What is the weather in Mehlville, MO right now?

The latest observation from St. Louis Downtown Airport was 55°F and clear, reported at 10/26/2026, 10:10 PM CDT.

Will it rain in Mehlville, MO in the next 24 hours?

The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.

What is the 10-day forecast for Mehlville, MO?

The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 3 to Nov 4) come from the NOAA National Blend of Models, with highs of 65°F to 69°F and up to a 42% chance of precipitation. Model guidance this far out often changes.

What time is sunrise and sunset in Mehlville, MO today?

Sunrise is about 7:21 AM CDT and sunset is about 6:08 PM CDT (calculated for the center of the area, within a few minutes).

What is the normal October weather in Mehlville, MO?

At Cahokia, the 1991 to 2020 normal high in October is 70°F and the normal low is 46°F.

Checked Oct 26, 2026

Mehlville, MO Weather

Current conditions, hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Mehlville, MO current weather

55°F

Clear

H -- / L 52°Feels like 55°

Wildfire smoke overhead: light
No rain expected in the next 12 hours

Observed at St. Louis Downtown Airport (9.9 mi away), 10/26/2026, 10:10 PM CDT

Hourly forecast

NWS, updated 6:01 PM

Now58°
11 PM56°
Tue12 AM56°
1 AM55°
2 AM55°
3 AM54°
4 AM53°
5 AM53°
6 AM53°
7 AM52°
8 AM53°
9 AM56°
10 AM63°
11 AM67°
12 PM70°
1 PM72°
2 PM73°
3 PM73°
4 PM73°
5 PM74°
6 PM71°
7 PM68°
8 PM65°
9 PM61°
10 PM60°
11 PM59°
Wed12 AM57°
1 AM57°
2 AM56°
3 AM55°
4 AM55°
5 AM54°
6 AM54°
7 AM54°
8 AM54°
9 AM58°
10 AM64°
11 AM69°
12 PM73°
1 PM76°
2 PM78°
3 PM79°
4 PM78°
5 PM76°
6 PM73°
7 PM70°
8 PM68°
9 PM65°

10-day forecast

Tap a day for details

Today10/26Low 52°High
Tonight: Patchy fog after 3am. Partly cloudy, with a low around 52. South wind around 2 mph.
Partly Cloudy then Patchy Fog
Tue10/27Low 54°High 75°
Tuesday: Patchy fog before 8am. Mostly cloudy, with a high near 75. South wind 2 to 6 mph.
Tuesday Night: Mostly cloudy, with a low around 54. South wind around 3 mph.
Patchy Fog then Mostly Cloudy
Wed10/28Low 55°High 79°
Wednesday: Sunny, with a high near 79. South wind 2 to 6 mph.
Wednesday Night: Mostly clear, with a low around 55. South wind around 5 mph.
Sunny
Thu10/29Low 57°High 83°
Thursday: Sunny, with a high near 83.
Thursday Night: Partly cloudy, with a low around 57.
Sunny
Fri10/30Low 58°High 80°
Friday: Partly sunny, with a high near 80.
Friday Night: Mostly cloudy, with a low around 58.
Partly Sunny
Sat10/3138% chance of precipitationLow 59°High 75°
Saturday: A chance of rain showers after 7am. Mostly cloudy, with a high near 75. Chance of precipitation is 30%.
Saturday Night: A chance of rain showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Chance Rain Showers
Sun11/131% chance of precipitationLow 59°High 76°
Sunday: A slight chance of rain showers. Partly sunny, with a high near 76. Chance of precipitation is 20%.
Sunday Night: A chance of rain showers after midnight. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Slight Chance Rain Showers
Mon11/246% chance of precipitationLow High 75°
Monday: A chance of rain showers. Mostly cloudy, with a high near 75. Chance of precipitation is 50%.
Chance Rain Showers
Model blend
Tue11/3Model blend42% chance of precipitationLow 44°High 69°
Tuesday: Chance of rain. High near 69°. Low that night near 44°. About 0.88 in of precipitation.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Wed11/4Model blend20% chance of precipitationLow 40°High 65°
Wednesday: Partly cloudy, slight chance of rain. High near 65°. Low that night near 40°. About 0.02 in of precipitation.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 38.504, -90.316 from the NWS LSX office, updated 10/26/2026, 6:01 PM CDT · Official forecast on weather.gov

Days 9 to 10: NOAA National Blend of Models, station KCPS (St Louis/Downtown Arpt, 10 mi), model run 10/26/2026, 9:00 PM CDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

Now58°Mostly Clear0%2 mph
11 PM56°Partly Cloudy0%2 mph
12 AM56°Partly Cloudy0%2 mph
1 AM55°Partly Cloudy0%2 mph
2 AM55°Partly Cloudy1%2 mph
3 AM54°Patchy Fog1%2 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Line: temperature °F. Bars: chance of precipitation.

