Weather in Ankeny, IA
Ankeny, Saturday, 8 August, 20:22
Overcast. Feels like 76°. High 81°, low 60°.
Monthly outlook for Ankeny, IA: average high 84.7°, average low 63.1°. That is 1.4° above the climate normal for August. Precipitation is expected on 4 days (about 0.4 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 18 August (97.3°), the coolest 21 August (49.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 84.3° | 82.1° | +1.2° |
| 18 August – 27 August | 85.4° | 82.2° | +1.7° |
| 28 August – 6 September | at normal | 80.7° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Des Moines (11 mi).
0
Ankeny, Sunday, 9 August
Mostly clear. High 95°, low 74°.
0.02
Ankeny, Monday, 10 August
Light rain. High 95°, low 74°.
0Ankeny, Tuesday, 11 August
Mostly clear. High 95°, low 70°.
0.04Ankeny, Wednesday, 12 August
Light rain. High 88°, low 69°.
0.13Ankeny, Thursday, 13 August
Light rain. High 71°, low 61°.
0Ankeny, Friday, 14 August
Overcast. High 80°, low 59°.
0.12Ankeny, Saturday, 15 August
Light rain. High 68°, low 59°.
0.01Ankeny, Sunday, 16 August
Light rain. High 81°, low 60°.
0.01Ankeny, Monday, 17 August
Light rain. High 90°, low 66°.
0Ankeny, Tuesday, 18 August
Mostly clear. High 97°, low 68°.
0.01Ankeny, Wednesday, 19 August
Light rain. High 82°, low 62°.
0.04Ankeny, Thursday, 20 August
Light rain. High 69°, low 55°.
0Ankeny, Friday, 21 August
Overcast. High 75°, low 50°.
0.01Ankeny, Saturday, 22 August
Light rain. High 94°, low 58°.
0
Ankeny, Sunday, 23 August
Clear. High 96°, low 65°.
0.11
Ankeny, Monday, 24 August
Climate normal for this date — 60-year average.
0.12Ankeny, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.19
Ankeny, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.17Ankeny, Thursday, 27 August
Climate normal for this date — 60-year average.
0.14Ankeny, Friday, 28 August
Climate normal for this date — 60-year average.
0.11Ankeny, Saturday, 29 August
Climate normal for this date — 60-year average.
0.16Ankeny, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09Ankeny, Monday, 31 August
Climate normal for this date — 60-year average.
0.09Ankeny, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11Ankeny, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09Ankeny, Thursday, 3 September
Climate normal for this date — 60-year average.
0.07Ankeny, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Ankeny, Saturday, 5 September
Climate normal for this date — 60-year average.
0.08Ankeny, Sunday, 6 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 Ankeny, 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 Ankeny, 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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