Weather in Westreville, SD
Westreville, Sunday, 9 August, 08:34
Mostly clear. Feels like 72°. High 88°, low 69°.
Monthly outlook for Westreville, SD: average high 87.9°, average low 64.4°. That is 2.8° above the climate normal for August. Precipitation is expected on 5 days (about 2.1 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 24 August (100.8°), the coolest 23 August (59.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 86° | 82.7° | +1.9° |
| 19 August – 28 August | 91° | 82.8° | +4.5° |
| 29 August – 7 September | at normal | 81.1° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Gayville (8 mi).
0.05
Westreville, Monday, 10 August
Light rain. High 87°, low 63°.
0
Westreville, Tuesday, 11 August
Overcast. High 98°, low 68°.
0.03Westreville, Wednesday, 12 August
Light rain. High 97°, low 69°.
1.12Westreville, Thursday, 13 August
Heavy rain. High 77°, low 67°.
0.06Westreville, Friday, 14 August
Light rain. High 77°, low 62°.
0.25Westreville, Saturday, 15 August
Rain. High 79°, low 66°.
0Westreville, Sunday, 16 August
Overcast. High 83°, low 63°.
0Westreville, Monday, 17 August
Overcast. High 80°, low 66°.
0.58Westreville, Tuesday, 18 August
Rain. High 94°, low 60°.
0
Westreville, Wednesday, 19 August
Partly cloudy. High 82°, low 61°.
0Westreville, Thursday, 20 August
Overcast. High 91°, low 61°.
0
Westreville, Friday, 21 August
Clear. High 97°, low 66°.
0Westreville, Saturday, 22 August
Partly cloudy. High 87°, low 63°.
0Westreville, Sunday, 23 August
Partly cloudy. High 89°, low 60°.
0Westreville, Monday, 24 August
Clear. High 101°, low 66°.
0.12Westreville, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.1Westreville, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.09Westreville, Thursday, 27 August
Climate normal for this date — 60-year average.
0.11Westreville, Friday, 28 August
Climate normal for this date — 60-year average.
0.06Westreville, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Westreville, Sunday, 30 August
Climate normal for this date — 60-year average.
0.12Westreville, Monday, 31 August
Climate normal for this date — 60-year average.
0.06Westreville, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.09Westreville, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1Westreville, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11Westreville, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Westreville, Saturday, 5 September
Climate normal for this date — 60-year average.
0.03Westreville, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07Westreville, 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 Westreville, SD 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 Westreville, SD 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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