Today carries a thunderstorm chance.
- Rain
- 72%
- Humidity
- 82–100%
- Wind
- 20 mph
Current concerns
Outdoor planning
Now
- 78°Chance Showers And Thunderstorms52% rain82% humidityGusts 16 mph
- 77°Chance Showers And Thunderstorms34% rain88% humidityGusts 16 mph
- 77°Chance Showers And Thunderstorms36% rain85% humidityGusts 16 mph
- 76°Chance Showers And Thunderstorms44% rain82% humidityGusts 17 mph
- 72°Chance Showers And Thunderstorms41% rain97% humidityGusts 17 mph
- 69°Chance Showers And Thunderstorms38% rain100% humidityGusts 17 mph
- 68°Chance Showers And Thunderstorms46% rain100% humidityGusts 17 mph
- 68°Chance Showers And Thunderstorms49% rain100% humidityGusts 16 mph
- 65°Showers And Thunderstorms Likely56% rain100% humidityGusts 20 mph
- 62°Showers And Thunderstorms Likely71% rain100% humidityGusts 24 mph
- 58°Slight Chance Rain Showers17% rain100% humidityGusts 24 mph
- 56°Cloudy10% rain93% humidityGusts 25 mph
- 53°Cloudy14% rain93% humidityGusts 26 mph
- 51°Mostly Cloudy7% rain93% humidityGusts 25 mph
- 49°Cloudy5% rain96% humidityGusts 24 mph
- 49°Mostly Cloudy4% rain89% humidityGusts 24 mph
- 50°Mostly Cloudy3% rain83% humidityGusts 24 mph
- 49°Partly Sunny1% rain83% humidityGusts 25 mph
- 51°Mostly Sunny0% rain77% humidityGusts 26 mph
- 52°Mostly Sunny0% rain71% humidityGusts 25 mph
- 54°Mostly Cloudy0% rain61% humidityGusts 25 mph
- 55°Mostly Cloudy0% rain59% humidityGusts 25 mph
- 56°Mostly Cloudy4% rain57% humidityGusts 24 mph
- 56°Partly Sunny6% rain55% humidityGusts 24 mph
A little farther out
The next five days
Friday looks wet for a meaningful stretch.
- Rain
- 71%
- Humidity
- 55–100%
- Wind
- 26 mph
Saturday looks fairly quiet.
- Rain
- 0%
- Humidity
- 35–89%
- Wind
- 17 mph
Sunday looks fairly quiet.
- Rain
- 0%
- Humidity
- 27–92%
- Wind
- 10 mph
Monday looks fairly quiet.
- Rain
- 0%
- Humidity
- 29–96%
- Wind
- 8 mph
- 78° / 65°Today carries a thunderstorm chance.72% rain · Humidity 82–100% · Wind 20 mph
- 62° / 47°Friday looks wet for a meaningful stretch.71% rain · Humidity 55–100% · Wind 26 mph
- 60° / 36°Saturday looks fairly quiet.0% rain · Humidity 35–89% · Wind 17 mph
- 67° / 33°Sunday looks fairly quiet.0% rain · Humidity 27–92% · Wind 10 mph
- 71° / 37°Monday looks fairly quiet.0% rain · Humidity 29–96% · Wind 8 mph
Environmental watch
Air quality + smoke
Air quality
St. Louis (Metro-east) area · Updated Thu 3:26 PMNo fresh outlook yet.
54 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 ground54 · Moderate US AQI
Rain, in motion · Past four hours
Vandalia radar
Radar animation for Vandalia, 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 St. Louis (Metro-east) area, about 54 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 Vandalia, 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.