MonNow58° 0% Sky 11%2
11 PM56° 0% Sky 35%2
Tue 10/2712 AM56° 0% Sky 48%2
1 AM55° 0% Sky 39%2
2 AM55° 1% Sky 41%2
3 AM54° 1% Sky 48%2
4 AM53° 0% Sky 63%2
5 AM53° 0% Sky 52%2
6 AM53° 0% Sky 58%2
7 AM52° 0% Sky 67%2
8 AM53° 0% Sky 54%2
9 AM56° 0% Sky 62%3
10 AM63° 0% Sky 62%3
11 AM67° 0% Sky 84%3g8
12 PM70° 1% Sky 84%5
1 PM72° 1% Sky 86%6g12
2 PM73° 0% Sky 85%6g12
3 PM73° 0% Sky 66%6
4 PM73° 0% Sky 75%5g10
5 PM74° 1% Sky 81%5
6 PM71° 0% Sky 86%3
7 PM68° 0% Sky 81%3g8
8 PM65° 0% Sky 79%3
9 PM61° 0% Sky 55%3
10 PM60° 0% Sky 55%3
11 PM59° 0% Sky 61%3
Wed 10/2812 AM57° 0% Sky 60%2
1 AM57° 0% Sky 50%2
2 AM56° 0% Sky 58%2
3 AM55° 0% Sky 41%2
4 AM55° 0% Sky 42%2
5 AM54° 0% Sky 54%2
6 AM54° 0% Sky 39%2
7 AM54° 0% Sky 23%2
8 AM54° 0% Sky 21%2
9 AM58° 0% Sky 27%2g7
10 AM64° 0% Sky 32%3
11 AM69° 0% Sky 28%5
12 PM73° 0% Sky 25%5
1 PM76° 0% Sky 21%6
2 PM78° 0% Sky 19%6g12
3 PM79° 0% Sky 16%6g12
4 PM78° 0% Sky 14%6g12
5 PM76° 0% Sky 12%6g12
6 PM73° 0% Sky 11%5g10
7 PM70° 0% Sky 9%5g10
8 PM68° 0% Sky 8%5g10
9 PM65° 0% Sky 7%5g10
10 PM63° 0% Sky 6%5g10
11 PM61° 0% Sky 5%5g10
Thu 10/2912 AM60° 0% Sky 3%5
1 AM59° 0% Sky 2%5
2 AM58° 0% Sky 3%5
3 AM57° 0% Sky 5%5
4 AM57° 0% Sky 6%5
5 AM56° 0% Sky 6%5
6 AM55° 0% Sky 7%5
7 AM56° 4% Sky 7%5
8 AM59° 4% Sky 7%5
9 AM63° 4% Sky 7%5g10
10 AM68° 4% Sky 7%5g10
11 AM72° 4% Sky 14%5g10
12 PM76° 4% Sky 22%6g12
1 PM80° 0% Sky 29%6g12
2 PM82° 0% Sky 28%6g12
3 PM83° 0% Sky 26%5g10
4 PM83° 0% Sky 25%5
5 PM81° 0% Sky 28%5
6 PM78° 0% Sky 30%5
7 PM74° 1% Sky 32%5
8 PM71° 1% Sky 32%5
9 PM68° 1% Sky 32%3g8
10 PM66° 1% Sky 32%3g8
11 PM64° 1% Sky 32%3
Fri 10/3012 AM63° 1% Sky 32%2
1 AM62° 0% Sky 54%2
2 AM61° 0% Sky 54%2
3 AM60° 0% Sky 54%2
4 AM59° 0% Sky 54%2
5 AM58° 0% Sky 54%2
6 AM57° 0% Sky 54%1
7 AM58° 3% Sky 62%1
8 AM60° 3% Sky 62%1
9 AM64° 3% Sky 62%2
10 AM68° 3% Sky 62%2
11 AM72° 3% Sky 62%2g7
12 PM75° 3% Sky 62%3
1 PM78° 2% Sky 63%3g8
2 PM80° 2% Sky 63%3g9
3 PM80° 2% Sky 63%5
4 PM80° 2% Sky 63%5
5 PM78° 2% Sky 63%5
6 PM76° 2% Sky 63%5
7 PM73° 3% Sky 75%5
8 PM71° 3% Sky 75%5
9 PM68° 3% Sky 75%3
10 PM66° 3% Sky 75%3
11 PM64° 3% Sky 75%3
Sat 10/3112 AM63° 3% Sky 75%2
1 AM62° 7% Sky 76%2
2 AM61° 7% Sky 76%2
3 AM60° 7% Sky 76%1
4 AM60° 7% Sky 76%1
5 AM59° 7% Sky 76%1
