.
Missouri Valley, Thursday, 13 August
Rain. High 76°, low 63°.
Missouri Valley, Friday, 14 August
Light rain. High 67°, low 63°.
Missouri Valley, Saturday, 15 August
Light rain. High 71°, low 62°.
Missouri Valley, Sunday, 16 August
Light rain. High 90°, low 63°.
Missouri Valley, Monday, 17 August
Light rain. High 88°, low 68°.
Missouri Valley, Tuesday, 18 August
Overcast. High 98°, low 69°.
Missouri Valley, Wednesday, 19 August
Light rain. High 108°, low 71°.
Missouri Valley, Thursday, 20 August
Light rain. High 108°, low 74°.
Missouri Valley, Friday, 21 August
Light rain. High 96°, low 70°.
Missouri Valley, Saturday, 22 August
Clear. High 115°, low 71°.
Missouri Valley, Sunday, 23 August
Light rain. High 99°, low 77°.
Missouri Valley, Monday, 24 August
Light rain. High 99°, low 69°.
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 Missouri Valley, IA 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 Missouri Valley, IA 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.