Today carries a thunderstorm chance.
- Rain
- 87%
- Humidity
- 72–100%
- Wind
- 24 mph
Current concerns
Outdoor planning
Now
- 79°Chance Showers And Thunderstorms46% rain77% humidityGusts 15 mph
- 80°Chance Showers And Thunderstorms44% rain74% humidityGusts 17 mph
- 80°Chance Showers And Thunderstorms41% rain74% humidityGusts 18 mph
- 80°Chance Showers And Thunderstorms34% rain74% humidityGusts 18 mph
- 80°Chance Showers And Thunderstorms43% rain72% humidityGusts 20 mph
- 79°Chance Showers And Thunderstorms45% rain72% humidityGusts 21 mph
- 76°Scattered Showers And Thunderstorms47% rain79% humidityGusts 20 mph
- 71°Chance Showers And Thunderstorms55% rain90% humidityGusts 20 mph
- 69°Chance Showers And Thunderstorms65% rain93% humidityGusts 21 mph
- 67°Scattered Rain Showers50% rain100% humidityGusts 23 mph
- 63°Chance Rain Showers61% rain100% humidityGusts 24 mph
- 60°Chance Rain Showers63% rain96% humidityGusts 24 mph
- 57°Isolated Rain Showers22% rain93% humidityGusts 24 mph
- 54°Cloudy4% rain93% humidityGusts 24 mph
- 53°Cloudy2% rain93% humidityGusts 23 mph
- 52°Mostly Cloudy1% rain89% humidityGusts 23 mph
- 49°Mostly Cloudy0% rain93% humidityGusts 24 mph
- 48°Partly Sunny0% rain89% humidityGusts 25 mph
- 47°Mostly Sunny0% rain86% humidityGusts 26 mph
- 46°Mostly Sunny0% rain89% humidityGusts 28 mph
- 50°Mostly Sunny0% rain80% humidityGusts 28 mph
- 54°Mostly Sunny0% rain64% humidityGusts 29 mph
- 56°Partly Sunny0% rain59% humidityGusts 30 mph
- 57°Partly Sunny0% rain57% humidityGusts 30 mph
A little farther out
The next five days
Friday has a real shower chance.
- Rain
- 63%
- Humidity
- 57–96%
- Wind
- 31 mph
Saturday looks fairly quiet.
- Rain
- 3%
- Humidity
- 35–92%
- Wind
- 20 mph
Sunday looks fairly quiet.
- Rain
- 0%
- Humidity
- 33–85%
- Wind
- 12 mph
Monday looks fairly quiet.
- Rain
- 0%
- Humidity
- 34–92%
- Wind
- 6 mph
- 80° / 63°Today carries a thunderstorm chance.87% rain · Humidity 72–100% · Wind 24 mph
- 60° / 46°Friday has a real shower chance.63% rain · Humidity 57–96% · Wind 31 mph
- 62° / 38°Saturday looks fairly quiet.3% rain · Humidity 35–92% · Wind 20 mph
- 68° / 38°Sunday looks fairly quiet.0% rain · Humidity 33–85% · Wind 12 mph
- 73° / 40°Monday looks fairly quiet.0% rain · Humidity 34–92% · Wind 6 mph
Environmental watch
Air quality + smoke
Air quality
Saint Louis area · Updated Thu 12:26 PMNo fresh outlook yet.
51 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 ground51 · Moderate US AQI
Rain, in motion · Past four hours
Portage Des Sioux radar
Radar animation for Portage Des Sioux, 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.
Nearby regional view
Explore St. Louis
About 13 miles away, the St. Louis hub looks more deeply at St. Louis, MO-IL. It reflects that wider area rather than Portage Des Sioux’s exact conditions.
About these readingsSources and local limits
Weather
Forecasts, alerts, and radar come from NOAA and the National Weather Service.
Air quality
This reading describes Saint Louis area, about 28 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 Portage Des Sioux, MO, 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.