As of 18:13 MDT

Weather in Union Center, SD

53°

Union Center, Friday, 30 October, 18:13

Overcast. Feels like 52°. High 56°, low 37°.

Pressure30.03 inHg

Wind10 mph E

Humidity78%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

Monthly outlook for Union Center, SD: average high 55.4°, average low 43.1°. That is 4° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 31 October (66.8°), the coolest 14 November (36.8°).

55.4°/43.1°

Average high / low

+4°

Above normal

3 / 2

Wet days / normal

0.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
30 October – 8 November	56.3°	50.3°	+3.4°
9 November – 18 November	54°	44.8°	+5.1°
19 November – 28 November	at normal	39.6°	—

October records over 66 years

94.5°3 October 2025All-time high

-6.3°26 October 2020All-time low

Sat, 3167° / 48°

67 °

Union Center, Saturday, 31 October

Overcast. High 67°, low 48°.

Pressure29.97 inHg

Wind12.7 mph SE

Humidity92%

Visibility—

Dew point53°

Sun, 0164° / 46°

64 °

Union Center, Sunday, 1 November

Light rain. High 64°, low 46°.

Pressure29.91 inHg

Wind7.8 mph SE

Humidity71%

Visibility6.2 mi

Dew point48°

Mon, 0255° / 44°

0.19

55 °

Union Center, Monday, 2 November

Rain. High 55°, low 44°.

Pressure29.71 inHg

Wind20.1 mph NW

Humidity87%

Visibility5.1 mi

Dew point51°

Tue, 0347° / 43°

0.14

47 °

Union Center, Tuesday, 3 November

Light rain. High 47°, low 43°.

Pressure30.06 inHg

Wind19.9 mph NW

Humidity88%

Visibility6.2 mi

Dew point42°

Wed, 0449° / 42°

49 °

Union Center, Wednesday, 4 November

Overcast. High 49°, low 42°.

Pressure29.97 inHg

Wind9.1 mph N

Humidity75%

Visibility—

Dew point40°

Thu, 0556° / 43°

56 °

Union Center, Thursday, 5 November

Overcast. High 56°, low 43°.

Pressure29.94 inHg

Wind9.3 mph NW

Humidity43%

Visibility—

Dew point30°

Fri, 0659° / 45°

59 °

Union Center, Friday, 6 November

Overcast. High 59°, low 45°.

Pressure29.77 inHg

Wind7.5 mph NE

Humidity37%

Visibility—

Dew point29°

Sat, 0755° / 42°

55 °

Union Center, Saturday, 7 November

Overcast. High 55°, low 42°.

Pressure30.03 inHg

Wind17.4 mph N

Humidity56%

Visibility—

Dew point36°

Sun, 0855° / 38°

55 °

Union Center, Sunday, 8 November

Clear. High 55°, low 38°.

Pressure30.27 inHg

Wind10.8 mph NW

Humidity40%

Visibility—

Dew point26°

Mon, 0949° / 46°

0.09

49 °

Union Center, Monday, 9 November

Light rain. High 49°, low 46°.

Pressure30.12 inHg

Wind7.3 mph NE

Humidity94%

Visibility—

Dew point46°

Tue, 1056° / 49°

0.03

56 °

Union Center, Tuesday, 10 November

Light rain. High 56°, low 49°.

Pressure29.83 inHg

Wind5.1 mph SE

Humidity70%

Visibility—

Dew point44°

Wed, 1159° / 46°

59 °

Union Center, Wednesday, 11 November

Overcast. High 59°, low 46°.

Pressure29.71 inHg

Wind14 mph SE

Humidity49%

Visibility—

Dew point36°

Thu, 1258° / 44°

58 °

Union Center, Thursday, 12 November

Clear. High 58°, low 44°.

Pressure29.62 inHg

Wind17.7 mph NW

Humidity35%

Visibility—

Dew point27°

Fri, 1352° / 39°

52 °

Union Center, Friday, 13 November

Overcast. High 52°, low 39°.

Pressure29.94 inHg

Wind21.3 mph NW

Humidity38%

Visibility—

Dew point24°

Sat, 1450° / 37°

50 °

Union Center, Saturday, 14 November

Clear. High 50°, low 37°.

Pressure29.80 inHg

Wind10.8 mph E

Humidity38%

Visibility—

Dew point22°

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

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)

Thu, 2636° / 22°

0.05

36 °

Union Center, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high36°

Average low22°

Average precipitation0.05 in

Chance of precipitation30%

Record high63° (1963)

Record low-13° (1985)

Fri, 2735° / 21°

0.02

35 °

Union Center, Friday, 27 November

Climate normal for this date — 60-year average.

Average high35°

Average low21°

Average precipitation0.02 in

Chance of precipitation12%

Record high62° (2017)

Record low-17° (1985)

Sat, 2836° / 21°

0.02

36 °

Union Center, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high36°

Average low21°

Average precipitation0.02 in

Chance of precipitation10%

Record high58° (2002)

Record low-10° (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 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.