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Current Weather in Oak Run, IL

Updated: Thu Sep 17th 2026 11:00 AM CDT

Light Rain Shower

78^°F 25^°C

Feels Like 82^°F / 28^°C

Oak Run, IL weather condition is Light Rain Shower and 78°F.

Today's Weather in Oak Run,IL

The current weather in Oak Run IL as of 11:00 AM CDT on Thu Sep 17th 2026, has a sky condition of Light Rain Shower with the visibility of 6 mile(s) and the UV index at 1.5. It is 78 degrees fahrenheit but feels like 82 degrees with a forecasted high of 84 and low of 66. The barometric pressure is 30.19 - measured by inches of mercury - and is steady since its last observation. The humidity is 78 percent that's falling since the last report, with a dew point of 70 degrees fahrenheit which is rising. Wind direction is from the West-Southwest at 4.9 miles per hour, gusting at 7.9 miles per hour. Sunrise was at 6:43 AM and Sunset is at 7:06 PM. The moon phase is a First Quarter moon rising at 2:06 PM with 42% illumination. Thank you for listening to the weather report from LocalConditions.com!

Listen to this weather report - press Read

Barometer 30.19 inHg. steady
Humidity 78% falling
Heat Index 81°F
Wind from WSW. 4.9 mph
Wind Gust 7.9 miles per hour
Wind Chill 78°F
UV Index 1.5

Dew Point 70°F rising
Visibility 6 mi.
Sunrise 6:43 AM
Sunset 7:06 PM
Moonrise 2:06 PM
Moonset 10:44 PM
Moon Phase First Quarter Moon 42%

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Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

5 Day Forecast

Light Rain Shower

Light Rain Shower with a high of 84°F and a low of 66°F. Probable rainfall forecasted, having an 87% chance with an estimated 0.65in. Winds will be moderate, blowing around 11mph. Expect high humidity with levels above 80% to 88%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 84° \| Lo 66°	88%	87% \| est. 0.65in	0%	11 mph

Sunny

Sunny with a high of 78°F and a low of 61°F. Probable rainfall forecasted, having a 70% chance with an estimated 0.1in. Winds will be moderate, blowing around 14mph. Expect high humidity with levels above 80% to 89%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 78° \| Lo 61°	89%	70% \| est. 0.1in	0%	13.2 mph

Overcast

Overcast with a high of 80°F and a low of 72°F. Probable rainfall forecasted, having a 68% chance with an estimated 0.07in. Winds will be moderate, blowing around 13mph. Expect high humidity with levels above 80% to 86%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 80° \| Lo 72°	86%	68% \| est. 0.07in	0%	12.8 mph

Light Rain Shower

Light Rain Shower with a high of 74°F and a low of 60°F. Rainfall is expected, having a 92% chance with 0.63in estimated precipitation. Winds will be moderate, blowing around 15mph. Expect high humidity with levels above 80% to 93%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 74° \| Lo 60°	93%	92% \| est. 0.63in	0%	14.1 mph

Scattered Showers

Scattered Showers with a high of 66°F and a low of 55°F. Probable rainfall forecasted, having a 90% chance with an estimated 0.34in. Winds will be moderate, blowing around 14mph. Expect high humidity with levels above 80% to 90%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 66° \| Lo 55°	90%	90% \| est. 0.34in	0%	13.2 mph

Yesterday 5-Day 10-Day

Weather Radar Map

Live Oak Run, IL weather with granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Monday, 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 78^°F. The morning temperature of 69°^F is lowest at 12am with the daytime high of 84°^F at 2pm and a low around 66°^F at 11pm is expected.

Hourly Barometric Pressure

The highest pressure today is 30.21^inHg at 12am and lowest being 30.12^inHg at 4pm.

Hourly Wind Speeds

The fastest wind is reported to be 11^mph at 8pm, while the slowest is 1.6^mph around 6am; expect wind gusts peaking 20.6^mph at 9pm.

More Weather Charts

Current National Weather

More Flash Flooding Expected in the Southwest and Plains: 09-17 to 09-19

Updated Thu Sep 17th 2026, 5:06am PDT

This week, we're looking at more flash flooding risks in parts of the Southwest, Northern Plains, and Upper Midwest. High temperatures will persist across the South-Central U.S. with possible record highs. Watch out for scattered thunderstorms in Florida, though they won't bring excessive rain. Stay safe and keep updated!

Southwest and Rockies

On Thursday, the focus for heavy rain shifts from the Great Basin to the Southern Rockies. A moisture-rich system will enhance showers and isolated thunderstorms, leading to potential flash flooding. Although fewer storms than yesterday, high rainfall rates make flash floods still a concern.

Northern Plains to Upper Midwest

Expect heavy rain from Friday into Saturday as a new low-pressure system forms over the Central High Plains. This system will bring more flash flooding risks from the Northern Plains to the Upper Midwest. The cold air from Canada will bring cooler temperatures, leading to highs in the 60s and 70s north of the front.

South-Central U.S.

The South-Central U.S. will continue to experience hot temperatures due to a strong upper-level high pressure—a heat dome—causing highs in the 90s and 100s. Heat advisories are in place, and daily record highs might be challenged.

Florida

Expect scattered thunderstorms in Florida due to a stationary front near the heat dome. Heavy downpours are possible, but they won't likely lead to excessive rainfall.