Monthly outlook for Date, SD: average high 59.9°, average low 42.7°. That is 1.1° above the climate normal for October. Precipitation is expected on 4 days (about 2.0 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 9 October (80.7°), the coolest 12 October (33.2°).
59.9°/42.7°
Average high / low
+1.1°
Above normal
4 / 3
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
61.4°
58.6°
+1.6°
17 October – 26 October
57.5°
56°
+0.8°
27 October – 5 November
at normal
49.5°
—
October records over 66 years
89.6°2 October 1997All-time high
-5.4°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Bison (15 mi).
Thu, 0872° / 43°0
72 °
Date, Thursday, 8 October
Partly cloudy. High 72°, low 43°.
Pressure30.03 inHg
Wind12.1 mph SE
Humidity37%
Visibility6.2 mi
Dew point38°
Fri, 0981° / 50°0
81 °
Date, Friday, 9 October
Overcast. High 81°, low 50°.
Pressure29.62 inHg
Wind7.6 mph S
Humidity44%
Visibility6.2 mi
Dew point50°
Sat, 1077° / 60°0
77 °
Date, Saturday, 10 October
Mostly clear. High 77°, low 60°.
Pressure29.47 inHg
Wind11.3 mph W
Humidity24%
Visibility6.2 mi
Dew point37°
Sun, 1154° / 40°0.3
54 °
Date, Sunday, 11 October
Rain. High 54°, low 40°.
Pressure30.03 inHg
Wind12.8 mph N
Humidity92%
Visibility3.8 mi
Dew point41°
Mon, 1237° / 33°0.54
37 °
Date, Monday, 12 October
Snow. High 37°, low 33°.
Pressure30.33 inHg
Wind11.7 mph N
Humidity94%
Visibility—
Dew point32°
Tue, 1355° / 35°0
55 °
Date, Tuesday, 13 October
Partly cloudy. High 55°, low 35°.
Pressure30.12 inHg
Wind19.1 mph SE
Humidity57%
Visibility—
Dew point33°
Wed, 1470° / 53°0
70 °
Date, Wednesday, 14 October
Overcast. High 70°, low 53°.
Pressure29.47 inHg
Wind18.5 mph SE
Humidity49%
Visibility—
Dew point48°
Thu, 1558° / 37°1.12
58 °
Date, Thursday, 15 October
Rain. High 58°, low 37°.
Pressure29.83 inHg
Wind29.5 mph NW
Humidity85%
Visibility—
Dew point38°
Fri, 1638° / 36°0.09
38 °
Date, Friday, 16 October
Snow. High 38°, low 36°.
Pressure30.21 inHg
Wind27.3 mph NW
Humidity86%
Visibility—
Dew point33°
Sat, 1743° / 36°0
43 °
Date, Saturday, 17 October
Overcast. High 43°, low 36°.
Pressure30.30 inHg
Wind15.8 mph NW
Humidity79%
Visibility—
Dew point33°
Sun, 1854° / 36°0
54 °
Date, Sunday, 18 October
Clear. High 54°, low 36°.
Pressure30.15 inHg
Wind6.5 mph S
Humidity50%
Visibility—
Dew point29°
Mon, 1961° / 41°0
61 °
Date, Monday, 19 October
Clear. High 61°, low 41°.
Pressure29.97 inHg
Wind9.6 mph SE
Humidity43%
Visibility—
Dew point32°
Tue, 2063° / 44°0
63 °
Date, Tuesday, 20 October
Clear. High 63°, low 44°.
Pressure30.06 inHg
Wind7.9 mph NW
Humidity58%
Visibility—
Dew point41°
Wed, 2160° / 45°0
60 °
Date, Wednesday, 21 October
Overcast. High 60°, low 45°.
Pressure30.18 inHg
Wind6.7 mph NW
Humidity40%
Visibility—
Dew point31°
Thu, 2264° / 47°0
64 °
Date, Thursday, 22 October
Clear. High 64°, low 47°.
Pressure30.12 inHg
Wind9.2 mph S
Humidity41%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2354° / 36°0.03
54 °
Date, Friday, 23 October
Climate normal for this date — 60-year average.
Average high54°
Average low36°
Average precipitation0.03 in
Chance of precipitation15%
Record high80° (1973)
Record low8° (2020)
Sat, 2454° / 36°0.02
54 °
Date, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high54°
Average low36°
Average precipitation0.02 in
Chance of precipitation12%
Record high75° (1965)
Record low12° (2020)
Sun, 2555° / 36°0.01
55 °
Date, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high55°
Average low36°
Average precipitation0.01 in
Chance of precipitation7%
Record high74° (2017)
Record low8° (2020)
Mon, 2655° / 35°0.04
55 °
Date, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low35°
Average precipitation0.04 in
Chance of precipitation12%
Record high76° (1990)
Record low-5° (2020)
Tue, 2752° / 34°0.04
52 °
Date, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.04 in
Chance of precipitation22%
Record high74° (1983)
Record low8° (2020)
Wed, 2852° / 34°0.06
52 °
Date, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.06 in
Chance of precipitation18%
Record high77° (1985)
Record low12° (1991)
Thu, 2951° / 33°0.1
51 °
Date, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.1 in
Chance of precipitation27%
Record high76° (1968)
Record low4° (1991)
Fri, 3049° / 32°0.03
49 °
Date, Friday, 30 October
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.03 in
Chance of precipitation18%
Record high76° (1968)
Record low-5° (1991)
Sat, 3149° / 32°0.04
49 °
Date, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.04 in
Chance of precipitation7%
Record high74° (1990)
Record low-1° (1991)
Sun, 0149° / 32°0.04
49 °
Date, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.04 in
Chance of precipitation10%
Record high72° (1965)
Record low3° (2002)
Mon, 0249° / 31°0.02
49 °
Date, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.02 in
Chance of precipitation17%
Record high73° (2022)
Record low-3° (1991)
Tue, 0347° / 32°0.02
47 °
Date, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.02 in
Chance of precipitation13%
Record high68° (2020)
Record low-7° (1991)
Wed, 0449° / 30°0.02
49 °
Date, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.02 in
Chance of precipitation13%
Record high74° (1978)
Record low-6° (1991)
Thu, 0548° / 30°0.03
48 °
Date, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.03 in
Chance of precipitation17%
Record high70° (2001)
Record low0° (2003)
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 Date, 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 Date, 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.