Weather in Green Valley, SD
Green Valley, Tuesday, 20 October, 09:32
Clear. Feels like 57°. High 72°, low 49°.
Monthly outlook for Green Valley, SD: average high 60.2°, average low 41.2°. That is 2.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (82.8°), the coolest 27 October (20.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 58.7° | 57.8° | +0.5° |
| 30 October – 8 November | 62.6° | 52.1° | +5.9° |
| 9 November – 18 November | at normal | 47.4° | — |
October records over 66 years
0
Green Valley, Wednesday, 21 October
Mostly clear. High 69°, low 48°.
0Green Valley, Thursday, 22 October
Clear. High 81°, low 52°.
0
Green Valley, Friday, 23 October
Overcast. High 83°, low 57°.
0Green Valley, Saturday, 24 October
Clear. High 53°, low 44°.
0.31
Green Valley, Sunday, 25 October
Snow. High 43°, low 36°.
0.11Green Valley, Monday, 26 October
Light snow. High 37°, low 31°.
0Green Valley, Tuesday, 27 October
Clear. High 45°, low 20°.
0Green Valley, Wednesday, 28 October
Clear. High 53°, low 35°.
0Green Valley, Thursday, 29 October
Clear. High 51°, low 32°.
0Green Valley, Friday, 30 October
Clear. High 58°, low 34°.
0Green Valley, Saturday, 31 October
Clear. High 60°, low 41°.
0Green Valley, Sunday, 1 November
Mostly clear. High 60°, low 35°.
0Green Valley, Monday, 2 November
Overcast. High 72°, low 50°.
0.01
Green Valley, Tuesday, 3 November
Light rain. High 64°, low 49°.
0Green Valley, Wednesday, 4 November
Light rain. High 62°, low 46°.
0.03Green Valley, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Green Valley, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Green Valley, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Green Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Green Valley, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Green Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Green Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Green Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Green Valley, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Green Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
0.01Green Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Green Valley, Monday, 16 November
Climate normal for this date — 60-year average.
0.02Green Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.03Green Valley, Wednesday, 18 November
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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