What is today's weather forecast for Union Grove, IL?

Today's forecast for Union Grove shows a high of 35 degrees and a low of 25 degrees Fahrenheit. Mostly sunny, with a high near 35.

What is the 7-day weather forecast for Union Grove, IL?

The 7-day forecast for Union Grove shows highs from 29 to 41 degrees and lows from 7 to 32 degrees Fahrenheit. Expect precipitation on 2 days with chances of 20% or higher.

Will it rain in Union Grove, IL this week?

Yes, rain is possible in Union Grove this week. Precipitation chances: Wednesday (70% chance), Thursday (60% chance).

How accurate is the Union Grove weather forecast?

WeatherForYou provides highly accurate Union Grove forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Union Grove, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

16°F
Feels Like 16°F

Humidity 90% Dew Point 13°F Wind Calm Barometer 29.94 in.

Report from a personal weather station 3.8 mi. ESE of central Union Grove
at 5:06 AM Tue, Dec 16, 2025

Point Forecast at a Glance

TueDec 16

WedDec 17

ThuDec 18

60%

FriDec 19

SatDec 20

SunDec 21

MonDec 22

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 29°F to 41°F. Some rain possible with at least 2 days showing precipitation chances of 20% or higher.

Climate Context

Temperatures are expected to be near normal for this time of year, with highs around 35°F and lows around 19°F.

This Date in Weather History

1917 - An ice jam closed the Ohio River between Warsaw, KY, and Rising Sun, IN. The thirty foot high ice jam held for 58 days, and backed up the river a distance of 100 miles.

Union Grove, IL 7 Day Weather Forecast Details

Tuesday Dec 16

Day: Mostly sunny, with a high near 35. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

Night: Mostly cloudy, with a low around 25. Southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

Wednesday Dec 17

Day: Mostly sunny, with a high near 38. Northwest wind 5 to 10 mph becoming southeast in the afternoon.

Night: Rain likely after midnight. Mostly cloudy, with a low around 32. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

Thursday Dec 18

Day: Rain likely before noon. Mostly cloudy, with a high near 41. Breezy. Chance of precipitation is 60%.

Night: Mostly cloudy, with a low around 7. Breezy.

Friday Dec 19

Day: Mostly sunny, with a high near 29.

Night: Mostly cloudy, with a low around 20.

Saturday Dec 20

Day: Partly sunny, with a high near 41.

Night: Partly cloudy, with a low around 18.

Sunday Dec 21

Day: Mostly sunny, with a high near 31.

Night: Mostly cloudy, with a low around 20.

Monday Dec 22

Day: Mostly cloudy, with a high near 35.

About Union Grove, IL

Union Grove is an unincorporated community in Whiteside County, in the U.S. state of Illinois.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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