Outdoor conditions in

Decatur

Illinois
Now
  1. 70°Chance Rain Showers47% rain87% humidityGusts 15 mph
  2. 71°Showers And Thunderstorms Likely66% rain88% humidityGusts 15 mph
  3. 71°Showers And Thunderstorms81% rain93% humidityGusts 16 mph
  4. 73°Showers And Thunderstorms81% rain90% humidityGusts 15 mph
  5. 74°Showers And Thunderstorms76% rain87% humidityGusts 16 mph
  6. 76°Showers And Thunderstorms85% rain85% humidityGusts 18 mph
  7. 76°Showers And Thunderstorms78% rain85% humidityGusts 20 mph
  8. 76°Showers And Thunderstorms Likely71% rain85% humidityGusts 21 mph
  9. 75°Showers And Thunderstorms Likely64% rain84% humidityGusts 21 mph
  10. 72°Showers And Thunderstorms Likely57% rain93% humidityGusts 20 mph
  11. 69°Showers And Thunderstorms Likely60% rain100% humidityGusts 21 mph
  12. 67°Showers And Thunderstorms Likely63% rain100% humidityGusts 21 mph
  13. 66°Rain Showers Likely55% rain100% humidityGusts 21 mph
  14. 63°Chance Rain Showers47% rain100% humidityGusts 24 mph
  15. 59°Chance Rain Showers35% rain100% humidityGusts 24 mph
  16. 56°Slight Chance Rain Showers16% rain100% humidityGusts 24 mph
  17. 54°Cloudy13% rain100% humidityGusts 26 mph
  18. 51°Cloudy10% rain100% humidityGusts 28 mph
  19. 50°Cloudy6% rain100% humidityGusts 28 mph
  20. 48°Mostly Cloudy2% rain100% humidityGusts 29 mph
  21. 47°Mostly Cloudy2% rain100% humidityGusts 29 mph
  22. 46°Mostly Cloudy1% rain96% humidityGusts 30 mph
  23. 46°Partly Sunny0% rain96% humidityGusts 30 mph
  24. 48°Partly Sunny0% rain96% humidityGusts 31 mph
Extra care for

A little farther out

The next five days

Today

Today carries a thunderstorm chance.

Rain
85%
Humidity
84–100%
Wind
24 mph
Fri

Friday looks breezy.

Rain
38%
Humidity
71–100%
Wind
32 mph
Sat

Saturday looks fairly quiet.

Rain
3%
Humidity
42–93%
Wind
20 mph
Sun

Sunday looks fairly quiet.

Rain
0%
Humidity
31–89%
Wind
14 mph
Mon

Monday looks fairly quiet.

Rain
0%
Humidity
33–89%
Wind
8 mph
  1. 76° / 63°Today carries a thunderstorm chance.85% rain · Humidity 84–100% · Wind 24 mph
  2. 59° / 44°Friday looks breezy.38% rain · Humidity 71–100% · Wind 32 mph
  3. 58° / 37°Saturday looks fairly quiet.3% rain · Humidity 42–93% · Wind 20 mph
  4. 68° / 36°Sunday looks fairly quiet.0% rain · Humidity 31–89% · Wind 14 mph
  5. 73° / 40°Monday looks fairly quiet.0% rain · Humidity 33–89% · Wind 8 mph

Environmental watch

Air quality + smoke

Air quality

Decatur area · Updated Thu 10:25 AM
40GoodUS AQI

No fresh outlook yet.

Sky check

No plume detected overhead

Satellite view · Updated Thu 7:45 AM

Air near ground40 · Good US AQI

Rain, in motion · Past four hours

Decatur radar

Ready when you areSee what is moving toward Decatur.

Watch the last four hours of rain, then search any nearby trail, lake, or address.

View the official forecast ↗

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.
Selected timeNowUse caution

Sustained wind is 9 mph. Thunder is possible.

Humidity
87%
Wind
9 mph
Gusts
15 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 2 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 Decatur, 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.