Outdoor conditions in

Marthasville

Missouri
Air qualityAir quality is moderate at the official reporting area.Air near ground level
Now
  1. 75°Chance Showers And Thunderstorms48% rain90% humidityGusts 14 mph
  2. 78°Chance Showers And Thunderstorms35% rain85% humidityGusts 14 mph
  3. 79°Chance Showers And Thunderstorms32% rain82% humidityGusts 16 mph
  4. 79°Chance Showers And Thunderstorms30% rain82% humidityGusts 16 mph
  5. 78°Chance Showers And Thunderstorms35% rain85% humidityGusts 17 mph
  6. 78°Chance Showers And Thunderstorms44% rain82% humidityGusts 18 mph
  7. 76°Chance Showers And Thunderstorms45% rain85% humidityGusts 18 mph
  8. 72°Scattered Showers And Thunderstorms45% rain97% humidityGusts 17 mph
  9. 70°Chance Showers And Thunderstorms56% rain97% humidityGusts 18 mph
  10. 68°Chance Showers And Thunderstorms68% rain97% humidityGusts 22 mph
  11. 65°Scattered Rain Showers42% rain100% humidityGusts 23 mph
  12. 62°Scattered Rain Showers43% rain97% humidityGusts 22 mph
  13. 58°Scattered Rain Showers40% rain100% humidityGusts 22 mph
  14. 55°Cloudy14% rain100% humidityGusts 21 mph
  15. 53°Cloudy2% rain100% humidityGusts 20 mph
  16. 52°Mostly Cloudy2% rain100% humidityGusts 21 mph
  17. 50°Mostly Cloudy1% rain100% humidityGusts 22 mph
  18. 48°Mostly Cloudy0% rain100% humidityGusts 23 mph
  19. 46°Partly Sunny0% rain96% humidityGusts 24 mph
  20. 45°Partly Sunny0% rain93% humidityGusts 25 mph
  21. 44°Mostly Sunny0% rain96% humidityGusts 26 mph
  22. 46°Mostly Sunny0% rain96% humidityGusts 26 mph
  23. 49°Partly Sunny0% rain89% humidityGusts 25 mph
  24. 52°Mostly Cloudy0% rain80% humidityGusts 24 mph
Extra care for

A little farther out

The next five days

Today

Today carries a thunderstorm chance.

Rain
91%
Humidity
82–100%
Wind
23 mph
Fri

Friday has a real shower chance.

Rain
40%
Humidity
69–100%
Wind
26 mph
Sat

Saturday looks fairly quiet.

Rain
3%
Humidity
47–100%
Wind
14 mph
Sun

Sunday looks fairly quiet.

Rain
0%
Humidity
42–96%
Wind
8 mph
Mon

Monday looks fairly quiet.

Rain
1%
Humidity
44–100%
Wind
5 mph
  1. 79° / 62°Today carries a thunderstorm chance.91% rain · Humidity 82–100% · Wind 23 mph
  2. 58° / 44°Friday has a real shower chance.40% rain · Humidity 69–100% · Wind 26 mph
  3. 59° / 36°Saturday looks fairly quiet.3% rain · Humidity 47–100% · Wind 14 mph
  4. 67° / 36°Sunday looks fairly quiet.0% rain · Humidity 42–96% · Wind 8 mph
  5. 72° / 38°Monday looks fairly quiet.1% rain · Humidity 44–100% · Wind 5 mph

Environmental watch

Air quality + smoke

Air quality

Saint Louis area · Updated Thu 11:26 AM
62ModerateUS AQI

No fresh outlook yet.

62 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 AM

Air near ground62 · Moderate US AQI

Rain, in motion · Past four hours

Marthasville radar

Ready when you areSee what is moving toward Marthasville.

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

Thunder is possible.

Humidity
90%
Wind
5 mph
Gusts
14 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 Saint Louis area, about 19 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 Marthasville, 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.