Today carries a thunderstorm chance.
- Rain
- 75%
- Humidity
- 76–97%
- Wind
- 22 mph
Current concerns
Outdoor planning
Now
- 75°Showers And Thunderstorms75% rain82% humidityGusts 14 mph
- 77°Showers And Thunderstorms Likely67% rain79% humidityGusts 15 mph
- 78°Showers And Thunderstorms75% rain76% humidityGusts 17 mph
- 78°Showers And Thunderstorms Likely73% rain76% humidityGusts 18 mph
- 77°Showers And Thunderstorms Likely71% rain79% humidityGusts 20 mph
- 76°Showers And Thunderstorms Likely64% rain82% humidityGusts 21 mph
- 72°Showers And Thunderstorms Likely56% rain93% humidityGusts 21 mph
- 69°Showers And Thunderstorms Likely63% rain97% humidityGusts 21 mph
- 68°Showers And Thunderstorms Likely71% rain97% humidityGusts 21 mph
- 67°Rain Showers Likely66% rain97% humidityGusts 21 mph
- 66°Rain Showers Likely61% rain97% humidityGusts 22 mph
- 63°Chance Rain Showers48% rain100% humidityGusts 23 mph
- 61°Chance Rain Showers27% rain100% humidityGusts 23 mph
- 58°Chance Rain Showers32% rain100% humidityGusts 24 mph
- 55°Chance Rain Showers37% rain100% humidityGusts 26 mph
- 53°Chance Rain Showers26% rain96% humidityGusts 28 mph
- 51°Slight Chance Rain Showers16% rain93% humidityGusts 28 mph
- 50°Cloudy11% rain93% humidityGusts 29 mph
- 49°Cloudy6% rain89% humidityGusts 29 mph
- 48°Mostly Cloudy3% rain93% humidityGusts 29 mph
- 51°Mostly Cloudy0% rain83% humidityGusts 30 mph
- 52°Partly Sunny0% rain74% humidityGusts 30 mph
- 54°Mostly Sunny0% rain66% humidityGusts 30 mph
- 55°Partly Sunny3% rain64% humidityGusts 30 mph
A little farther out
The next five days
Friday has a real shower chance.
- Rain
- 48%
- Humidity
- 57–100%
- Wind
- 31 mph
Saturday looks fairly quiet.
- Rain
- 5%
- Humidity
- 36–86%
- Wind
- 21 mph
Sunday looks fairly quiet.
- Rain
- 1%
- Humidity
- 27–85%
- Wind
- 12 mph
Monday looks fairly quiet.
- Rain
- 1%
- Humidity
- 30–92%
- Wind
- 8 mph
- 78° / 65°Today carries a thunderstorm chance.75% rain · Humidity 76–97% · Wind 22 mph
- 63° / 45°Friday has a real shower chance.48% rain · Humidity 57–100% · Wind 31 mph
- 59° / 38°Saturday looks fairly quiet.5% rain · Humidity 36–86% · Wind 21 mph
- 67° / 35°Sunday looks fairly quiet.1% rain · Humidity 27–85% · Wind 12 mph
- 72° / 38°Monday looks fairly quiet.1% rain · Humidity 30–92% · Wind 8 mph
Environmental watch
Air quality + smoke
Air quality
Decatur area · Updated Thu 1:25 PMNo fresh outlook yet.
55 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 7:45 AMAir near ground55 · Moderate US AQI
Rain, in motion · Past four hours
Mattoon radar
Radar animation for Mattoon, 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 41 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 Mattoon, 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.