Monthly outlook for Thunder Butte, SD: average high 59.7°, average low 43.1°. That is 3.9° above the climate normal for October. Precipitation is expected on 3 days (about 1.1 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 23 October (79.2°), the coolest 25 October (36.6°).
59.7°/43.1°
Average high / low
+3.9°
Above normal
3 / 3
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
56.2°
54.2°
+1.1°
1 November – 10 November
65.4°
48.1°
+9.6°
11 November – 20 November
at normal
42.7°
—
October records over 66 years
93.2°4 October 1963All-time high
-5.4°26 October 2020All-time low
Fri, 2379° / 55°0
79 °
Thunder Butte, Friday, 23 October
Partly cloudy. High 79°, low 55°.
Pressure29.65 inHg
Wind14.8 mph SE
Humidity52%
Visibility6.2 mi
Dew point56°
Sat, 2460° / 40°0
60 °
Thunder Butte, Saturday, 24 October
Clear. High 60°, low 40°.
Pressure30.36 inHg
Wind14.1 mph NW
Humidity44%
Visibility6.2 mi
Dew point24°
Sun, 2547° / 37°0.04
47 °
Thunder Butte, Sunday, 25 October
Light rain. High 47°, low 37°.
Pressure30.45 inHg
Wind9.1 mph E
Humidity54%
Visibility6.2 mi
Dew point28°
Mon, 2641° / 38°0.83
41 °
Thunder Butte, Monday, 26 October
Rain. High 41°, low 38°.
Pressure30.45 inHg
Wind14.2 mph NE
Humidity91%
Visibility—
Dew point37°
Tue, 2749° / 39°0.2
49 °
Thunder Butte, Tuesday, 27 October
Rain. High 49°, low 39°.
Pressure30.09 inHg
Wind12.5 mph NE
Humidity82%
Visibility—
Dew point38°
Wed, 2853° / 42°0
53 °
Thunder Butte, Wednesday, 28 October
Overcast. High 53°, low 42°.
Pressure30.12 inHg
Wind13.6 mph NE
Humidity57%
Visibility—
Dew point36°
Thu, 2945° / 37°0.01
45 °
Thunder Butte, Thursday, 29 October
Light rain. High 45°, low 37°.
Pressure30.09 inHg
Wind11.2 mph E
Humidity63%
Visibility—
Dew point30°
Fri, 3053° / 37°0
53 °
Thunder Butte, Friday, 30 October
Overcast. High 53°, low 37°.
Pressure29.85 inHg
Wind8 mph W
Humidity66%
Visibility—
Dew point36°
Sat, 3159° / 40°0
59 °
Thunder Butte, Saturday, 31 October
Partly cloudy. High 59°, low 40°.
Pressure29.80 inHg
Wind19.2 mph NW
Humidity39%
Visibility—
Dew point29°
Sun, 0164° / 44°0
64 °
Thunder Butte, Sunday, 1 November
Clear. High 64°, low 44°.
Pressure30.06 inHg
Wind9.1 mph W
Humidity29%
Visibility—
Dew point26°
Mon, 0263° / 44°0
63 °
Thunder Butte, Monday, 2 November
Overcast. High 63°, low 44°.
Pressure30.18 inHg
Wind15.6 mph SE
Humidity36%
Visibility—
Dew point29°
Tue, 0365° / 46°0
65 °
Thunder Butte, Tuesday, 3 November
Clear. High 65°, low 46°.
Pressure30.12 inHg
Wind17 mph SE
Humidity40%
Visibility—
Dew point35°
Wed, 0464° / 44°0
64 °
Thunder Butte, Wednesday, 4 November
Overcast. High 64°, low 44°.
Pressure30.06 inHg
Wind18.5 mph SE
Humidity49%
Visibility—
Dew point37°
Thu, 0566° / 48°0
66 °
Thunder Butte, Thursday, 5 November
Mostly clear. High 66°, low 48°.
Pressure30.06 inHg
Wind8.2 mph S
Humidity39%
Visibility—
Dew point35°
Fri, 0671° / 51°0
71 °
Thunder Butte, Friday, 6 November
Partly cloudy. High 71°, low 51°.
Pressure29.97 inHg
Wind12.4 mph S
Humidity29%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0748° / 30°0.04
48 °
Thunder Butte, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.04 in
Chance of precipitation15%
Record high71° (2006)
Record low-8° (1991)
Sun, 0847° / 30°0.04
47 °
Thunder Butte, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.04 in
Chance of precipitation15%
Record high75° (1999)
Record low4° (2000)
Mon, 0944° / 28°0.04
44 °
Thunder Butte, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.04 in
Chance of precipitation18%
Record high69° (2001)
Record low2° (2000)
Tue, 1043° / 26°0.06
43 °
Thunder Butte, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.06 in
Chance of precipitation27%
Record high68° (2007)
Record low-5° (1986)
Wed, 1141° / 25°0.01
41 °
Thunder Butte, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high41°
Average low25°
Average precipitation0.01 in
Chance of precipitation8%
Record high68° (2005)
Record low-11° (1986)
Thu, 1243° / 26°0.02
43 °
Thunder Butte, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.02 in
Chance of precipitation15%
Record high71° (1999)
Record low-7° (1986)
Fri, 1345° / 28°0.02
45 °
Thunder Butte, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation17%
Record high69° (1990)
Record low-18° (1986)
Sat, 1444° / 28°0.02
44 °
Thunder Butte, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.02 in
Chance of precipitation12%
Record high70° (1990)
Record low-9° (2014)
Sun, 1543° / 27°0.02
43 °
Thunder Butte, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.02 in
Chance of precipitation10%
Record high66° (2001)
Record low0° (2014)
Mon, 1644° / 26°0.02
44 °
Thunder Butte, Monday, 16 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.02 in
Chance of precipitation7%
Record high67° (2001)
Record low-5° (2022)
Tue, 1742° / 26°0.02
42 °
Thunder Butte, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.02 in
Chance of precipitation12%
Record high64° (2001)
Record low2° (2000)
Wed, 1842° / 25°0.03
42 °
Thunder Butte, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.03 in
Chance of precipitation20%
Record high64° (2007)
Record low0° (1996)
Thu, 1941° / 26°0.03
41 °
Thunder Butte, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.03 in
Chance of precipitation15%
Record high67° (2003)
Record low4° (1985)
Fri, 2040° / 24°0.02
40 °
Thunder Butte, Friday, 20 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.02 in
Chance of precipitation8%
Record high62° (1962)
Record low-10° (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 Thunder Butte, 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 Thunder Butte, 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.