As of 14:27 MDT

Weather in Chance, SD

81°

Chance, Friday, 9 October, 14:27

Partly cloudy. Feels like 80°. High 81°, low 46°.

Pressure29.62 inHg

Wind14.6 mph S

Humidity38%

Visibility6.2 mi

Dew point52°

See detailed hourly forecast

Monthly outlook for Chance, SD: average high 58.7°, average low 41.3°. That is 0.9° above the climate normal for October. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 10 October (80.7°), the coolest 17 October (29.4°).

58.7°/41.3°

Average high / low

+0.9°

Above normal

4 / 3

Wet days / normal

1.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	57.4°	57.5°	-0°
19 October – 28 October	60.8°	55.1°	+3.1°
29 October – 7 November	at normal	48.5°	—

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 (12 mi).

Sat, 1081° / 57°

81 °

Chance, Saturday, 10 October

Clear. High 81°, low 57°.

Pressure29.50 inHg

Wind10.8 mph W

Humidity27%

Visibility6.2 mi

Dew point39°

Sun, 1156° / 45°

0.08

56 °

Chance, Sunday, 11 October

Light rain. High 56°, low 45°.

Pressure29.88 inHg

Wind13.7 mph NE

Humidity76%

Visibility6.2 mi

Dew point46°

Mon, 1250° / 43°

0.14

50 °

Chance, Monday, 12 October

Rain. High 50°, low 43°.

Pressure29.91 inHg

Wind6.7 mph E

Humidity82%

Visibility6.2 mi

Dew point43°

Tue, 1349° / 43°

0.09

49 °

Chance, Tuesday, 13 October

Light rain. High 49°, low 43°.

Pressure30.12 inHg

Wind4.5 mph N

Humidity67%

Visibility6.2 mi

Dew point35°

Wed, 1456° / 44°

56 °

Chance, Wednesday, 14 October

Overcast. High 56°, low 44°.

Pressure30.24 inHg

Wind8.4 mph SE

Humidity59%

Visibility—

Dew point38°

Thu, 1553° / 44°

1.06

53 °

Chance, Thursday, 15 October

Rain. High 53°, low 44°.

Pressure30.09 inHg

Wind31.3 mph NW

Humidity58%

Visibility—

Dew point36°

Fri, 1643° / 34°

43 °

Chance, Friday, 16 October

Overcast. High 43°, low 34°.

Pressure30.47 inHg

Wind33 mph NW

Humidity50%

Visibility—

Dew point21°

Sat, 1746° / 29°

46 °

Chance, Saturday, 17 October

Overcast. High 46°, low 29°.

Pressure30.45 inHg

Wind19 mph SE

Humidity31%

Visibility—

Dew point12°

Sun, 1860° / 37°

60 °

Chance, Sunday, 18 October

Overcast. High 60°, low 37°.

Pressure30.12 inHg

Wind7.8 mph NW

Humidity36%

Visibility—

Dew point27°

Mon, 1966° / 45°

66 °

Chance, Monday, 19 October

Clear. High 66°, low 45°.

Pressure30.12 inHg

Wind14.9 mph SE

Humidity37%

Visibility—

Dew point32°

Tue, 2068° / 48°

68 °

Chance, Tuesday, 20 October

Overcast. High 68°, low 48°.

Pressure29.85 inHg

Wind20.9 mph NW

Humidity21%

Visibility—

Dew point24°

Wed, 2165° / 41°

65 °

Chance, Wednesday, 21 October

Clear. High 65°, low 41°.

Pressure30.09 inHg

Wind14.5 mph S

Humidity32%

Visibility—

Dew point27°

Thu, 2257° / 41°

57 °

Chance, Thursday, 22 October

Partly cloudy. High 57°, low 41°.

Pressure30.21 inHg

Wind31.8 mph NW

Humidity62%

Visibility—

Dew point33°

Fri, 2347° / 31°

47 °

Chance, Friday, 23 October

Partly cloudy. High 47°, low 31°.

Pressure30.39 inHg

Wind12.2 mph NW

Humidity42%

Visibility—

Dew point20°

Sat, 2462° / 33°

62 °

Chance, Saturday, 24 October

Mostly clear. High 62°, low 33°.

Pressure30.03 inHg

Wind11.5 mph SE

Humidity27%

Visibility—

Dew point17°

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

Sun, 2555° / 36°

0.01

55 °

Chance, 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 °

Chance, 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 °

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)

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.