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Union County, IL Weather Conditions

Updated: Fri Mar 13th 2026 8:15 AM CDT

Partly Cloudy

47^°F 8^°C

Feels Like 40^°F / 4^°C

Union County, IL weather condition is Partly Cloudy and 47°F.

Today's Weather in Union County,IL

The current weather in Union County IL as of 8:15 AM CDT on Fri Mar 13th 2026, has a sky condition of Partly Cloudy with the visibility of 9 mile(s) and the UV index at 0.2. It is 47 degrees fahrenheit but feels like 40 degrees. The barometric pressure is 29.91 - measured by inches of mercury - and is falling since its last observation. The humidity is 53 percent that's falling since the last report, with a dew point of 31 degrees fahrenheit which is rising. Wind direction is from the Southwest at 17.9 miles per hour, gusting at 28.9 miles per hour. Sunrise was at 7:11 AM and Sunset is at 7:03 PM. The moon phase is a Waning Crescent moon rising at 4:11 AM. Thank you for listening to the weather report from LocalConditions.com!

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Sun & Moon

Sun

Sunrise: 7:11 AM

Sunset: 7:03 PM

As of:

Moon

Moonrise: 4:11 AM

Moonset: 1:29 PM

Phase: Waning Crescent Moon

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Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

Next 5 Days...

Sunny

Sunny with a high of 63°F and a low of 38°F. Winds will be moderate, blowing around 13mph. The humidity will be on the higher side, reaching around 63%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 63° \| Lo 38°	63%	0%	0%	12.1 mph

Scattered Rain

Scattered Rain with a high of 68°F and a low of 50°F. Probable rainfall forecasted, having a 75% chance with an estimated 0.16in. Winds will be strong at speeds peaking at 26mph. Expect high humidity with levels above 80% to 83%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 68° \| Lo 50°	83%	75% \| est. 0.16in	0%	25.9 mph

Blowing Snow

Blowing Snow with a high of 33°F and a low of 21°F. Probable rainfall forecasted, having a 78% chance with an estimated 0.01in. Snow is likely with a 31% chance having an estimated 0in. Winds will be strong at speeds peaking at 24mph. Humidity levels are comfortable, sitting around 57%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 33° \| Lo 21°	57%	78% \| est. 0.01in	31% \| est. 0in	23.3 mph

Sunny

Sunny with a high of 36°F and a low of 17°F. Winds will be moderate, blowing around 13mph. Humidity levels are comfortable, sitting around 49%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 36° \| Lo 17°	49%	0%	0%	12.3 mph

Scattered Rain

Scattered Rain with a high of 50°F and a low of 31°F. Probable rainfall forecasted, having a 63% chance with an estimated 0.01in. Possible light Snowfall with a 7% chance estimated at 0.1in accumulation. Winds will be moderate, blowing around 15mph. The humidity will be on the higher side, reaching around 72%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 50° \| Lo 31°	72%	63% \| est. 0.01in	7% \| est. 0.1in	14.3 mph

Yesterday 5-Day Wind

Weather Radar Map

Live Union County, IL weather with minute-by-minute precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Tuesday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.

Hourly Temperature

The current temperature today is 47^°F. The morning temperature of 40°^F is lowest at 5am with the daytime high of 65°^F at 3pm and a low around 50°^F at 11pm is expected.

Hourly Barometric Pressure

The highest pressure today is 30.12^inHg at 12am and lowest being 29.91^inHg at 8am.

Hourly Wind Speeds

The fastest wind is reported to be 22.8^mph at 5am, while the slowest is 4.7^mph around 6pm; expect wind gusts peaking 38.2^mph at 4am. View live wind conditions in Union County

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