Weather in Belle Fourche, SD
Belle Fourche, Wednesday, 21 October, 04:49
Mostly clear. Feels like 49°. High 73°, low 51°.
Monthly outlook for Belle Fourche, SD: average high 57.7°, average low 40.9°. That is 2° above the climate normal for October. Precipitation is expected on 4 days (about 3.7 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (82.8°), the coolest 5 November (27.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 59.2° | 55.8° | +1.9° |
| 31 October – 9 November | 55.1° | 49.9° | +2.9° |
| 10 November – 19 November | at normal | 45.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Arpan (13 mi).
0
Belle Fourche, Thursday, 22 October
Clear. High 81°, low 54°.
0
Belle Fourche, Friday, 23 October
Partly cloudy. High 83°, low 56°.
0
Belle Fourche, Saturday, 24 October
Overcast. High 53°, low 43°.
0Belle Fourche, Sunday, 25 October
Overcast. High 48°, low 41°.
0.07
Belle Fourche, Monday, 26 October
Light rain. High 45°, low 37°.
0.03Belle Fourche, Tuesday, 27 October
Light rain. High 56°, low 33°.
0Belle Fourche, Wednesday, 28 October
Overcast. High 44°, low 33°.
0Belle Fourche, Thursday, 29 October
Partly cloudy. High 50°, low 29°.
0Belle Fourche, Friday, 30 October
Clear. High 59°, low 34°.
0Belle Fourche, Saturday, 31 October
Overcast. High 65°, low 42°.
0Belle Fourche, Sunday, 1 November
Overcast. High 65°, low 46°.
0Belle Fourche, Monday, 2 November
Overcast. High 69°, low 48°.
0.87Belle Fourche, Tuesday, 3 November
Rain. High 52°, low 48°.
2.47
Belle Fourche, Wednesday, 4 November
Snow. High 48°, low 30°.
0.28Belle Fourche, Thursday, 5 November
Snow. High 32°, low 27°.
0.04
Belle Fourche, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Belle Fourche, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Belle Fourche, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Belle Fourche, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Belle Fourche, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Belle Fourche, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Belle Fourche, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Belle Fourche, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Belle Fourche, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Belle Fourche, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Belle Fourche, Monday, 16 November
Climate normal for this date — 60-year average.
0.02Belle Fourche, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.04Belle Fourche, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.03Belle Fourche, Thursday, 19 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 Belle Fourche, 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 Belle Fourche, 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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