Outdoor conditions in

St. Charles

Illinois
Now
  1. 61°Rain Showers80% rain90% humidityGusts 13 mph
  2. 61°Showers And Thunderstorms88% rain93% humidityGusts 9 mph
  3. 61°Showers And Thunderstorms82% rain97% humidityGusts 9 mph
  4. 61°Showers And Thunderstorms75% rain99% humidityGusts 9 mph
  5. 61°Rain Showers Likely62% rain99% humidityGusts 9 mph
  6. 61°Chance Rain Showers49% rain99% humidityGusts 9 mph
  7. 62°Chance Rain Showers36% rain95% humidityGusts 18 mph
  8. 61°Slight Chance Rain Showers23% rain94% humidityGusts 23 mph
  9. 60°Cloudy14% rain95% humidityGusts 26 mph
  10. 57°Cloudy10% rain98% humidityGusts 30 mph
  11. 55°Cloudy5% rain97% humidityGusts 30 mph
  12. 53°Cloudy4% rain99% humidityGusts 31 mph
  13. 52°Mostly Cloudy4% rain95% humidityGusts 31 mph
  14. 50°Mostly Cloudy3% rain93% humidityGusts 30 mph
  15. 49°Mostly Cloudy1% rain93% humidityGusts 29 mph
  16. 48°Partly Sunny0% rain93% humidityGusts 29 mph
  17. 47°Partly Sunny0% rain93% humidityGusts 29 mph
  18. 47°Partly Sunny0% rain96% humidityGusts 29 mph
  19. 47°Partly Sunny1% rain100% humidityGusts 29 mph
  20. 48°Cloudy7% rain99% humidityGusts 28 mph
  21. 50°Slight Chance Rain Showers16% rain93% humidityGusts 28 mph
  22. 51°Chance Rain Showers25% rain89% humidityGusts 29 mph
  23. 53°Chance Rain Showers51% rain82% humidityGusts 30 mph
  24. 53°Chance Rain Showers51% rain78% humidityGusts 32 mph
Extra care for

A little farther out

The next five days

Today

Today looks wet for a meaningful stretch.

Rain
88%
Humidity
88–99%
Wind
26 mph
Fri

Friday has a real shower chance.

Rain
51%
Humidity
76–100%
Wind
35 mph
Sat

Saturday looks fairly quiet.

Rain
0%
Humidity
47–88%
Wind
22 mph
Sun

Sunday looks fairly quiet.

Rain
0%
Humidity
42–82%
Wind
24 mph
Mon

Monday looks fairly quiet.

Rain
0%
Humidity
46–87%
Wind
10 mph
  1. 62° / 60°Today looks wet for a meaningful stretch.88% rain · Humidity 88–99% · Wind 26 mph
  2. 57° / 41°Friday has a real shower chance.51% rain · Humidity 76–100% · Wind 35 mph
  3. 57° / 34°Saturday looks fairly quiet.0% rain · Humidity 47–88% · Wind 22 mph
  4. 64° / 38°Sunday looks fairly quiet.0% rain · Humidity 42–82% · Wind 24 mph
  5. 68° / 40°Monday looks fairly quiet.0% rain · Humidity 46–87% · Wind 10 mph

Environmental watch

Air quality + smoke

Air quality

Aurora and Elgin area · Updated Thu 3:26 PM
38GoodUS AQI

No fresh outlook yet.

Sky check

No plume detected overhead

Satellite view · Updated Thu 1:45 PM

Air near ground38 · Good US AQI

Rain, in motion · Past four hours

St. Charles radar

Ready when you areSee what is moving toward St. Charles.

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?

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 10 mph. Thunder is possible.

Humidity
90%
Wind
10 mph
Gusts
13 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 Aurora and Elgin area, about 9 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 St. Charles, 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.