As of 14:59 MDT

Weather in Union Center, SD

57°

Union Center, Tuesday, 27 October, 14:59

Clear. Feels like 55°. High 57°, low 34°.

Pressure29.83 inHg

Wind7.8 mph NW

Humidity47%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Union Center, SD: average high 56.7°, average low 42.7°. That is 3.8° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 31 October (66.9°), the coolest 27 October (33.6°).

56.7°/42.7°

Average high / low

+3.8°

Above normal

2 / 3

Wet days / normal

0.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
27 October – 5 November	55°	51.6°	+1.9°
6 November – 15 November	59.4°	46.2°	+7.3°
16 November – 25 November	at normal	42.3°	—

October records over 66 years

94.5°3 October 2025All-time high

-6.3°26 October 2020All-time low

Wed, 2856° / 38°

0.03

56 °

Union Center, Wednesday, 28 October

Light rain. High 56°, low 38°.

Pressure29.94 inHg

Wind13.9 mph NW

Humidity38%

Visibility6.2 mi

Dew point28°

Thu, 2959° / 39°

59 °

Union Center, Thursday, 29 October

Clear. High 59°, low 39°.

Pressure30.06 inHg

Wind1.9 mph W

Humidity46%

Visibility6.2 mi

Dew point35°

Fri, 3054° / 39°

54 °

Union Center, Friday, 30 October

Mostly clear. High 54°, low 39°.

Pressure30.21 inHg

Wind9.9 mph E

Humidity63%

Visibility6.2 mi

Dew point39°

Sat, 3167° / 48°

67 °

Union Center, Saturday, 31 October

Overcast. High 67°, low 48°.

Pressure29.91 inHg

Wind17.7 mph S

Humidity67%

Visibility6.2 mi

Dew point53°

Sun, 0164° / 49°

64 °

Union Center, Sunday, 1 November

Overcast. High 64°, low 49°.

Pressure29.85 inHg

Wind11.9 mph SE

Humidity72%

Visibility—

Dew point49°

Mon, 0251° / 39°

0.11

51 °

Union Center, Monday, 2 November

Light rain. High 51°, low 39°.

Pressure29.94 inHg

Wind27.8 mph NW

Humidity65%

Visibility—

Dew point37°

Tue, 0343° / 35°

0.14

43 °

Union Center, Tuesday, 3 November

Snow. High 43°, low 35°.

Pressure30.18 inHg

Wind25 mph NW

Humidity83%

Visibility—

Dew point33°

Wed, 0448° / 43°

48 °

Union Center, Wednesday, 4 November

Overcast. High 48°, low 43°.

Pressure30.09 inHg

Wind12 mph NW

Humidity92%

Visibility—

Dew point44°

Thu, 0551° / 47°

51 °

Union Center, Thursday, 5 November

Overcast. High 51°, low 47°.

Pressure30.03 inHg

Wind10.5 mph N

Humidity73%

Visibility—

Dew point41°

Fri, 0656° / 45°

56 °

Union Center, Friday, 6 November

Overcast. High 56°, low 45°.

Pressure30.12 inHg

Wind12.7 mph SE

Humidity62%

Visibility—

Dew point40°

Sat, 0761° / 41°

61 °

Union Center, Saturday, 7 November

Clear. High 61°, low 41°.

Pressure29.94 inHg

Wind14.5 mph SE

Humidity47%

Visibility—

Dew point33°

Sun, 0864° / 46°

64 °

Union Center, Sunday, 8 November

Overcast. High 64°, low 46°.

Pressure29.85 inHg

Wind11.2 mph S

Humidity35%

Visibility—

Dew point30°

Mon, 0961° / 49°

61 °

Union Center, Monday, 9 November

Overcast. High 61°, low 49°.

Pressure29.74 inHg

Wind21.3 mph S

Humidity56%

Visibility—

Dew point42°

Tue, 1060° / 47°

60 °

Union Center, Tuesday, 10 November

Clear. High 60°, low 47°.

Pressure30.15 inHg

Wind11.9 mph NW

Humidity50%

Visibility—

Dew point36°

Wed, 1154° / 44°

54 °

Union Center, Wednesday, 11 November

Overcast. High 54°, low 44°.

Pressure30.18 inHg

Wind18.8 mph NW

Humidity43%

Visibility—

Dew point31°

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

Thu, 1245° / 26°

0.02

45 °

Union Center, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high45°

Average low26°

Average precipitation0.02 in

Chance of precipitation10%

Record high73° (1999)

Record low-12° (1986)

Fri, 1346° / 27°

0.04

46 °

Union Center, Friday, 13 November

Climate normal for this date — 60-year average.

Average high46°

Average low27°

Average precipitation0.04 in

Chance of precipitation17%

Record high71° (1990)

Record low-20° (1986)

Sat, 1446° / 29°

0.02

46 °

Union Center, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high46°

Average low29°

Average precipitation0.02 in

Chance of precipitation13%

Record high72° (1990)

Record low-1° (2014)

Sun, 1545° / 27°

0.01

45 °

Union Center, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high45°

Average low27°

Average precipitation0.01 in

Chance of precipitation8%

Record high65° (1999)

Record low-3° (1978)

Mon, 1646° / 27°

0.02

46 °

Union Center, Monday, 16 November

Climate normal for this date — 60-year average.

Average high46°

Average low27°

Average precipitation0.02 in

Chance of precipitation8%

Record high65° (1979)

Record low5° (1978)

Tue, 1744° / 27°

0.02

44 °

Union Center, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high44°

Average low27°

Average precipitation0.02 in

Chance of precipitation15%

Record high64° (1976)

Record low1° (2000)

Wed, 1844° / 26°

0.03

44 °

Union Center, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high44°

Average low26°

Average precipitation0.03 in

Chance of precipitation13%

Record high68° (2020)

Record low2° (1996)

Thu, 1943° / 27°

0.03

43 °

Union Center, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high43°

Average low27°

Average precipitation0.03 in

Chance of precipitation15%

Record high69° (2003)

Record low3° (1985)

Fri, 2042° / 25°

0.01

42 °

Union Center, Friday, 20 November

Climate normal for this date — 60-year average.

Average high42°

Average low25°

Average precipitation0.01 in

Chance of precipitation10%

Record high65° (1990)

Record low-7° (1985)

Sat, 2142° / 24°

0.02

42 °

Union Center, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high42°

Average low24°

Average precipitation0.02 in

Chance of precipitation15%

Record high66° (2012)

Record low-11° (1977)

Sun, 2242° / 24°

0.02

42 °

Union Center, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high42°

Average low24°

Average precipitation0.02 in

Chance of precipitation15%

Record high64° (2002)

Record low-6° (1985)

Mon, 2340° / 23°

0.02

40 °

Union Center, Monday, 23 November

Climate normal for this date — 60-year average.

Average high40°

Average low23°

Average precipitation0.02 in

Chance of precipitation12%

Record high66° (2017)

Record low-12° (1985)

Tue, 2441° / 23°

0.01

41 °

Union Center, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high41°

Average low23°

Average precipitation0.01 in

Chance of precipitation5%

Record high67° (1990)

Record low-14° (1996)

Wed, 2538° / 23°

0.02

38 °

Union Center, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high38°

Average low23°

Average precipitation0.02 in

Chance of precipitation18%

Record high69° (1960)

Record low-3° (1993)

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 Union Center, 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 Union Center, 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.