Plan! needs attention 5 days Air + smoke Radar! needs attention Outdoor planning 1
Now
Temperature Rain Humidity Gusts 71° 12 PM 75° 3 PM 71° 7 PM 68° 8 PM 65° 10 PM 57° 1 AM 53° 3 AM 51° 4 AM 46° 8 AM 53° 11 AM
97% 90% 100% 100% 100% 96% 96% 96% 93% 77%
16 mph 15 mph 16 mph 18 mph 20 mph 21 mph 21 mph 20 mph 21 mph 22 mph 23 mph 26 mph 26 mph 26 mph 28 mph 29 mph 28 mph 29 mph 29 mph 30 mph 31 mph 31 mph 32 mph 32 mph
Thu 12:00 PM 71° Showers And Thunderstorms 87% rain 97% humidity Gusts 16 mph Thu 1:00 PM 72° Showers And Thunderstorms 79% rain 97% humidity Gusts 15 mph Thu 2:00 PM 74° Showers And Thunderstorms Likely 74% rain 93% humidity Gusts 16 mph Thu 3:00 PM 75° Showers And Thunderstorms 78% rain 90% humidity Gusts 18 mph Thu 4:00 PM 76° Showers And Thunderstorms Likely 73% rain 90% humidity Gusts 20 mph Thu 5:00 PM 76° Showers And Thunderstorms Likely 68% rain 87% humidity Gusts 21 mph Thu 6:00 PM 75° Showers And Thunderstorms Likely 62% rain 90% humidity Gusts 21 mph Thu 7:00 PM 71° Showers And Thunderstorms Likely 56% rain 100% humidity Gusts 20 mph Thu 8:00 PM 68° Showers And Thunderstorms Likely 58% rain 100% humidity Gusts 21 mph Thu 9:00 PM 67° Showers And Thunderstorms Likely 61% rain 100% humidity Gusts 22 mph Thu 10:00 PM 65° Chance Rain Showers 50% rain 100% humidity Gusts 23 mph Thu 11:00 PM 62° Chance Rain Showers 39% rain 100% humidity Gusts 26 mph Fri 12:00 AM 59° Chance Rain Showers 30% rain 100% humidity Gusts 26 mph Fri 1:00 AM 57° Cloudy 13% rain 96% humidity Gusts 26 mph Fri 2:00 AM 54° Cloudy 8% rain 100% humidity Gusts 28 mph Fri 3:00 AM 53° Cloudy 4% rain 96% humidity Gusts 29 mph Fri 4:00 AM 51° Mostly Cloudy 3% rain 96% humidity Gusts 28 mph Fri 5:00 AM 50° Mostly Cloudy 1% rain 93% humidity Gusts 29 mph Fri 6:00 AM 48° Mostly Cloudy 1% rain 93% humidity Gusts 29 mph Fri 7:00 AM 47° Mostly Sunny 0% rain 89% humidity Gusts 30 mph Fri 8:00 AM 46° Partly Sunny 0% rain 93% humidity Gusts 31 mph Fri 9:00 AM 49° Mostly Sunny 0% rain 89% humidity Gusts 31 mph Fri 10:00 AM 51° Partly Sunny 0% rain 83% humidity Gusts 32 mph Fri 11:00 AM 53° Partly Sunny 0% rain 77% humidity Gusts 32 mph 1 Next best time outsideFri 6:00 AM–12:15 PM 2 hours outside within this window Temperatures outside your comfort range, some wind, rain unlikely. Watch for: thunder and lightning, limited daylight. Not checked: air quality and UV.
A little farther out
The next five days
Today 76° 62°
Fri 59° 44°
Sat 59° 36°
Sun 68° 35°
Mon 73° 38°
Today Today carries a thunderstorm chance.
Rain 87%
Humidity 87–100%
Wind 26 mph Fri Friday looks breezy.
Rain 37%
Humidity 72–100%
Wind 32 mph Sat Saturday looks fairly quiet.
Rain 3%
Humidity 40–96%
Wind 20 mph Sun Sunday looks fairly quiet.
Rain 0%
Humidity 31–89%
Wind 14 mph Mon Monday looks fairly quiet.
Rain 0%
Humidity 33–96%
Wind 7 mph Today 76° / 62° Today carries a thunderstorm chance. 87% rain · Humidity 87–100% · Wind 26 mph Fri 59° / 44° Friday looks breezy. 37% rain · Humidity 72–100% · Wind 32 mph Sat 59° / 36° Saturday looks fairly quiet. 3% rain · Humidity 40–96% · Wind 20 mph Sun 68° / 35° Sunday looks fairly quiet. 0% rain · Humidity 31–89% · Wind 14 mph Mon 73° / 38° Monday looks fairly quiet. 0% rain · Humidity 33–96% · Wind 7 mph Environmental watch
Air quality + smoke 47 Good US AQI No fresh outlook yet.
Sky check
No plume detected overhead Satellite view · Updated Thu 7:45 AM Air near ground 47 · Good US AQI
Rain, in motion · Past four hours
Illiopolis radar
Ready when you are See what is moving toward Illiopolis. Watch the last four hours of rain, then search any nearby trail, lake, or address.
Radar animation for Illiopolis, covering the past four hours. A marked spot changes the map view, not the forecast on this page.
Outdoor fire check
Thinking about a backyard fire? Conditions could spread a fire quickly. Wind, gusts, or the combination of dry air and wind raises the concern.
Next 12 hours Choose a time to see what is driving the concern.
Now Use caution 1 PM Use caution 2 PM Use caution 3 PM Use caution 4 PM Use caution 5 PM Use caution 6 PM Use caution 7 PM Use caution 8 PM Use caution 9 PM Use caution 10 PM Use caution 11 PM High concern Selected time Now Use caution Sustained wind is 9 mph. Gusts may reach 16 mph. Thunder is possible.
Humidity 97%
Wind 9 mph
Gusts 16 mph Check local rules. Weather is only part of the decision. Check city, county, and land-manager fire restrictions before lighting any outdoor fire.
About these readings Sources and local limits Weather Forecasts, alerts, and radar come from NOAA and the National Weather Service.
Air quality This reading describes Decatur area, about 15 miles away. Conditions can differ at this exact spot.
Smoke Satellite imagery shows smoke overhead. It cannot tell us how much smoke has reached breathing level.