Weather in Green Valley, SD
Green Valley, Saturday, 8 August, 21:10
Clear. Feels like 78°. High 98°, low 64°.
Monthly outlook for Green Valley, SD: average high 87.9°, average low 65.1°. That is 2.4° above the climate normal for August. Precipitation is expected on 7 days (about 1.3 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 10 August (101.6°), the coolest 19 August (59.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 88.7° | 83.6° | +2.8° |
| 18 August – 27 August | 86.7° | 83.6° | +1.7° |
| 28 August – 6 September | at normal | 81.7° | — |
August records over 66 years
0
Green Valley, Sunday, 9 August
Partly cloudy. High 92°, low 67°.
0Green Valley, Monday, 10 August
Partly cloudy. High 102°, low 65°.
0.06
Green Valley, Tuesday, 11 August
Light rain. High 93°, low 67°.
0.06Green Valley, Wednesday, 12 August
Light rain. High 94°, low 63°.
0.67Green Valley, Thursday, 13 August
Heavy rain. High 71°, low 61°.
0.07Green Valley, Friday, 14 August
Light rain. High 76°, low 65°.
0.03Green Valley, Saturday, 15 August
Light rain. High 83°, low 64°.
0.09Green Valley, Sunday, 16 August
Light rain. High 84°, low 68°.
0.04Green Valley, Monday, 17 August
Light rain. High 94°, low 67°.
0Green Valley, Tuesday, 18 August
Partly cloudy. High 98°, low 69°.
0.01Green Valley, Wednesday, 19 August
Light rain. High 79°, low 60°.
0.14Green Valley, Thursday, 20 August
Light rain. High 83°, low 66°.
0.09Green Valley, Friday, 21 August
Light rain. High 88°, low 67°.
0
Green Valley, Saturday, 22 August
Clear. High 82°, low 65°.
0Green Valley, Sunday, 23 August
Clear. High 90°, low 63°.
0.02
Green Valley, Monday, 24 August
Climate normal for this date — 60-year average.
0.02Green Valley, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.08Green Valley, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.07Green Valley, Thursday, 27 August
Climate normal for this date — 60-year average.
0.03Green Valley, Friday, 28 August
Climate normal for this date — 60-year average.
0.04Green Valley, Saturday, 29 August
Climate normal for this date — 60-year average.
0.03Green Valley, Sunday, 30 August
Climate normal for this date — 60-year average.
0.02Green Valley, Monday, 31 August
Climate normal for this date — 60-year average.
0.06Green Valley, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.07Green Valley, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.02Green Valley, Thursday, 3 September
Climate normal for this date — 60-year average.
0.06Green Valley, Friday, 4 September
Climate normal for this date — 60-year average.
0.04Green Valley, Saturday, 5 September
Climate normal for this date — 60-year average.
0.02Green Valley, 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 Green Valley, 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 Green Valley, 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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