Weather in Coralville, IA
Coralville, Sunday, 9 August, 00:05
Partly cloudy. Feels like 69°. High 92°, low 67°.
Monthly outlook for Coralville, IA: average high 80.9°, average low 62.8°. That is 0° above the climate normal for August. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 9 August (92.3°), the coolest 21 August (51.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 82° | 80.9° | +0.6° |
| 19 August – 28 August | 79.1° | 81.1° | -1.1° |
| 29 August – 7 September | at normal | 79.3° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Tiffin (3 mi).
0
Coralville, Monday, 10 August
Partly cloudy. High 88°, low 72°.
0
Coralville, Tuesday, 11 August
Overcast. High 92°, low 70°.
0Coralville, Wednesday, 12 August
Overcast. High 84°, low 68°.
0.05
Coralville, Thursday, 13 August
Light rain. High 72°, low 62°.
0Coralville, Friday, 14 August
Overcast. High 77°, low 59°.
0.03Coralville, Saturday, 15 August
Light rain. High 66°, low 60°.
0Coralville, Sunday, 16 August
Overcast. High 76°, low 62°.
0.02Coralville, Monday, 17 August
Light rain. High 84°, low 65°.
0Coralville, Tuesday, 18 August
Overcast. High 88°, low 67°.
0.03Coralville, Wednesday, 19 August
Light rain. High 76°, low 61°.
0.09Coralville, Thursday, 20 August
Light rain. High 68°, low 54°.
0Coralville, Friday, 21 August
Overcast. High 73°, low 52°.
0.01Coralville, Saturday, 22 August
Light rain. High 86°, low 58°.
0
Coralville, Sunday, 23 August
Clear. High 86°, low 65°.
0.01Coralville, Monday, 24 August
Light rain. High 86°, low 63°.
0.17Coralville, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.17
Coralville, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12Coralville, Thursday, 27 August
Climate normal for this date — 60-year average.
0.2Coralville, Friday, 28 August
Climate normal for this date — 60-year average.
0.1Coralville, Saturday, 29 August
Climate normal for this date — 60-year average.
0.09Coralville, Sunday, 30 August
Climate normal for this date — 60-year average.
0.1Coralville, Monday, 31 August
Climate normal for this date — 60-year average.
0.09Coralville, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12Coralville, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09Coralville, Thursday, 3 September
Climate normal for this date — 60-year average.
0.07Coralville, Friday, 4 September
Climate normal for this date — 60-year average.
0.07
Coralville, Saturday, 5 September
Climate normal for this date — 60-year average.
0.11Coralville, Sunday, 6 September
Climate normal for this date — 60-year average.
0.16Coralville, Monday, 7 September
Climate normal for this date — 60-year average.
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 Coralville, 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 Coralville, 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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