Weather in Belle Fourche, SD
Belle Fourche, Sunday, 18 October, 23:07
Overcast. Feels like 48°. High 68°, low 51°.
Monthly outlook for Belle Fourche, SD: average high 64.4°, average low 42.2°. That is 4.9° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (81.5°), the coolest 30 October (32.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 67.3° | 57.9° | +5.2° |
| 28 October – 6 November | 59.6° | 51.5° | +4.5° |
| 7 November – 16 November | at normal | 46.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Arpan (13 mi).
0
Belle Fourche, Monday, 19 October
Clear. High 66°, low 47°.
0Belle Fourche, Tuesday, 20 October
Clear. High 73°, low 46°.
0Belle Fourche, Wednesday, 21 October
Clear. High 68°, low 44°.
0
Belle Fourche, Thursday, 22 October
Partly cloudy. High 80°, low 49°.
0Belle Fourche, Friday, 23 October
Overcast. High 81°, low 56°.
0Belle Fourche, Saturday, 24 October
Overcast. High 60°, low 42°.
0
Belle Fourche, Sunday, 25 October
Mostly clear. High 54°, low 34°.
0Belle Fourche, Monday, 26 October
Clear. High 53°, low 38°.
0Belle Fourche, Tuesday, 27 October
Clear. High 70°, low 37°.
0Belle Fourche, Wednesday, 28 October
Partly cloudy. High 76°, low 45°.
0Belle Fourche, Thursday, 29 October
Overcast. High 70°, low 41°.
0Belle Fourche, Friday, 30 October
Overcast. High 41°, low 32°.
0Belle Fourche, Saturday, 31 October
Overcast. High 53°, low 33°.
0.08
Belle Fourche, Sunday, 1 November
Light rain. High 53°, low 38°.
0Belle Fourche, Monday, 2 November
Partly cloudy. High 65°, low 43°.
0.03Belle Fourche, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.01Belle Fourche, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.03Belle Fourche, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Belle 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.
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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