Weather in Rock Valley, IA
Rock Valley, Saturday, 8 August, 14:58
Partly cloudy. Feels like 80°. High 82°, low 56°.
0.19
Rock Valley, Sunday, 9 August
Rain. High 85°, low 69°.
0.3Rock Valley, Monday, 10 August
Heavy rain. High 100°, low 65°.
0
Rock Valley, Tuesday, 11 August
Clear. High 96°, low 68°.
0.04Rock Valley, Wednesday, 12 August
Light rain. High 99°, low 66°.
0.04Rock Valley, Thursday, 13 August
Light rain. High 85°, low 61°.
0Rock Valley, Friday, 14 August
Clear. High 89°, low 57°.
0
Rock Valley, Saturday, 15 August
Overcast. High 90°, low 61°.
0.09Rock Valley, Sunday, 16 August
Light rain. High 99°, low 70°.
0.26Rock Valley, Monday, 17 August
Rain. High 92°, low 68°.
0Rock Valley, Tuesday, 18 August
Partly cloudy. High 99°, low 68°.
0.01Rock Valley, Wednesday, 19 August
Light rain. High 92°, low 66°.
0Rock Valley, Thursday, 20 August
Clear. High 90°, low 61°.
0Rock Valley, Friday, 21 August
Clear. High 97°, low 64°.
0.02Rock Valley, Saturday, 22 August
Light rain. High 80°, low 60°.
0
Rock Valley, Sunday, 23 August
Mostly clear. High 83°, low 48°.
About the monthly outlook
How accurate is a 30-day forecast?
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 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.
What does "above normal" mean?
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.
Where do the 66-year records come from?
They are real temperature extremes recorded in Rock Valley, IA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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