Weather in Thunder Butte, SD
Thunder Butte, Sunday, 18 October, 17:05
Clear. Feels like 62°. High 66°, low 42°.
Monthly outlook for Thunder Butte, SD: average high 59.2°, average low 41.9°. That is 2.3° above the climate normal for October. Precipitation is expected on 2 days (about 1.3 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 23 October (78.3°), the coolest 2 November (22.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 62.6° | 57.2° | +3° |
| 28 October – 6 November | 53.5° | 50.6° | +1.6° |
| 7 November – 16 November | at normal | 44.3° | — |
October records over 66 years
0Thunder Butte, Monday, 19 October
Clear. High 63°, low 37°.
0Thunder Butte, Tuesday, 20 October
Clear. High 68°, low 43°.
0
Thunder Butte, Wednesday, 21 October
Overcast. High 66°, low 47°.
0Thunder Butte, Thursday, 22 October
Overcast. High 70°, low 52°.
0.03
Thunder Butte, Friday, 23 October
Light rain. High 78°, low 59°.
0Thunder Butte, Saturday, 24 October
Clear. High 54°, low 43°.
0Thunder Butte, Sunday, 25 October
Clear. High 62°, low 37°.
0.05Thunder Butte, Monday, 26 October
Light rain. High 48°, low 44°.
0.02Thunder Butte, Tuesday, 27 October
Light rain. High 51°, low 43°.
0Thunder Butte, Wednesday, 28 October
Overcast. High 68°, low 50°.
0Thunder Butte, Thursday, 29 October
Clear. High 58°, low 44°.
0
Thunder Butte, Friday, 30 October
Partly cloudy. High 59°, low 40°.
0
Thunder Butte, Saturday, 31 October
Mostly clear. High 59°, low 44°.
1.18
Thunder Butte, Sunday, 1 November
Snow. High 42°, low 24°.
0Thunder Butte, Monday, 2 November
Partly cloudy. High 34°, low 23°.
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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