Monthly outlook for Chance, SD: average high 56°, average low 39.8°. That is 0.7° above the climate normal for October. Precipitation is expected on 3 days (about 2.1 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 22 October (76.3°), the coolest 30 October (28.8°).
56°/39.8°
Average high / low
+0.7°
Above normal
3 / 3
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
61.8°
56.1°
+3.2°
25 October – 3 November
46.1°
50.8°
-2.6°
4 November – 13 November
at normal
44.6°
—
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 (12 mi).
Fri, 1652° / 33°0
52 °
Chance, Friday, 16 October
Clear. High 52°, low 33°.
Pressure30.71 inHg
Wind6.6 mph SW
Humidity55%
Visibility6.2 mi
Dew point27°
Sat, 1772° / 36°0
72 °
Chance, Saturday, 17 October
Clear. High 72°, low 36°.
Pressure30.03 inHg
Wind7.7 mph SW
Humidity32%
Visibility6.2 mi
Dew point35°
Sun, 1864° / 48°0
64 °
Chance, Sunday, 18 October
Clear. High 64°, low 48°.
Pressure30.15 inHg
Wind11.8 mph NE
Humidity35%
Visibility6.2 mi
Dew point34°
Mon, 1961° / 41°0
61 °
Chance, Monday, 19 October
Clear. High 61°, low 41°.
Pressure30.12 inHg
Wind9.6 mph SE
Humidity55%
Visibility—
Dew point39°
Tue, 2067° / 44°0
67 °
Chance, Tuesday, 20 October
Clear. High 67°, low 44°.
Pressure30.00 inHg
Wind14.9 mph SE
Humidity64%
Visibility—
Dew point46°
Wed, 2171° / 52°0
71 °
Chance, Wednesday, 21 October
Mostly clear. High 71°, low 52°.
Pressure29.85 inHg
Wind15.8 mph SE
Humidity63%
Visibility—
Dew point53°
Thu, 2276° / 56°0.02
76 °
Chance, Thursday, 22 October
Light rain. High 76°, low 56°.
Pressure29.65 inHg
Wind15.6 mph S
Humidity57%
Visibility—
Dew point54°
Fri, 2362° / 41°1.54
62 °
Chance, Friday, 23 October
Heavy rain. High 62°, low 41°.
Pressure29.68 inHg
Wind28.8 mph NW
Humidity69%
Visibility—
Dew point40°
Sat, 2443° / 37°0.43
43 °
Chance, Saturday, 24 October
Snow. High 43°, low 37°.
Pressure30.15 inHg
Wind32.9 mph NW
Humidity54%
Visibility—
Dew point24°
Sun, 2546° / 34°0
46 °
Chance, Sunday, 25 October
Clear. High 46°, low 34°.
Pressure30.33 inHg
Wind18.9 mph NW
Humidity40%
Visibility—
Dew point19°
Mon, 2642° / 34°0.02
42 °
Chance, Monday, 26 October
Snow. High 42°, low 34°.
Pressure30.42 inHg
Wind9.7 mph NW
Humidity58%
Visibility—
Dew point27°
Tue, 2754° / 38°0.01
54 °
Chance, Tuesday, 27 October
Light rain. High 54°, low 38°.
Pressure30.15 inHg
Wind12.2 mph NW
Humidity54%
Visibility—
Dew point32°
Wed, 2851° / 42°0.06
51 °
Chance, Wednesday, 28 October
Light rain. High 51°, low 42°.
Pressure29.97 inHg
Wind8.9 mph SE
Humidity84%
Visibility—
Dew point41°
Thu, 2950° / 33°0
50 °
Chance, Thursday, 29 October
Overcast. High 50°, low 33°.
Pressure30.18 inHg
Wind15 mph NE
Humidity69%
Visibility—
Dew point39°
Fri, 3035° / 29°0
35 °
Chance, Friday, 30 October
Overcast. High 35°, low 29°.
Pressure30.59 inHg
Wind14.4 mph SE
Humidity64%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3149° / 32°0.04
49 °
Chance, 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 °
Chance, 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 °
Chance, 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 °
Chance, 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 °
Chance, 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 °
Chance, 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)
Fri, 0647° / 29°0.03
47 °
Chance, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation8%
Record high70° (2009)
Record low-2° (1991)
Sat, 0747° / 29°0.04
47 °
Chance, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.04 in
Chance of precipitation12%
Record high72° (1999)
Record low-10° (1991)
Sun, 0845° / 29°0.03
45 °
Chance, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high73° (1999)
Record low2° (2000)
Mon, 0942° / 26°0.05
42 °
Chance, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.05 in
Chance of precipitation17%
Record high69° (2016)
Record low-4° (2000)
Tue, 1042° / 25°0.06
42 °
Chance, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.06 in
Chance of precipitation23%
Record high69° (2007)
Record low-6° (1986)
Wed, 1140° / 24°0.01
40 °
Chance, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.01 in
Chance of precipitation8%
Record high65° (2005)
Record low-7° (1986)
Thu, 1242° / 24°0.02
42 °
Chance, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.02 in
Chance of precipitation12%
Record high73° (1999)
Record low-7° (1986)
Fri, 1344° / 26°0.02
44 °
Chance, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.02 in
Chance of precipitation13%
Record high66° (1990)
Record low-18° (1986)
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 Chance, 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 Chance, 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.