Monthly outlook for Belle Fourche, SD: average high 61.2°, average low 41.9°. That is 4.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (81.5°), the coolest 29 October (26.5°).
61.2°/41.9°
Average high / low
+4.3°
Above normal
1 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
56.3°
55°
+0.8°
1 November – 10 November
69.2°
49.4°
+11°
11 November – 20 November
at normal
45.2°
—
October records over 66 years
92.5°4 October 1963All-time high
-5.8°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Arpan (13 mi).
Fri, 2382° / 51°0
82 °
Belle Fourche, Friday, 23 October
Overcast. High 82°, low 51°.
Pressure29.62 inHg
Wind2.3 mph E
Humidity40%
Visibility6.2 mi
Dew point45°
Sat, 2452° / 41°0
52 °
Belle Fourche, Saturday, 24 October
Clear. High 52°, low 41°.
Pressure30.45 inHg
Wind10.3 mph NW
Humidity49%
Visibility6.2 mi
Dew point21°
Sun, 2547° / 41°0
47 °
Belle Fourche, Sunday, 25 October
Overcast. High 47°, low 41°.
Pressure30.33 inHg
Wind18.1 mph E
Humidity57%
Visibility6.2 mi
Dew point30°
Mon, 2640° / 34°0.22
40 °
Belle Fourche, Monday, 26 October
Snow. High 40°, low 34°.
Pressure30.47 inHg
Wind11.4 mph E
Humidity97%
Visibility—
Dew point37°
Tue, 2745° / 33°0
45 °
Belle Fourche, Tuesday, 27 October
Overcast. High 45°, low 33°.
Pressure30.12 inHg
Wind13 mph E
Humidity78%
Visibility—
Dew point32°
Wed, 2849° / 32°0
49 °
Belle Fourche, Wednesday, 28 October
Clear. High 49°, low 32°.
Pressure30.06 inHg
Wind23.8 mph NW
Humidity61%
Visibility—
Dew point36°
Thu, 2949° / 26°0
49 °
Belle Fourche, Thursday, 29 October
Clear. High 49°, low 26°.
Pressure30.33 inHg
Wind10.2 mph W
Humidity25%
Visibility—
Dew point8°
Fri, 3061° / 36°0
61 °
Belle Fourche, Friday, 30 October
Overcast. High 61°, low 36°.
Pressure29.77 inHg
Wind9.3 mph E
Humidity36%
Visibility—
Dew point27°
Sat, 3162° / 44°0
62 °
Belle Fourche, Saturday, 31 October
Overcast. High 62°, low 44°.
Pressure29.71 inHg
Wind9 mph NW
Humidity30%
Visibility—
Dew point26°
Sun, 0160° / 40°0
60 °
Belle Fourche, Sunday, 1 November
Clear. High 60°, low 40°.
Pressure30.03 inHg
Wind8.6 mph SE
Humidity28%
Visibility—
Dew point21°
Mon, 0264° / 42°0
64 °
Belle Fourche, Monday, 2 November
Overcast. High 64°, low 42°.
Pressure30.09 inHg
Wind19.4 mph NW
Humidity17%
Visibility—
Dew point15°
Tue, 0369° / 43°0
69 °
Belle Fourche, Tuesday, 3 November
Partly cloudy. High 69°, low 43°.
Pressure30.12 inHg
Wind7.2 mph E
Humidity20%
Visibility—
Dew point18°
Wed, 0477° / 50°0
77 °
Belle Fourche, Wednesday, 4 November
Clear. High 77°, low 50°.
Pressure29.77 inHg
Wind9.2 mph SW
Humidity24%
Visibility—
Dew point31°
Thu, 0573° / 51°0
73 °
Belle Fourche, Thursday, 5 November
Clear. High 73°, low 51°.
Pressure29.85 inHg
Wind7.7 mph W
Humidity13%
Visibility—
Dew point15°
Fri, 0672° / 50°0
72 °
Belle Fourche, Friday, 6 November
Clear. High 72°, low 50°.
Pressure29.85 inHg
Wind7.8 mph E
Humidity26%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0750° / 31°0.03
50 °
Belle Fourche, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation12%
Record high76° (1999)
Record low-4° (1991)
Sun, 0848° / 30°0.04
48 °
Belle Fourche, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.04 in
Chance of precipitation23%
Record high79° (1999)
Record low6° (2000)
Mon, 0945° / 28°0.06
45 °
Belle Fourche, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.06 in
Chance of precipitation22%
Record high71° (2001)
Record low2° (1966)
Tue, 1046° / 27°0.05
46 °
Belle Fourche, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.05 in
Chance of precipitation20%
Record high71° (2007)
Record low-9° (1986)
Wed, 1144° / 26°0.02
44 °
Belle Fourche, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.02 in
Chance of precipitation17%
Record high68° (2005)
Record low-9° (1986)
Thu, 1246° / 26°0.02
46 °
Belle Fourche, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low26°
Average precipitation0.02 in
Chance of precipitation13%
Record high76° (1999)
Record low-9° (1986)
Fri, 1347° / 28°0.04
47 °
Belle Fourche, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.04 in
Chance of precipitation20%
Record high69° (1990)
Record low-15° (1986)
Sat, 1447° / 29°0.03
47 °
Belle Fourche, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation20%
Record high74° (2025)
Record low-4° (2014)
Sun, 1546° / 27°0.02
46 °
Belle Fourche, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.02 in
Chance of precipitation13%
Record high69° (2021)
Record low0° (1978)
Mon, 1647° / 28°0.02
47 °
Belle Fourche, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.02 in
Chance of precipitation7%
Record high67° (2001)
Record low5° (2014)
Tue, 1745° / 28°0.02
45 °
Belle Fourche, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation13%
Record high65° (1976)
Record low-2° (2000)
Wed, 1845° / 27°0.04
45 °
Belle Fourche, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.04 in
Chance of precipitation18%
Record high70° (2008)
Record low4° (1996)
Thu, 1943° / 27°0.03
43 °
Belle Fourche, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.03 in
Chance of precipitation18%
Record high66° (1989)
Record low2° (1985)
Fri, 2043° / 26°0.02
43 °
Belle Fourche, Friday, 20 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.02 in
Chance of precipitation10%
Record high70° (1990)
Record low-9° (1985)
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.