As of 03:07 MDT

Weather in Promise, SD

50°

Promise, Saturday, 24 October, 03:07

Overcast. Feels like 48°. High 57°, low 44°.

Pressure30.00 inHg

Wind16.9 mph NW

Humidity71%

Visibility6.2 mi

Dew point41°

See detailed hourly forecast

Monthly outlook for Promise, SD: average high 52°, average low 39°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 31 October (63.4°), the coolest 6 November (22.5°).

52°/39°

Average high / low

+0.5°

Above normal

4 / 2

Wet days / normal

0.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
24 October – 2 November	55.1°	52.6°	+1.4°
3 November – 12 November	46.8°	46.1°	+0.4°
13 November – 22 November	at normal	41.6°	—

October records over 66 years

90.1°5 October 1990All-time high

-0°26 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Virginia (6 mi).

Sun, 2551° / 41°

51 °

Promise, Sunday, 25 October

Overcast. High 51°, low 41°.

Pressure30.47 inHg

Wind7.9 mph E

Humidity47%

Visibility6.2 mi

Dew point23°

Mon, 2646° / 37°

0.59

46 °

Promise, Monday, 26 October

Rain. High 46°, low 37°.

Pressure30.42 inHg

Wind13.9 mph NE

Humidity81%

Visibility2.5 mi

Dew point33°

Tue, 2753° / 39°

53 °

Promise, Tuesday, 27 October

Overcast. High 53°, low 39°.

Pressure29.91 inHg

Wind11.5 mph S

Humidity71%

Visibility6.2 mi

Dew point37°

Wed, 2861° / 39°

61 °

Promise, Wednesday, 28 October

Clear. High 61°, low 39°.

Pressure29.97 inHg

Wind15.4 mph W

Humidity44%

Visibility—

Dew point33°

Thu, 2960° / 38°

60 °

Promise, Thursday, 29 October

Overcast. High 60°, low 38°.

Pressure30.09 inHg

Wind17.1 mph SE

Humidity47%

Visibility—

Dew point33°

Fri, 3058° / 44°

58 °

Promise, Friday, 30 October

Overcast. High 58°, low 44°.

Pressure30.09 inHg

Wind17.6 mph SE

Humidity57%

Visibility—

Dew point39°

Sat, 3163° / 49°

0.02

63 °

Promise, Saturday, 31 October

Light rain. High 63°, low 49°.

Pressure29.88 inHg

Wind12.4 mph N

Humidity73%

Visibility—

Dew point51°

Sun, 0157° / 49°

0.06

57 °

Promise, Sunday, 1 November

Light rain. High 57°, low 49°.

Pressure30.12 inHg

Wind13.6 mph NW

Humidity67%

Visibility—

Dew point43°

Mon, 0245° / 40°

0.09

45 °

Promise, Monday, 2 November

Light rain. High 45°, low 40°.

Pressure30.30 inHg

Wind21.2 mph NW

Humidity86%

Visibility—

Dew point38°

Tue, 0353° / 36°

53 °

Promise, Tuesday, 3 November

Clear. High 53°, low 36°.

Pressure30.39 inHg

Wind13.8 mph NW

Humidity39%

Visibility—

Dew point22°

Wed, 0449° / 35°

49 °

Promise, Wednesday, 4 November

Overcast. High 49°, low 35°.

Pressure30.24 inHg

Wind12.6 mph N

Humidity39%

Visibility—

Dew point23°

Thu, 0535° / 26°

35 °

Promise, Thursday, 5 November

Overcast. High 35°, low 26°.

Pressure30.47 inHg

Wind11.5 mph N

Humidity28%

Visibility—

Dew point3°

Fri, 0635° / 23°

35 °

Promise, Friday, 6 November

Mostly clear. High 35°, low 23°.

Pressure30.50 inHg

Wind20.2 mph S

Humidity35%

Visibility—

Dew point6°

Sat, 0757° / 37°

0.01

57 °

Promise, Saturday, 7 November

Light rain. High 57°, low 37°.

Pressure29.74 inHg

Wind17.1 mph SE

Humidity60%

Visibility—

Dew point33°

Sun, 0854° / 47°

0.04

54 °

Promise, Sunday, 8 November

Light rain. High 54°, low 47°.

Pressure30.00 inHg

Wind20.5 mph W

Humidity61%

Visibility—

Dew point37°

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

Mon, 0944° / 30°

0.04

44 °

Promise, Monday, 9 November

Climate normal for this date — 60-year average.

Average high44°

Average low30°

Average precipitation0.04 in

Chance of precipitation22%

Record high67° (2001)

Record low10° (2018)

Tue, 1043° / 27°

0.06

43 °

Promise, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high43°

Average low27°

Average precipitation0.06 in

Chance of precipitation23%

Record high67° (1989)

Record low1° (1986)

Wed, 1141° / 27°

0.01

41 °

Promise, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high41°

Average low27°

Average precipitation0.01 in

Chance of precipitation10%

Record high66° (2005)

Record low-1° (1986)

Thu, 1242° / 27°

0.03

42 °

Promise, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high42°

Average low27°

Average precipitation0.03 in

Chance of precipitation13%

Record high65° (2016)

Record low-5° (2022)

Fri, 1345° / 28°

0.02

45 °

Promise, Friday, 13 November

Climate normal for this date — 60-year average.

Average high45°

Average low28°

Average precipitation0.02 in

Chance of precipitation20%

Record high68° (1999)

Record low-5° (1986)

Sat, 1444° / 29°

0.02

44 °

Promise, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high44°

Average low29°

Average precipitation0.02 in

Chance of precipitation10%

Record high68° (2025)

Record low1° (2014)

Sun, 1542° / 28°

0.02

42 °

Promise, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high42°

Average low28°

Average precipitation0.02 in

Chance of precipitation13%

Record high62° (1975)

Record low3° (2014)

Mon, 1643° / 28°

0.02

43 °

Promise, Monday, 16 November

Climate normal for this date — 60-year average.

Average high43°

Average low28°

Average precipitation0.02 in

Chance of precipitation7%

Record high65° (2001)

Record low-2° (2022)

Tue, 1742° / 28°

0.02

42 °

Promise, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high42°

Average low28°

Average precipitation0.02 in

Chance of precipitation15%

Record high65° (2001)

Record low5° (1996)

Wed, 1842° / 26°

0.04

42 °

Promise, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high42°

Average low26°

Average precipitation0.04 in

Chance of precipitation20%

Record high58° (2020)

Record low1° (2022)

Thu, 1941° / 28°

0.03

41 °

Promise, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high41°

Average low28°

Average precipitation0.03 in

Chance of precipitation15%

Record high63° (1989)

Record low8° (1985)

Fri, 2039° / 26°

0.02

39 °

Promise, Friday, 20 November

Climate normal for this date — 60-year average.

Average high39°

Average low26°

Average precipitation0.02 in

Chance of precipitation8%

Record high62° (1962)

Record low1° (1985)

Sat, 2139° / 25°

0.01

39 °

Promise, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high39°

Average low25°

Average precipitation0.01 in

Chance of precipitation13%

Record high62° (1960)

Record low0° (1977)

Sun, 2240° / 24°

0.02

40 °

Promise, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high40°

Average low24°

Average precipitation0.02 in

Chance of precipitation18%

Record high60° (2005)

Record low1° (1985)

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 Promise, 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 Promise, 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.