Monthly outlook for Thunder Butte, SD: average high 56.6°, average low 38.3°. That is 1.2° above the climate normal for October. Precipitation is expected on 1 day (about 0.0 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (77.1°), the coolest 28 October (26.1°).
56.6°/38.3°
Average high / low
+1.2°
Above normal
1 / 3
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
60.7°
56.8°
+2.2°
29 October – 7 November
49.8°
50.1°
-0.1°
8 November – 17 November
at normal
43.7°
—
October records over 66 years
93.2°4 October 1963All-time high
-5.4°26 October 2020All-time low
Tue, 2070° / 42°0
70 °
Thunder Butte, Tuesday, 20 October
Clear. High 70°, low 42°.
Pressure30.03 inHg
Wind6.7 mph SE
Humidity52%
Visibility6.2 mi
Dew point45°
Wed, 2165° / 46°0
65 °
Thunder Butte, Wednesday, 21 October
Overcast. High 65°, low 46°.
Pressure30.21 inHg
Wind6 mph E
Humidity63%
Visibility6.2 mi
Dew point48°
Thu, 2275° / 51°0
75 °
Thunder Butte, Thursday, 22 October
Clear. High 75°, low 51°.
Pressure29.97 inHg
Wind11.9 mph SE
Humidity60%
Visibility6.2 mi
Dew point55°
Fri, 2377° / 59°0
77 °
Thunder Butte, Friday, 23 October
Overcast. High 77°, low 59°.
Pressure29.62 inHg
Wind17 mph SE
Humidity57%
Visibility—
Dew point54°
Sat, 2463° / 46°0
63 °
Thunder Butte, Saturday, 24 October
Mostly clear. High 63°, low 46°.
Pressure30.15 inHg
Wind18.8 mph NW
Humidity42%
Visibility—
Dew point31°
Sun, 2557° / 40°0
57 °
Thunder Butte, Sunday, 25 October
Clear. High 57°, low 40°.
Pressure30.36 inHg
Wind9.1 mph NW
Humidity20%
Visibility—
Dew point12°
Mon, 2652° / 37°0
52 °
Thunder Butte, Monday, 26 October
Mostly clear. High 52°, low 37°.
Pressure30.09 inHg
Wind17.3 mph NE
Humidity34%
Visibility—
Dew point21°
Tue, 2739° / 30°0
39 °
Thunder Butte, Tuesday, 27 October
Mostly clear. High 39°, low 30°.
Pressure30.53 inHg
Wind17 mph NW
Humidity42%
Visibility—
Dew point15°
Wed, 2849° / 26°0
49 °
Thunder Butte, Wednesday, 28 October
Clear. High 49°, low 26°.
Pressure30.36 inHg
Wind6.5 mph NW
Humidity28%
Visibility—
Dew point10°
Thu, 2953° / 33°0
53 °
Thunder Butte, Thursday, 29 October
Overcast. High 53°, low 33°.
Pressure29.97 inHg
Wind6.1 mph S
Humidity26%
Visibility—
Dew point14°
Fri, 3047° / 31°0
47 °
Thunder Butte, Friday, 30 October
Clear. High 47°, low 31°.
Pressure30.03 inHg
Wind8.3 mph E
Humidity33%
Visibility—
Dew point15°
Sat, 3149° / 34°0
49 °
Thunder Butte, Saturday, 31 October
Overcast. High 49°, low 34°.
Pressure29.88 inHg
Wind12.8 mph SE
Humidity40%
Visibility—
Dew point20°
Sun, 0145° / 30°0
45 °
Thunder Butte, Sunday, 1 November
Partly cloudy. High 45°, low 30°.
Pressure30.27 inHg
Wind10.7 mph SE
Humidity52%
Visibility—
Dew point23°
Mon, 0248° / 32°0.04
48 °
Thunder Butte, Monday, 2 November
Light rain. High 48°, low 32°.
Pressure29.97 inHg
Wind19 mph SE
Humidity47%
Visibility—
Dew point27°
Tue, 0356° / 38°0
56 °
Thunder Butte, Tuesday, 3 November
Overcast. High 56°, low 38°.
Pressure29.97 inHg
Wind15.7 mph N
Humidity47%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0451° / 31°0.01
51 °
Thunder Butte, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low31°
Average precipitation0.01 in
Chance of precipitation12%
Record high76° (1978)
Record low-7° (1991)
Thu, 0549° / 31°0.04
49 °
Thunder Butte, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.04 in
Chance of precipitation18%
Record high71° (2020)
Record low2° (2003)
Fri, 0649° / 30°0.02
49 °
Thunder Butte, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.02 in
Chance of precipitation8%
Record high71° (2016)
Record low4° (1991)
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)
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.