As of 03:28 CDT

Weather in Union, MN

54°

Union, Wednesday, 7 October, 03:28

Clear. Feels like 53°. High 75°, low 53°.

Pressure29.85 inHg

Wind5.3 mph NW

Humidity81%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

Monthly outlook for Union, MN: average high 61.5°, average low 45.7°. That is 2° above the climate normal for October. Precipitation is expected on 3 days (about 2.1 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 10 October (81°), the coolest 18 October (33.3°).

61.5°/45.7°

Average high / low

+2°

Above normal

3 / 4

Wet days / normal

2.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
7 October – 16 October	64.2°	59.1°	+2.8°
17 October – 26 October	56.9°	55.2°	+0.9°
27 October – 5 November	at normal	50.1°	—

October records over 66 years

88.2°3 October 2025All-time high

16.2°27 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Ellendale (9 mi).

Thu, 0868° / 46°

68 °

Union, Thursday, 8 October

Overcast. High 68°, low 46°.

Pressure30.15 inHg

Wind4.4 mph W

Humidity47%

Visibility6.2 mi

Dew point41°

Fri, 0972° / 50°

72 °

Union, Friday, 9 October

Partly cloudy. High 72°, low 50°.

Pressure29.97 inHg

Wind14.9 mph SE

Humidity52%

Visibility6.2 mi

Dew point49°

Sat, 1081° / 66°

81 °

Union, Saturday, 10 October

Clear. High 81°, low 66°.

Pressure29.83 inHg

Wind19.2 mph S

Humidity46%

Visibility6.2 mi

Dew point55°

Sun, 1179° / 62°

79 °

Union, Sunday, 11 October

Clear. High 79°, low 62°.

Pressure29.77 inHg

Wind16.2 mph S

Humidity42%

Visibility—

Dew point50°

Mon, 1266° / 45°

0.23

66 °

Union, Monday, 12 October

Rain. High 66°, low 45°.

Pressure29.91 inHg

Wind16.5 mph N

Humidity61%

Visibility—

Dew point44°

Tue, 1346° / 40°

0.01

46 °

Union, Tuesday, 13 October

Light rain. High 46°, low 40°.

Pressure30.18 inHg

Wind10.1 mph N

Humidity79%

Visibility—

Dew point37°

Wed, 1452° / 41°

1.79

52 °

Union, Wednesday, 14 October

Heavy rain. High 52°, low 41°.

Pressure29.88 inHg

Wind20.1 mph S

Humidity89%

Visibility—

Dew point45°

Thu, 1561° / 45°

0.1

61 °

Union, Thursday, 15 October

Light rain. High 61°, low 45°.

Pressure29.71 inHg

Wind19.2 mph NW

Humidity90%

Visibility—

Dew point48°

Fri, 1642° / 38°

42 °

Union, Friday, 16 October

Overcast. High 42°, low 38°.

Pressure30.15 inHg

Wind18.6 mph NW

Humidity57%

Visibility—

Dew point27°

Sat, 1745° / 34°

45 °

Union, Saturday, 17 October

Partly cloudy. High 45°, low 34°.

Pressure30.36 inHg

Wind15.7 mph NW

Humidity49%

Visibility—

Dew point24°

Sun, 1862° / 33°

62 °

Union, Sunday, 18 October

Overcast. High 62°, low 33°.

Pressure29.88 inHg

Wind19.2 mph SW

Humidity35%

Visibility—

Dew point26°

Mon, 1956° / 40°

56 °

Union, Monday, 19 October

Overcast. High 56°, low 40°.

Pressure30.09 inHg

Wind6.7 mph NW

Humidity53%

Visibility—

Dew point35°

Tue, 2060° / 42°

60 °

Union, Tuesday, 20 October

Overcast. High 60°, low 42°.

Pressure30.24 inHg

Wind7.7 mph SE

Humidity50%

Visibility—

Dew point38°

Wed, 2164° / 46°

64 °

Union, Wednesday, 21 October

Overcast. High 64°, low 46°.

Pressure30.12 inHg

Wind9.7 mph S

Humidity58%

Visibility—

Dew point43°

Thu, 2254° / 50°

54 °

Union, Thursday, 22 October

Overcast. High 54°, low 50°.

Pressure30.06 inHg

Wind22.9 mph NW

Humidity54%

Visibility—

Dew point36°

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

Fri, 2355° / 41°

0.11

55 °

Union, Friday, 23 October

Climate normal for this date — 60-year average.

Average high55°

Average low41°

Average precipitation0.11 in

Chance of precipitation38%

Record high78° (1963)

Record low22° (1981)

Sat, 2455° / 39°

0.12

55 °

Union, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high55°

Average low39°

Average precipitation0.12 in

Chance of precipitation32%

Record high74° (1989)

Record low20° (2020)

Sun, 2553° / 39°

0.06

53 °

Union, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high53°

Average low39°

Average precipitation0.06 in

Chance of precipitation22%

Record high77° (1989)

Record low25° (2020)

Mon, 2654° / 38°

0.04

54 °

Union, Monday, 26 October

Climate normal for this date — 60-year average.

Average high54°

Average low38°

Average precipitation0.04 in

Chance of precipitation17%

Record high75° (1989)

Record low21° (2020)

Tue, 2753° / 38°

0.07

53 °

Union, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.07 in

Chance of precipitation30%

Record high69° (1966)

Record low16° (2020)

Wed, 2851° / 37°

0.06

51 °

Union, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.06 in

Chance of precipitation23%

Record high73° (2016)

Record low20° (1967)

Thu, 2952° / 37°

0.07

52 °

Union, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.07 in

Chance of precipitation25%

Record high78° (2024)

Record low22° (1988)

Fri, 3052° / 38°

0.06

52 °

Union, Friday, 30 October

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.06 in

Chance of precipitation28%

Record high73° (2024)

Record low20° (1988)

Sat, 3151° / 36°

0.11

51 °

Union, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.11 in

Chance of precipitation32%

Record high70° (1968)

Record low20° (1996)

Sun, 0149° / 35°

0.1

49 °

Union, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.1 in

Chance of precipitation28%

Record high69° (2000)

Record low20° (1996)

Mon, 0249° / 35°

0.05

49 °

Union, Monday, 2 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.05 in

Chance of precipitation17%

Record high71° (2022)

Record low11° (1991)

Tue, 0348° / 34°

0.06

48 °

Union, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high48°

Average low34°

Average precipitation0.06 in

Chance of precipitation23%

Record high71° (2008)

Record low5° (1991)

Wed, 0448° / 33°

0.05

48 °

Union, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.05 in

Chance of precipitation20%

Record high70° (2008)

Record low-8° (1991)

Thu, 0548° / 33°

0.07

48 °

Union, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.07 in

Chance of precipitation27%

Record high67° (2016)

Record low12° (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 Union, MN 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, MN 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.