Weather in Green Grass, SD
Green Grass, Sunday, 11 October, 18:57
Overcast. Feels like 50°. High 56°, low 49°.
Monthly outlook for Green Grass, SD: average high 59.2°, average low 42.6°. That is 0.5° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 20 October (79.3°), the coolest 26 October (29.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 62.1° | 59.3° | +1.6° |
| 21 October – 30 October | 54.4° | 55.1° | -0.4° |
| 31 October – 9 November | at normal | 49.1° | — |
October records over 66 years
0.09
Green Grass, Monday, 12 October
Rain. High 54°, low 47°.
0.06Green Grass, Tuesday, 13 October
Light rain. High 52°, low 42°.
0.01Green Grass, Wednesday, 14 October
Light rain. High 57°, low 39°.
0.2Green Grass, Thursday, 15 October
Rain. High 54°, low 44°.
0
Green Grass, Friday, 16 October
Clear. High 56°, low 32°.
0Green Grass, Saturday, 17 October
Clear. High 67°, low 41°.
0Green Grass, Sunday, 18 October
Clear. High 76°, low 54°.
0Green Grass, Monday, 19 October
Clear. High 69°, low 50°.
0
Green Grass, Tuesday, 20 October
Partly cloudy. High 79°, low 51°.
0Green Grass, Wednesday, 21 October
Clear. High 67°, low 48°.
0Green Grass, Thursday, 22 October
Overcast. High 65°, low 47°.
0Green Grass, Friday, 23 October
Overcast. High 51°, low 39°.
0Green Grass, Saturday, 24 October
Overcast. High 40°, low 33°.
0Green Grass, Sunday, 25 October
Clear. High 62°, low 32°.
0Green Grass, Monday, 26 October
Partly cloudy. High 41°, low 30°.
0.02
Green Grass, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Green Grass, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.11Green Grass, Thursday, 29 October
Climate normal for this date — 60-year average.
0.03Green Grass, Friday, 30 October
Climate normal for this date — 60-year average.
0.03Green Grass, Saturday, 31 October
Climate normal for this date — 60-year average.
0.04Green Grass, Sunday, 1 November
Climate normal for this date — 60-year average.
0.02Green Grass, Monday, 2 November
Climate normal for this date — 60-year average.
0.03Green Grass, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.01Green Grass, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Green Grass, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Green Grass, Friday, 6 November
Climate normal for this date — 60-year average.
0.04Green Grass, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Green Grass, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Green Grass, Monday, 9 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 Grass, 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 Grass, 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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