Weather in Thunder Butte, SD
Thunder Butte, Sunday, 18 October, 13:30
Mostly clear. Feels like 65°. High 67°, low 43°.
Monthly outlook for Thunder Butte, SD: average high 56°, average low 39.7°. That is 0.6° above the climate normal for October. Precipitation is expected on 3 days (about 1.4 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 23 October (76.2°), the coolest 1 November (18.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 64.5° | 57.2° | +4.1° |
| 28 October – 6 November | 41.8° | 50.6° | -4.9° |
| 7 November – 16 November | at normal | 44.3° | — |
October records over 66 years
0
Thunder Butte, Monday, 19 October
Clear. High 63°, low 36°.
0Thunder Butte, Tuesday, 20 October
Clear. High 69°, low 45°.
0Thunder Butte, Wednesday, 21 October
Clear. High 66°, low 48°.
0
Thunder Butte, Thursday, 22 October
Overcast. High 72°, low 50°.
0
Thunder Butte, Friday, 23 October
Partly cloudy. High 76°, low 58°.
0.02
Thunder Butte, Saturday, 24 October
Light rain. High 54°, low 41°.
0Thunder Butte, Sunday, 25 October
Clear. High 63°, low 37°.
0Thunder Butte, Monday, 26 October
Clear. High 60°, low 43°.
0.31Thunder Butte, Tuesday, 27 October
Rain. High 56°, low 48°.
0Thunder Butte, Wednesday, 28 October
Mostly clear. High 56°, low 46°.
0Thunder Butte, Thursday, 29 October
Partly cloudy. High 52°, low 40°.
0.91
Thunder Butte, Friday, 30 October
Snow. High 42°, low 31°.
0.15Thunder Butte, Saturday, 31 October
Snow. High 31°, low 24°.
0Thunder Butte, Sunday, 1 November
Partly cloudy. High 34°, low 19°.
0Thunder Butte, Monday, 2 November
Overcast. High 35°, low 27°.
0.02Thunder Butte, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.01Thunder Butte, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Thunder Butte, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Thunder Butte, Friday, 6 November
Climate normal for this date — 60-year average.
0.04Thunder Butte, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Thunder Butte, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Thunder Butte, Monday, 9 November
Climate normal for this date — 60-year average.
0.06Thunder Butte, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.01Thunder Butte, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Thunder Butte, Thursday, 12 November
Climate normal for this date — 60-year average.
0.02Thunder Butte, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Thunder Butte, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Thunder Butte, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Thunder Butte, Monday, 16 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 Thunder Butte, 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 Thunder Butte, 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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