Outdoor conditions in

Mount Vernon

Illinois
Now
  1. 83°Chance Showers And Thunderstorms50% rain72% humidityGusts 15 mph
  2. 84°Chance Showers And Thunderstorms44% rain70% humidityGusts 17 mph
  3. 84°Chance Showers And Thunderstorms53% rain70% humidityGusts 18 mph
  4. 85°Showers And Thunderstorms Likely62% rain65% humidityGusts 20 mph
  5. 84°Showers And Thunderstorms Likely55% rain67% humidityGusts 18 mph
  6. 82°Chance Showers And Thunderstorms52% rain67% humidityGusts 18 mph
  7. 79°Showers And Thunderstorms Likely60% rain74% humidityGusts 17 mph
  8. 73°Chance Showers And Thunderstorms46% rain87% humidityGusts 17 mph
  9. 72°Chance Showers And Thunderstorms41% rain90% humidityGusts 17 mph
  10. 71°Chance Rain Showers46% rain90% humidityGusts 16 mph
  11. 69°Chance Rain Showers49% rain93% humidityGusts 17 mph
  12. 68°Chance Rain Showers52% rain93% humidityGusts 20 mph
  13. 65°Chance Showers And Thunderstorms36% rain100% humidityGusts 23 mph
  14. 62°Showers And Thunderstorms Likely57% rain100% humidityGusts 25 mph
  15. 59°Showers And Thunderstorms Likely67% rain96% humidityGusts 28 mph
  16. 56°Chance Rain Showers52% rain96% humidityGusts 28 mph
  17. 53°Chance Rain Showers36% rain96% humidityGusts 29 mph
  18. 52°Slight Chance Rain Showers24% rain93% humidityGusts 28 mph
  19. 52°Mostly Cloudy6% rain86% humidityGusts 26 mph
  20. 50°Mostly Cloudy0% rain93% humidityGusts 28 mph
  21. 52°Mostly Cloudy0% rain80% humidityGusts 29 mph
  22. 54°Mostly Sunny0% rain69% humidityGusts 28 mph
  23. 56°Mostly Sunny0% rain59% humidityGusts 28 mph
  24. 57°Partly Sunny0% rain55% humidityGusts 26 mph
Extra care for

A little farther out

The next five days

Today

Today carries a thunderstorm chance.

Rain
62%
Humidity
65–100%
Wind
20 mph
Fri

Friday has a real shower chance.

Rain
67%
Humidity
49–100%
Wind
29 mph
Sat

Saturday looks fairly quiet.

Rain
2%
Humidity
33–89%
Wind
21 mph
Sun

Sunday looks fairly quiet.

Rain
1%
Humidity
29–82%
Wind
9 mph
Mon

Monday looks fairly quiet.

Rain
0%
Humidity
32–89%
Wind
8 mph
  1. 85° / 68°Today carries a thunderstorm chance.62% rain · Humidity 65–100% · Wind 20 mph
  2. 68° / 47°Friday has a real shower chance.67% rain · Humidity 49–100% · Wind 29 mph
  3. 61° / 40°Saturday looks fairly quiet.2% rain · Humidity 33–89% · Wind 21 mph
  4. 67° / 36°Sunday looks fairly quiet.1% rain · Humidity 29–82% · Wind 9 mph
  5. 71° / 40°Monday looks fairly quiet.0% rain · Humidity 32–89% · Wind 8 mph

Environmental watch

Air quality + smoke

Air quality

St. Louis (Metro-east) area · Updated Thu 1:25 PM
44GoodUS AQI

No fresh outlook yet.

Sky check

No plume detected overhead

Satellite view · Updated Thu 7:45 AM

Air near ground44 · Good US AQI

Rain, in motion · Past four hours

Mount Vernon radar

Ready when you areSee what is moving toward Mount Vernon.

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 10 mph. Thunder is possible.

Humidity
72%
Wind
10 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 St. Louis (Metro-east) area, about 60 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 Mount Vernon, 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.