As of 16:36 MDT

Weather in Promise, SD

72°

Promise, Saturday, 17 October, 16:36

Mostly clear. Feels like 71°. High 72°, low 37°.

Pressure29.94 inHg

Wind8.3 mph S

Humidity39%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

Monthly outlook for Promise, SD: average high 66.2°, average low 47°. That is 6.2° above the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 28 October (74.7°), the coolest 17 October (37.3°).

66.2°/47°

Average high / low

+6.2°

Above normal

2 / 3

Wet days / normal

0.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
17 October – 26 October	65.8°	57.1°	+4.8°
27 October – 5 November	67°	50.6°	+9.1°
6 November – 15 November	at normal	44.4°	—

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, 1867° / 43°

67 °

Promise, Sunday, 18 October

Clear. High 67°, low 43°.

Pressure30.06 inHg

Wind12.1 mph N

Humidity40%

Visibility6.2 mi

Dew point40°

Mon, 1962° / 42°

62 °

Promise, Monday, 19 October

Clear. High 62°, low 42°.

Pressure30.24 inHg

Wind7.6 mph E

Humidity46%

Visibility6.2 mi

Dew point38°

Tue, 2067° / 46°

67 °

Promise, Tuesday, 20 October

Clear. High 67°, low 46°.

Pressure30.06 inHg

Wind9.5 mph S

Humidity65%

Visibility6.2 mi

Dew point49°

Wed, 2167° / 49°

67 °

Promise, Wednesday, 21 October

Clear. High 67°, low 49°.

Pressure30.21 inHg

Wind7.6 mph NE

Humidity70%

Visibility6.2 mi

Dew point51°

Thu, 2273° / 50°

73 °

Promise, Thursday, 22 October

Clear. High 73°, low 50°.

Pressure30.06 inHg

Wind17.4 mph SE

Humidity66%

Visibility—

Dew point53°

Fri, 2371° / 61°

0.05

71 °

Promise, Friday, 23 October

Light rain. High 71°, low 61°.

Pressure29.77 inHg

Wind16.6 mph N

Humidity73%

Visibility—

Dew point59°

Sat, 2459° / 46°

0.06

59 °

Promise, Saturday, 24 October

Light rain. High 59°, low 46°.

Pressure30.21 inHg

Wind16.6 mph N

Humidity46%

Visibility—

Dew point33°

Sun, 2560° / 43°

60 °

Promise, Sunday, 25 October

Clear. High 60°, low 43°.

Pressure30.12 inHg

Wind7.4 mph NW

Humidity48%

Visibility—

Dew point35°

Mon, 2660° / 43°

60 °

Promise, Monday, 26 October

Clear. High 60°, low 43°.

Pressure30.27 inHg

Wind10.5 mph SE

Humidity40%

Visibility—

Dew point30°

Tue, 2766° / 46°

66 °

Promise, Tuesday, 27 October

Clear. High 66°, low 46°.

Pressure30.09 inHg

Wind22.5 mph S

Humidity47%

Visibility—

Dew point39°

Wed, 2875° / 55°

75 °

Promise, Wednesday, 28 October

Overcast. High 75°, low 55°.

Pressure29.53 inHg

Wind22.5 mph S

Humidity48%

Visibility—

Dew point49°

Thu, 2973° / 55°

73 °

Promise, Thursday, 29 October

Clear. High 73°, low 55°.

Pressure29.59 inHg

Wind14.5 mph SW

Humidity23%

Visibility—

Dew point30°

Fri, 3060° / 45°

60 °

Promise, Friday, 30 October

Overcast. High 60°, low 45°.

Pressure29.65 inHg

Wind16.6 mph NW

Humidity22%

Visibility—

Dew point20°

Sat, 3167° / 43°

67 °

Promise, Saturday, 31 October

Mostly clear. High 67°, low 43°.

Pressure29.68 inHg

Wind15.6 mph S

Humidity28%

Visibility—

Dew point25°

Sun, 0161° / 47°

61 °

Promise, Sunday, 1 November

Overcast. High 61°, low 47°.

Pressure29.83 inHg

Wind19.6 mph NW

Humidity18%

Visibility—

Dew point16°

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

Mon, 0250° / 34°

0.02

50 °

Promise, Monday, 2 November

Climate normal for this date — 60-year average.

Average high50°

Average low34°

Average precipitation0.02 in

Chance of precipitation18%

Record high73° (2022)

Record low6° (1991)

Tue, 0349° / 35°

0.04

49 °

Promise, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.04 in

Chance of precipitation17%

Record high71° (1978)

Record low2° (1991)

Wed, 0449° / 33°

0.01

49 °

Promise, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°

Average low33°

Average precipitation0.01 in

Chance of precipitation7%

Record high76° (1978)

Record low2° (1991)

Thu, 0549° / 33°

0.04

49 °

Promise, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high49°

Average low33°

Average precipitation0.04 in

Chance of precipitation18%

Record high69° (1975)

Record low7° (2003)

Fri, 0649° / 32°

0.02

49 °

Promise, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°

Average low32°

Average precipitation0.02 in

Chance of precipitation10%

Record high71° (2016)

Record low8° (1991)

Sat, 0748° / 32°

0.04

48 °

Promise, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high48°

Average low32°

Average precipitation0.04 in

Chance of precipitation13%

Record high71° (2006)

Record low7° (1991)

Sun, 0847° / 32°

0.05

47 °

Promise, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high47°

Average low32°

Average precipitation0.05 in

Chance of precipitation13%

Record high73° (1999)

Record low9° (2003)

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)

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.