Outdoor conditions in

Illiopolis

Illinois

Outdoor planning

Now
  1. 71°Showers And Thunderstorms87% rain97% humidityGusts 16 mph
  2. 72°Showers And Thunderstorms79% rain97% humidityGusts 15 mph
  3. 74°Showers And Thunderstorms Likely74% rain93% humidityGusts 16 mph
  4. 75°Showers And Thunderstorms78% rain90% humidityGusts 18 mph
  5. 76°Showers And Thunderstorms Likely73% rain90% humidityGusts 20 mph
  6. 76°Showers And Thunderstorms Likely68% rain87% humidityGusts 21 mph
  7. 75°Showers And Thunderstorms Likely62% rain90% humidityGusts 21 mph
  8. 71°Showers And Thunderstorms Likely56% rain100% humidityGusts 20 mph
  9. 68°Showers And Thunderstorms Likely58% rain100% humidityGusts 21 mph
  10. 67°Showers And Thunderstorms Likely61% rain100% humidityGusts 22 mph
  11. 65°Chance Rain Showers50% rain100% humidityGusts 23 mph
  12. 62°Chance Rain Showers39% rain100% humidityGusts 26 mph
  13. 59°Chance Rain Showers30% rain100% humidityGusts 26 mph
  14. 57°Cloudy13% rain96% humidityGusts 26 mph
  15. 54°Cloudy8% rain100% humidityGusts 28 mph
  16. 53°Cloudy4% rain96% humidityGusts 29 mph
  17. 51°Mostly Cloudy3% rain96% humidityGusts 28 mph
  18. 50°Mostly Cloudy1% rain93% humidityGusts 29 mph
  19. 48°Mostly Cloudy1% rain93% humidityGusts 29 mph
  20. 47°Mostly Sunny0% rain89% humidityGusts 30 mph
  21. 46°Partly Sunny0% rain93% humidityGusts 31 mph
  22. 49°Mostly Sunny0% rain89% humidityGusts 31 mph
  23. 51°Partly Sunny0% rain83% humidityGusts 32 mph
  24. 53°Partly Sunny0% rain77% humidityGusts 32 mph
Extra care for

A little farther out

The next five days

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
  1. 76° / 62°Today carries a thunderstorm chance.87% rain · Humidity 87–100% · Wind 26 mph
  2. 59° / 44°Friday looks breezy.37% rain · Humidity 72–100% · Wind 32 mph
  3. 59° / 36°Saturday looks fairly quiet.3% rain · Humidity 40–96% · Wind 20 mph
  4. 68° / 35°Sunday looks fairly quiet.0% rain · Humidity 31–89% · Wind 14 mph
  5. 73° / 38°Monday looks fairly quiet.0% rain · Humidity 33–96% · Wind 7 mph

Environmental watch

Air quality + smoke

Air quality

Decatur area · Updated Thu 11:26 AM
47GoodUS AQI

No fresh outlook yet.

Sky check

No plume detected overhead

Satellite view · Updated Thu 7:45 AM

Air near ground47 · Good US AQI

Rain, in motion · Past four hours

Illiopolis radar

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 hoursChoose a time to see what is driving the concern.
Selected timeNowUse 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 readingsSources 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.

This page represents Illiopolis, IL, so conditions can vary from street to street. Environmental data: AirNow · participating air agencies · preliminary real-time US AQI · NOAA Hazard Mapping System · satellite-observed smoke.