Weather Forecast for St Louis

Missouri, United States of America

select dropwdown icon
Share
Overcast

Current Weather - St Louis: 9°C

Missouri, United States of America

Overcast

Feels like 6°C

Wind

22 km/h WNW

Humidity

77%

Pressure

1016 mb

UV Index

1

Visibility

16 km

Heavy rain

Heavy rain

Saturday, March 07, 2026

High

18°C

Low

6°C

Rain Chance

85%

Hourly Forecast

Overcast 6°C
23:00
Mar 08

Day Statistics

Maximum Wind

28 km/h

Humidity

88%

Precipitation

20 mm

UV Index

1

Visibility

10 km

Rain Chance

85%

Snow Chance

0%

Sun & Moon

Sunrise

06:24 AM

Sunset

06:00 PM

Moonrise

10:40 PM

Moonset

08:06 AM

Moon Phase

Waning Gibbous

Moon Illumination

87%

Air Quality

PM2.5

3.7

μg/m³

PM10

3.8

μg/m³

NO₂

6.5

μg/m³

O₃

60.6

μg/m³

SO₂

2.3

μg/m³

CO

161.3

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Weather Alerts

Flood Warning issued March 6 at 6:27PM CST until March 10 at 5:00AM CDT by NWS St Louis MO

Jefferson, MO; St. Louis, MO Mar 6, 06:27 PM - Mar 8, 07:30 AM
Severity: Severe Urgency: Expected

...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri... Meramec River near Eureka. Meramec River at Valley Park. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. * WHAT...Minor flooding is forecast. * WHERE...Meramec River near Eureka. * WHEN...From Saturday morning to late Monday night. * IMPACTS...At 22.0 feet, Willman Road near the Highway 109 bridge becomes inundated and impassable. * ADDITIONAL DETAILS... - At 6:00 PM CST Friday the stage was 15.0 feet. - Forecast...The river is expected to rise above flood stage late tomorrow morning to a crest of 22.5 feet Sunday morning. It will then fall below flood stage late Sunday evening. - Flood stage is 19.0 feet.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Event: Flood Warning Certainty: Likely Category: Met

Flood Warning issued March 6 at 6:27PM CST until March 10 at 7:00AM CDT by NWS St Louis MO

Jefferson, MO; St. Louis, MO Mar 6, 06:27 PM - Mar 8, 07:30 AM
Severity: Severe Urgency: Expected

...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri... Meramec River near Eureka. Meramec River at Valley Park. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. * WHAT...Minor flooding is forecast. * WHERE...Meramec River at Valley Park. * WHEN...From Saturday evening to Tuesday morning. * IMPACTS...At 19.5 feet, Buder Park and the recreation park at the water plant floods. * ADDITIONAL DETAILS... - At 6:00 PM CST Friday the stage was 10.6 feet. - Forecast...The river is expected to rise above flood stage late tomorrow evening to a crest of 19.7 feet early Sunday afternoon. It will then fall below flood stage early Monday morning. - Flood stage is 18.0 feet.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Event: Flood Warning Certainty: Likely Category: Met

Flood Warning issued March 7 at 11:53AM CST until March 12 at 12:34AM CDT by NWS St Louis MO

Jefferson, MO; St. Louis, MO Mar 7, 11:53 AM - Mar 9, 01:00 AM
Severity: Severe Urgency: Immediate

...The Flood Warning is extended for the following rivers in Missouri... Meramec River near Eureka. Big River at Byrnesville. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Meramec River near Eureka. * WHEN...Until late Wednesday night. * IMPACTS...At 24.5 feet, The athletic fields at Eureka Senior High School begin flooding near this height. * ADDITIONAL DETAILS... - At 11:00 AM CST Saturday the stage was 21.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CST Saturday was 21.3 feet. - Forecast...The river is expected to rise to a crest of 24.5 feet tomorrow morning. It will then fall below flood stage Tuesday evening. - Flood stage is 19.0 feet.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Event: Flood Warning Certainty: Observed Category: Met

Flood Warning issued March 7 at 10:50AM CST until March 10 at 4:00PM CDT by NWS St Louis MO

Jefferson, MO; St. Louis, MO Mar 7, 10:50 AM - Mar 9, 12:00 AM
Severity: Severe Urgency: Expected

...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri... Meramec River at Fenton. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. * WHAT...Minor flooding is forecast. * WHERE...Meramec River at Fenton. * WHEN...From Sunday afternoon to Tuesday afternoon. * IMPACTS...At 22.9 feet, At this height, the entire boat ramp path at Minnie Ha Ha Park will be submerged. * ADDITIONAL DETAILS... - At 10:15 AM CST Saturday the stage was 18.1 feet. - Forecast...The river is expected to rise above flood stage early tomorrow afternoon to a crest of 23.4 feet tomorrow evening. It will then fall below flood stage late Monday morning. - Flood stage is 23.0 feet.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Event: Flood Warning Certainty: Likely Category: Met

Flood Warning issued March 7 at 10:42AM CST until March 12 at 1:00AM CDT by NWS St Louis MO

Jefferson, MO; St. Louis, MO Mar 7, 10:42 AM - Mar 8, 11:45 PM
Severity: Severe Urgency: Expected

...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in Missouri... Meramec River at Valley Park. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. * WHAT...Moderate flooding is forecast. * WHERE...Meramec River at Valley Park. * WHEN...Until late Wednesday night. * IMPACTS...At 21.9 feet, Yarnell Road is closed at Riverside Drive. Larkin Williams is closed at Riverside Golf Club entrance. In Valley Park...Tree Court Industrial Road begins flooding between Marshall Road and Scarlet Oak Boulevard. Also...the golf course at Family Golf and Learning Center and the Kirkwood Athletic Association ball fields begin flooding near this height. * ADDITIONAL DETAILS... - At 10:00 AM CST Saturday the stage was 16.6 feet. - Forecast...The river is expected to rise above flood stage this afternoon to a crest of 21.5 feet early tomorrow afternoon. It will then fall below flood stage Tuesday evening. - Flood stage is 18.0 feet.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Event: Flood Warning Certainty: Likely Category: Met