As of 00:50 MDT

Weather in Chance, SD

52°

Chance, Sunday, 11 October, 00:50

Overcast. Feels like 50°. High 54°, low 43°.

Pressure29.68 inHg

Wind12.5 mph NE

Humidity74%

Visibility6.2 mi

Dew point44°

See detailed hourly forecast

Monthly outlook for Chance, SD: average high 60.8°, average low 43°. That is 2.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 20 October (77°), the coolest 17 October (27°).

60.8°/43°

Average high / low

+2.5°

Above normal

2 / 3

Wet days / normal

0.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
11 October – 20 October	59.6°	57.1°	+1.4°
21 October – 30 October	62.8°	53.4°	+5.2°
31 October – 9 November	at normal	47.3°	—

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).

Mon, 1251° / 43°

0.04

51 °

Chance, Monday, 12 October

Light rain. High 51°, low 43°.

Pressure29.88 inHg

Wind10.5 mph NW

Humidity90%

Visibility6.2 mi

Dew point45°

Tue, 1348° / 41°

0.01

48 °

Chance, Tuesday, 13 October

Light rain. High 48°, low 41°.

Pressure30.09 inHg

Wind3.5 mph NW

Humidity63%

Visibility6.2 mi

Dew point34°

Wed, 1456° / 37°

56 °

Chance, Wednesday, 14 October

Clear. High 56°, low 37°.

Pressure30.33 inHg

Wind1.1 mph NW

Humidity53%

Visibility6.2 mi

Dew point36°

Thu, 1565° / 44°

0.07

65 °

Chance, Thursday, 15 October

Light rain. High 65°, low 44°.

Pressure30.36 inHg

Wind14.1 mph N

Humidity53%

Visibility—

Dew point42°

Fri, 1648° / 33°

48 °

Chance, Friday, 16 October

Clear. High 48°, low 33°.

Pressure30.71 inHg

Wind16.7 mph W

Humidity45%

Visibility—

Dew point26°

Sat, 1752° / 27°

52 °

Chance, Saturday, 17 October

Mostly clear. High 52°, low 27°.

Pressure30.42 inHg

Wind24.2 mph S

Humidity22%

Visibility—

Dew point6°

Sun, 1869° / 43°

69 °

Chance, Sunday, 18 October

Overcast. High 69°, low 43°.

Pressure30.03 inHg

Wind14.2 mph NW

Humidity28%

Visibility—

Dew point30°

Mon, 1977° / 51°

77 °

Chance, Monday, 19 October

Clear. High 77°, low 51°.

Pressure30.03 inHg

Wind10.5 mph S

Humidity23%

Visibility—

Dew point30°

Tue, 2077° / 52°

77 °

Chance, Tuesday, 20 October

Partly cloudy. High 77°, low 52°.

Pressure29.80 inHg

Wind10.6 mph NW

Humidity22%

Visibility—

Dew point29°

Wed, 2162° / 50°

62 °

Chance, Wednesday, 21 October

Partly cloudy. High 62°, low 50°.

Pressure30.09 inHg

Wind19.9 mph NW

Humidity43%

Visibility—

Dew point35°

Thu, 2262° / 43°

62 °

Chance, Thursday, 22 October

Overcast. High 62°, low 43°.

Pressure30.21 inHg

Wind8 mph S

Humidity40%

Visibility—

Dew point32°

Fri, 2362° / 45°

62 °

Chance, Friday, 23 October

Overcast. High 62°, low 45°.

Pressure30.24 inHg

Wind8.3 mph E

Humidity44%

Visibility—

Dew point35°

Sat, 2460° / 42°

60 °

Chance, Saturday, 24 October

Clear. High 60°, low 42°.

Pressure30.15 inHg

Wind12.9 mph SE

Humidity54%

Visibility—

Dew point38°

Sun, 2561° / 42°

61 °

Chance, Sunday, 25 October

Overcast. High 61°, low 42°.

Pressure30.00 inHg

Wind13 mph S

Humidity74%

Visibility—

Dew point44°

Mon, 2669° / 51°

69 °

Chance, Monday, 26 October

Clear. High 69°, low 51°.

Pressure29.74 inHg

Wind17.3 mph NW

Humidity20%

Visibility—

Dew point24°

From day 17 onward the outlook is built from 60-year climate statistics

Tue, 2752° / 34°

0.04

52 °

Chance, 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 °

Chance, 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 °

Chance, 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 °

Chance, 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 °

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)

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.