Weather in Belle Fourche, SD
Belle Fourche, Sunday, 18 October, 13:38
Clear. Feels like 63°. High 67°, low 47°.
Monthly outlook for Belle Fourche, SD: average high 59.8°, average low 40°. That is 2.3° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 22 October (77.3°), the coolest 31 October (22.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 66.3° | 57.9° | +4.7° |
| 28 October – 6 November | 49° | 51.5° | -1.3° |
| 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).
0Belle Fourche, Monday, 19 October
Clear. High 65°, low 45°.
0Belle Fourche, Tuesday, 20 October
Clear. High 72°, low 42°.
0Belle Fourche, Wednesday, 21 October
Clear. High 67°, low 44°.
0
Belle Fourche, Thursday, 22 October
Overcast. High 77°, low 51°.
0.14
Belle Fourche, Friday, 23 October
Rain. High 77°, low 53°.
0.02Belle Fourche, Saturday, 24 October
Light rain. High 52°, low 41°.
0Belle Fourche, Sunday, 25 October
Clear. High 62°, low 38°.
0Belle Fourche, Monday, 26 October
Clear. High 63°, low 42°.
0.24Belle Fourche, Tuesday, 27 October
Rain. High 61°, low 47°.
0
Belle Fourche, Wednesday, 28 October
Partly cloudy. High 60°, low 41°.
0Belle Fourche, Thursday, 29 October
Overcast. High 53°, low 39°.
0.54
Belle Fourche, Friday, 30 October
Snow. High 42°, low 27°.
0.02Belle Fourche, Saturday, 31 October
Light snow. High 36°, low 22°.
0Belle Fourche, Sunday, 1 November
Partly cloudy. High 44°, low 24°.
0Belle Fourche, Monday, 2 November
Overcast. High 59°, low 38°.
0.03
Belle 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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