As of 08:45 EDT

Weather in Union, IN

50°

Union, Wednesday, 7 October, 08:45

Clear. Feels like 47°. High 83°, low 50°.

Pressure29.97 inHg

Wind6.6 mph SW

Humidity83%

Visibility6.2 mi

Dew point45°

See detailed hourly forecast

Monthly outlook for Union, IN: average high 71.7°, average low 49.9°. That is 2.4° above the climate normal for October. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 15 October (90.2°), the coolest 18 October (35.6°).

71.7°/49.9°

Average high / low

+2.4°

Above normal

5 / 4

Wet days / normal

1.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
7 October – 16 October	78.8°	68.8°	+5.5°
17 October – 26 October	59.8°	64.3°	-2.5°
27 October – 5 November	at normal	60.9°	—

October records over 66 years

90.9°2 October 2019All-time high

26.2°26 October 1962All-time low

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

Thu, 0881° / 52°

81 °

Union, Thursday, 8 October

Clear. High 81°, low 52°.

Pressure30.12 inHg

Wind2.7 mph E

Humidity35%

Visibility6.2 mi

Dew point45°

Fri, 0984° / 55°

84 °

Union, Friday, 9 October

Clear. High 84°, low 55°.

Pressure30.21 inHg

Wind6.4 mph SE

Humidity40%

Visibility6.2 mi

Dew point50°

Sat, 1081° / 62°

0.04

81 °

Union, Saturday, 10 October

Light rain. High 81°, low 62°.

Pressure30.18 inHg

Wind5.8 mph SE

Humidity41%

Visibility6.2 mi

Dew point51°

Sun, 1172° / 63°

0.66

72 °

Union, Sunday, 11 October

Heavy rain. High 72°, low 63°.

Pressure29.77 inHg

Wind15.7 mph E

Humidity79%

Visibility—

Dew point63°

Mon, 1285° / 58°

85 °

Union, Monday, 12 October

Clear. High 85°, low 58°.

Pressure29.88 inHg

Wind12.4 mph SW

Humidity53%

Visibility—

Dew point60°

Tue, 1373° / 56°

0.02

73 °

Union, Tuesday, 13 October

Light rain. High 73°, low 56°.

Pressure29.91 inHg

Wind14.5 mph NE

Humidity73%

Visibility—

Dew point62°

Wed, 1470° / 45°

70 °

Union, Wednesday, 14 October

Mostly clear. High 70°, low 45°.

Pressure30.09 inHg

Wind12.3 mph E

Humidity40%

Visibility—

Dew point39°

Thu, 1590° / 57°

0.11

90 °

Union, Thursday, 15 October

Light rain. High 90°, low 57°.

Pressure29.88 inHg

Wind18.1 mph S

Humidity46%

Visibility—

Dew point60°

Fri, 1668° / 52°

0.42

68 °

Union, Friday, 16 October

Rain. High 68°, low 52°.

Pressure30.06 inHg

Wind15.2 mph NW

Humidity40%

Visibility—

Dew point38°

Sat, 1751° / 42°

51 °

Union, Saturday, 17 October

Partly cloudy. High 51°, low 42°.

Pressure30.18 inHg

Wind17.4 mph NW

Humidity41%

Visibility—

Dew point27°

Sun, 1855° / 36°

55 °

Union, Sunday, 18 October

Clear. High 55°, low 36°.

Pressure30.30 inHg

Wind8.7 mph NW

Humidity33%

Visibility—

Dew point23°

Mon, 1962° / 39°

62 °

Union, Monday, 19 October

Overcast. High 62°, low 39°.

Pressure30.33 inHg

Wind6.9 mph S

Humidity29%

Visibility—

Dew point25°

Tue, 2066° / 41°

66 °

Union, Tuesday, 20 October

Mostly clear. High 66°, low 41°.

Pressure30.45 inHg

Wind7.1 mph E

Humidity25%

Visibility—

Dew point25°

Wed, 2166° / 44°

66 °

Union, Wednesday, 21 October

Overcast. High 66°, low 44°.

Pressure30.33 inHg

Wind15.6 mph NW

Humidity30%

Visibility—

Dew point30°

Thu, 2258° / 48°

0.12

58 °

Union, Thursday, 22 October

Light rain. High 58°, low 48°.

Pressure30.12 inHg

Wind10.3 mph NW

Humidity60%

Visibility—

Dew point42°

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

Fri, 2365° / 49°

0.14

65 °

Union, Friday, 23 October

Climate normal for this date — 60-year average.

Average high65°

Average low49°

Average precipitation0.14 in

Chance of precipitation27%

Record high83° (1963)

Record low34° (1982)

Sat, 2464° / 49°

0.1

64 °

Union, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high64°

Average low49°

Average precipitation0.1 in

Chance of precipitation27%

Record high78° (2010)

Record low27° (1981)

Sun, 2563° / 48°

0.1

63 °

Union, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high63°

Average low48°

Average precipitation0.1 in

Chance of precipitation23%

Record high79° (1963)

Record low30° (2013)

Mon, 2663° / 47°

0.14

63 °

Union, Monday, 26 October

Climate normal for this date — 60-year average.

Average high63°

Average low47°

Average precipitation0.14 in

Chance of precipitation32%

Record high81° (1963)

Record low26° (1962)

Tue, 2762° / 46°

0.14

62 °

Union, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high62°

Average low46°

Average precipitation0.14 in

Chance of precipitation32%

Record high79° (2023)

Record low33° (1962)

Wed, 2861° / 45°

0.11

61 °

Union, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high61°

Average low45°

Average precipitation0.11 in

Chance of precipitation32%

Record high77° (1999)

Record low28° (1976)

Thu, 2961° / 46°

0.11

61 °

Union, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high61°

Average low46°

Average precipitation0.11 in

Chance of precipitation27%

Record high79° (2016)

Record low27° (1976)

Fri, 3063° / 47°

0.09

63 °

Union, Friday, 30 October

Climate normal for this date — 60-year average.

Average high63°

Average low47°

Average precipitation0.09 in

Chance of precipitation28%

Record high78° (1971)

Record low30° (1980)

Sat, 3163° / 48°

0.14

63 °

Union, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high63°

Average low48°

Average precipitation0.14 in

Chance of precipitation35%

Record high77° (1974)

Record low27° (2023)

Sun, 0162° / 47°

0.19

62 °

Union, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high62°

Average low47°

Average precipitation0.19 in

Chance of precipitation35%

Record high80° (2016)

Record low28° (1993)

Mon, 0260° / 45°

0.07

60 °

Union, Monday, 2 November

Climate normal for this date — 60-year average.

Average high60°

Average low45°

Average precipitation0.07 in

Chance of precipitation27%

Record high79° (1961)

Record low28° (2014)

Tue, 0359° / 44°

0.06

59 °

Union, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high59°

Average low44°

Average precipitation0.06 in

Chance of precipitation27%

Record high77° (2003)

Record low26° (1991)

Wed, 0459° / 45°

0.09

59 °

Union, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high59°

Average low45°

Average precipitation0.09 in

Chance of precipitation28%

Record high76° (2003)

Record low23° (1991)

Thu, 0558° / 44°

0.11

58 °

Union, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high58°

Average low44°

Average precipitation0.11 in

Chance of precipitation32%

Record high78° (2024)

Record low22° (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, IN 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, IN 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.