Today carries a thunderstorm chance.
- Rain
- 91%
- Humidity
- 82–100%
- Wind
- 24 mph
Current concerns
Outdoor planning
Now
- 73°Showers And Thunderstorms80% rain84% humidityGusts 18 mph
- 74°Chance Showers And Thunderstorms48% rain84% humidityGusts 18 mph
- 76°Chance Showers And Thunderstorms39% rain82% humidityGusts 18 mph
- 74°Chance Showers And Thunderstorms46% rain84% humidityGusts 17 mph
- 71°Chance Showers And Thunderstorms48% rain100% humidityGusts 17 mph
- 69°Showers And Thunderstorms Likely56% rain100% humidityGusts 20 mph
- 66°Showers And Thunderstorms Likely64% rain100% humidityGusts 21 mph
- 67°Chance Showers And Thunderstorms52% rain97% humidityGusts 23 mph
- 65°Showers And Thunderstorms Likely62% rain97% humidityGusts 24 mph
- 61°Chance Showers And Thunderstorms44% rain97% humidityGusts 25 mph
- 58°Slight Chance Rain Showers17% rain96% humidityGusts 26 mph
- 54°Slight Chance Rain Showers18% rain96% humidityGusts 29 mph
- 52°Slight Chance Rain Showers17% rain96% humidityGusts 30 mph
- 51°Mostly Cloudy8% rain89% humidityGusts 32 mph
- 49°Mostly Cloudy6% rain89% humidityGusts 32 mph
- 48°Mostly Cloudy3% rain89% humidityGusts 32 mph
- 48°Mostly Cloudy3% rain83% humidityGusts 32 mph
- 47°Mostly Cloudy0% rain89% humidityGusts 31 mph
- 50°Partly Sunny0% rain83% humidityGusts 31 mph
- 53°Partly Sunny0% rain71% humidityGusts 31 mph
- 54°Partly Sunny0% rain69% humidityGusts 30 mph
- 55°Partly Sunny2% rain64% humidityGusts 30 mph
- 55°Partly Sunny4% rain64% humidityGusts 30 mph
- 55°Slight Chance Rain Showers17% rain61% humidityGusts 30 mph
A little farther out
The next five days
Friday has a real shower chance.
- Rain
- 44%
- Humidity
- 61–97%
- Wind
- 32 mph
Saturday looks fairly quiet.
- Rain
- 0%
- Humidity
- 40–89%
- Wind
- 22 mph
Sunday looks fairly quiet.
- Rain
- 0%
- Humidity
- 26–89%
- Wind
- 13 mph
Monday looks fairly quiet.
- Rain
- 0%
- Humidity
- 30–96%
- Wind
- 9 mph
- 76° / 65°Today carries a thunderstorm chance.91% rain · Humidity 82–100% · Wind 24 mph
- 61° / 44°Friday has a real shower chance.44% rain · Humidity 61–97% · Wind 32 mph
- 58° / 36°Saturday looks fairly quiet.0% rain · Humidity 40–89% · Wind 22 mph
- 68° / 34°Sunday looks fairly quiet.0% rain · Humidity 26–89% · Wind 13 mph
- 71° / 37°Monday looks fairly quiet.0% rain · Humidity 30–96% · Wind 9 mph
Environmental watch
Air quality + smoke
Air quality
Decatur area · Updated Thu 3:26 PMNo fresh outlook yet.
51 is in the Moderate range (51–100). Most people can be active outside; if you’re unusually sensitive to fine particles, consider a shorter or easier outing.
Sky check
No plume detected overhead
Satellite view · Updated Thu 1:45 PMAir near ground51 · Moderate US AQI
Rain, in motion · Past four hours
Sullivan radar
Radar animation for Sullivan, 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?
Use extra caution.
There is no lower-concern three-hour stretch in the next 12 hours.
Next 12 hoursChoose a time to see what is driving the concern.
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 26 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 Sullivan, 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.