Weather in Alta Vista, IA
Alta Vista, Sunday, 9 August, 07:30
Heavy rain. Feels like 67°. High 84°, low 64°.
Monthly outlook for Alta Vista, IA: average high 80°, average low 64.5°. That is 1.3° above the climate normal for August. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 22 August (90.8°), the coolest 14 August (55°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 77.5° | 77.7° | -0.1° |
| 19 August – 28 August | 84.2° | 77.7° | +3.6° |
| 29 August – 7 September | at normal | 76.1° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Elma (4 mi).
0.14Alta Vista, Monday, 10 August
Rain. High 83°, low 66°.
0.31Alta Vista, Tuesday, 11 August
Heavy rain. High 82°, low 68°.
0
Alta Vista, Wednesday, 12 August
Mostly clear. High 80°, low 66°.
0.02Alta Vista, Thursday, 13 August
Light rain. High 69°, low 59°.
0
Alta Vista, Friday, 14 August
Overcast. High 71°, low 55°.
0Alta Vista, Saturday, 15 August
Overcast. High 69°, low 60°.
0.01Alta Vista, Sunday, 16 August
Light rain. High 76°, low 64°.
0Alta Vista, Monday, 17 August
Overcast. High 77°, low 59°.
0.02Alta Vista, Tuesday, 18 August
Light rain. High 83°, low 63°.
0Alta Vista, Wednesday, 19 August
Overcast. High 87°, low 68°.
0Alta Vista, Thursday, 20 August
Mostly clear. High 90°, low 74°.
0Alta Vista, Friday, 21 August
Overcast. High 81°, low 65°.
0.02Alta Vista, Saturday, 22 August
Light rain. High 91°, low 68°.
0.15Alta Vista, Sunday, 23 August
Rain. High 81°, low 70°.
0.37Alta Vista, Monday, 24 August
Rain. High 74°, low 63°.
0.11
Alta Vista, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.11Alta Vista, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.16Alta Vista, Thursday, 27 August
Climate normal for this date — 60-year average.
0.23Alta Vista, Friday, 28 August
Climate normal for this date — 60-year average.
0.13Alta Vista, Saturday, 29 August
Climate normal for this date — 60-year average.
0.12
Alta Vista, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Alta Vista, Monday, 31 August
Climate normal for this date — 60-year average.
0.06Alta Vista, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.1Alta Vista, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09Alta Vista, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11Alta Vista, Friday, 4 September
Climate normal for this date — 60-year average.
0.11Alta Vista, Saturday, 5 September
Climate normal for this date — 60-year average.
0.11Alta Vista, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07Alta Vista, 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 Alta Vista, 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 Alta Vista, 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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