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Current Weather in Saint Elmo, IL

Updated: Tue Sep 15th 2026 7:15 AM CDT

Sunny

69^°F 21^°C

Feels Like 68^°F / 20^°C

Saint Elmo, IL weather condition is Sunny and 69°F.

Today's Weather in Saint Elmo,IL

The current weather in Saint Elmo IL as of 7:15 AM CDT on Tue Sep 15th 2026, has a sky condition of Sunny with the visibility of 6 mile(s). It is 69 degrees fahrenheit but feels like 68 degrees with a forecasted high of 99 and low of 68. The barometric pressure is 30.06 - measured by inches of mercury - and is rising since its last observation. The humidity is 75 percent that's rising since the last report, with a dew point of 61 degrees fahrenheit which is rising. Wind direction is from the South-Southeast at 9.2 miles per hour, gusting at 27.3 miles per hour. Sunrise was at 6:36 AM and Sunset is at 7:04 PM. The moon phase is a Waxing Crescent moon rising at 11:44 AM with 23% illumination. Thank you for listening to the weather report from LocalConditions.com!

Listen to this weather report - press Read

Barometer 30.06 inHg. rising
Humidity 75% rising
Heat Index 69°F
Wind from SSE. 9.2 mph
Wind Gust 27.3 miles per hour
Wind Chill 69°F
UV Index 0

Dew Point 61°F rising
Visibility 6 mi.
Sunrise 6:36 AM
Sunset 7:04 PM
Moonrise 11:44 AM
Moonset 9:17 PM
Moon Phase Waxing Crescent Moon 23%

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Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

5 Day Forecast

Sunny

Sunny with a high of 99°F and a low of 68°F. Probable rainfall forecasted, having a 68% chance with an estimated 0.64in. Winds will be moderate, blowing around 15mph. The humidity will be on the higher side, reaching around 64%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 99° \| Lo 68°	64%	68% \| est. 0.64in	0%	15 mph

Light Rain Shower

Light Rain Shower with a high of 90°F and a low of 72°F. Probable rainfall forecasted, having a 78% chance with an estimated 0.37in. Winds will be moderate, blowing around 11mph. The humidity will be on the higher side, reaching around 77%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 90° \| Lo 72°	77%	78% \| est. 0.37in	0%	10.5 mph

Overcast

Overcast with a high of 91°F and a low of 76°F. 13% possible chance of rain predicted with an estimated 0in. Winds will be light at 10mph at times. The humidity will be on the higher side, reaching around 67%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 91° \| Lo 76°	67%	13% \| est. 0in	0%	9.6 mph

Sunny

Sunny with a high of 91°F and a low of 72°F. Probable rainfall forecasted, having a 68% chance with an estimated 0.17in. Winds will be moderate, blowing around 13mph. The humidity will be on the higher side, reaching around 75%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 91° \| Lo 72°	75%	68% \| est. 0.17in	0%	12.1 mph

Sunny

Sunny with a high of 96°F and a low of 75°F. Probable rainfall forecasted, having a 57% chance with an estimated 0.07in. Winds will be moderate, blowing around 14mph. Humidity levels are comfortable, sitting around 60%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 96° \| Lo 75°	60%	57% \| est. 0.07in	0%	13.2 mph

Yesterday 5-Day 10-Day

Weather Radar Map

Live Saint Elmo, IL weather with granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Saturday, 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 69^°F. The morning temperature of 68°^F is lowest at 3am with the daytime high of 99°^F at 2pm and a low around 72°^F at 9pm is expected.

Hourly Barometric Pressure

The highest pressure today is 30.19^inHg at 9pm and lowest being 29.99^inHg at 4pm.

Hourly Wind Speeds

The fastest wind is reported to be 15^mph at 7pm, while the slowest is 5.8^mph around 9pm; expect wind gusts peaking 27.8^mph at 8am.

More Weather Charts

Current National Weather

Rain and Storms in the West, Heat Persists in the South - 09-14 to 09-16

Updated Mon Sep 14th 2026, 5:26am PDT

This week, Western and Central U.S. will see an active weather pattern with showers and thunderstorms due to a strong weather front moving from the Rockies to the Plains. The South-Central U.S. will continue experiencing dangerous heat into midweek. Be prepared for flash floods in the Central Plains and record-breaking heat in the South!

Western U.S. and Plains

Monday starts with a moist air mass moving north, causing showers and thunderstorms from the Intermountain West to the Central Plains. This creates risks of flash flooding and severe weather. The thunderstorms will persist into Wednesday as the cold front slowly moves south, keeping the Plains wet and stormy.

The Southern Rockies will also see daily thunderstorms. The combination of a cold front and warm moist air will lead to rain instead of snow.

South-Central U.S.

For the Mid/Lower Mississippi Valley, an upper ridge will push temperatures into the 90s and low 100s from Monday through Wednesday. This extreme heat could break records and poses health risks, especially with warm nights offering little relief.

This weather report is valid for ZIP code 62458, accurately covering the area of Saint Elmo, IL.