Monthly outlook for Bonesteel, SD: average high 62.1°, average low 43.1°. That is 3.5° above the climate normal for October. Precipitation is expected on 3 days (about 1.4 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 23 October (77.5°), the coolest 27 October (29°).
62.1°/43.1°
Average high / low
+3.5°
Above normal
3 / 3
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
60.9°
58°
+1.6°
30 October – 8 November
64.1°
52°
+6.7°
9 November – 18 November
at normal
47.1°
—
October records over 66 years
91.8°2 October 1997All-time high
9.9°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Butte (12 mi).
Wed, 2172° / 48°0
72 °
Bonesteel, Wednesday, 21 October
Clear. High 72°, low 48°.
Pressure30.15 inHg
Wind5.5 mph N
Humidity61%
Visibility6.2 mi
Dew point50°
Thu, 2276° / 48°0
76 °
Bonesteel, Thursday, 22 October
Clear. High 76°, low 48°.
Pressure30.12 inHg
Wind8.9 mph S
Humidity61%
Visibility6.2 mi
Dew point56°
Fri, 2378° / 61°0
78 °
Bonesteel, Friday, 23 October
Overcast. High 78°, low 61°.
Pressure29.88 inHg
Wind18.3 mph S
Humidity55%
Visibility6.2 mi
Dew point53°
Sat, 2467° / 50°0.41
67 °
Bonesteel, Saturday, 24 October
Rain. High 67°, low 50°.
Pressure30.15 inHg
Wind14.8 mph NW
Humidity76%
Visibility6.2 mi
Dew point50°
Sun, 2550° / 44°0.61
50 °
Bonesteel, Sunday, 25 October
Rain. High 50°, low 44°.
Pressure30.42 inHg
Wind7.9 mph N
Humidity93%
Visibility—
Dew point44°
Mon, 2644° / 33°0.36
44 °
Bonesteel, Monday, 26 October
Light rain. High 44°, low 33°.
Pressure30.50 inHg
Wind14.2 mph N
Humidity86%
Visibility—
Dew point38°
Tue, 2745° / 29°0
45 °
Bonesteel, Tuesday, 27 October
Clear. High 45°, low 29°.
Pressure30.53 inHg
Wind8.2 mph S
Humidity40%
Visibility—
Dew point18°
Wed, 2851° / 35°0
51 °
Bonesteel, Wednesday, 28 October
Partly cloudy. High 51°, low 35°.
Pressure30.24 inHg
Wind17 mph NW
Humidity49%
Visibility—
Dew point29°
Thu, 2955° / 35°0
55 °
Bonesteel, Thursday, 29 October
Overcast. High 55°, low 35°.
Pressure30.24 inHg
Wind7.1 mph SE
Humidity27%
Visibility—
Dew point17°
Fri, 3062° / 38°0
62 °
Bonesteel, Friday, 30 October
Clear. High 62°, low 38°.
Pressure29.83 inHg
Wind21.2 mph S
Humidity56%
Visibility—
Dew point39°
Sat, 3159° / 46°0
59 °
Bonesteel, Saturday, 31 October
Overcast. High 59°, low 46°.
Pressure29.68 inHg
Wind18.1 mph S
Humidity34%
Visibility—
Dew point27°
Sun, 0163° / 42°0
63 °
Bonesteel, Sunday, 1 November
Clear. High 63°, low 42°.
Pressure29.83 inHg
Wind11.2 mph NW
Humidity31%
Visibility—
Dew point27°
Mon, 0257° / 43°0
57 °
Bonesteel, Monday, 2 November
Overcast. High 57°, low 43°.
Pressure30.27 inHg
Wind8.3 mph E
Humidity32%
Visibility—
Dew point24°
Tue, 0373° / 41°0
73 °
Bonesteel, Tuesday, 3 November
Overcast. High 73°, low 41°.
Pressure30.00 inHg
Wind12.1 mph S
Humidity42%
Visibility—
Dew point36°
Wed, 0471° / 52°0
71 °
Bonesteel, Wednesday, 4 November
Clear. High 71°, low 52°.
Pressure30.06 inHg
Wind9.6 mph W
Humidity42%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0552° / 35°0.03
52 °
Bonesteel, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.03 in
Chance of precipitation12%
Record high76° (2020)
Record low15° (2003)
Fri, 0652° / 34°0.02
52 °
Bonesteel, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.02 in
Chance of precipitation12%
Record high80° (2020)
Record low7° (2003)
Sat, 0752° / 34°0.02
52 °
Bonesteel, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.02 in
Chance of precipitation13%
Record high77° (2020)
Record low-3° (1991)
Sun, 0851° / 34°0.06
51 °
Bonesteel, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.06 in
Chance of precipitation13%
Record high76° (2006)
Record low2° (1991)
Mon, 0948° / 33°0.09
48 °
Bonesteel, Monday, 9 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.09 in
Chance of precipitation23%
Record high71° (2001)
Record low11° (2018)
Tue, 1047° / 30°0.04
47 °
Bonesteel, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.04 in
Chance of precipitation20%
Record high68° (1989)
Record low1° (1986)
Wed, 1145° / 29°0.06
45 °
Bonesteel, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.06 in
Chance of precipitation23%
Record high74° (2005)
Record low-6° (1986)
Thu, 1246° / 29°0.05
46 °
Bonesteel, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.05 in
Chance of precipitation20%
Record high72° (1999)
Record low1° (1986)
Fri, 1348° / 31°0.03
48 °
Bonesteel, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.03 in
Chance of precipitation18%
Record high71° (1999)
Record low-11° (1986)
Sat, 1448° / 31°0.02
48 °
Bonesteel, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.02 in
Chance of precipitation13%
Record high80° (2025)
Record low9° (2000)
Sun, 1547° / 30°0.06
47 °
Bonesteel, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.06 in
Chance of precipitation20%
Record high71° (2001)
Record low6° (2000)
Mon, 1649° / 30°0.05
49 °
Bonesteel, Monday, 16 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.05 in
Chance of precipitation12%
Record high73° (2021)
Record low3° (2014)
Tue, 1746° / 30°0.04
46 °
Bonesteel, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.04 in
Chance of precipitation18%
Record high68° (2001)
Record low-1° (2000)
Wed, 1846° / 29°0.05
46 °
Bonesteel, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.05 in
Chance of precipitation23%
Record high70° (2020)
Record low0° (1996)
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 Bonesteel, 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 Bonesteel, 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.