6 AM59° 7% Sky 76%1
7 AM59° 18% Sky 83%1
8 AM60° 18% Sky 83%1
9 AM62° 18% Sky 83%2
10 AM65° 18% Sky 83%2
11 AM68° 18% Sky 83%2g7
12 PM71° 18% Sky 83%3g8
1 PM73° 33%0.01"Sky 75%3g9
2 PM74° 33%0.01"Sky 75%3g9
3 PM75° 33%0.01"Sky 75%5
4 PM74° 33%0.01"Sky 75%5
5 PM73° 33%0.01"Sky 75%5
6 PM71° 33%0.01"Sky 75%5
7 PM69° 37%0.01"Sky 79%5
8 PM67° 37%0.01"Sky 79%3
9 PM65° 37%0.01"Sky 79%3
10 PM63° 37%0.01"Sky 79%2
11 PM62° 37%0.01"Sky 79%2
Sun 11/112 AM61° 37%0.01"Sky 79%2
1 AM61° 38%0.03"Sky 76%2
1 AM61° 38%0.03"Sky 76%2
2 AM60° 38%0.03"Sky 76%2
3 AM60° 38%0.03"Sky 76%2
4 AM59° 38%0.03"Sky 76%2
5 AM59° 38%0.03"Sky 76%2
6 AM59° 20% Sky 70%2
7 AM61° 20% Sky 70%2
8 AM63° 20% Sky 70%3
9 AM66° 20% Sky 70%3
10 AM69° 20% Sky 70%3
11 AM71° 20% Sky 70%5
12 PM73° 15% Sky 65%5
1 PM75° 15% Sky 65%5
2 PM76° 15% Sky 65%3g9
3 PM76° 15% Sky 65%3g8
4 PM75° 15% Sky 65%3
5 PM72° 15% Sky 65%3
6 PM70° 9% Sky 72%3
7 PM68° 9% Sky 72%3
8 PM66° 9% Sky 72%2
9 PM64° 9% Sky 72%2
10 PM63° 9% Sky 72%2
11 PM62° 9% Sky 72%2
Mon 11/212 AM62° 31%0.02"Sky 76%2
1 AM62° 31%0.02"Sky 76%2
2 AM61° 31%0.02"Sky 76%2
3 AM61° 31%0.02"Sky 76%2
4 AM60° 31%0.02"Sky 76%2
5 AM60° 31%0.02"Sky 76%3
6 AM60° 43%0.03"Sky 73%3
7 AM61° 43%0.03"Sky 73%5
8 AM64° 43%0.03"Sky 73%5

Temperature °F · chance of precipitation · amount in inches (T = trace) · sky cover · wind and gusts (g) in mph

NWS hourly forecast updated 10/26/2026, 6:01 PM CDT

Radar and satellite

National radar

NEXRAD (last 50 min) and GOES

Latest

Nearby hazards

Missouri hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
River gauges within 40 miles at or above flood stage: None reported
Active wildfires within 50 miles: None reported

Drought

By county

St. Louis County, week of 10/20/2026

100% of the county is abnormally dry. No drought.

Frequently asked questions

What is the weather in Mehlville, MO right now?: The latest observation from St. Louis Downtown Airport was 55°F and clear, reported at 10/26/2026, 10:10 PM CDT.
Will it rain in Mehlville, MO in the next 24 hours?: The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Mehlville, MO?: The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 3 to Nov 4) come from the NOAA National Blend of Models, with highs of 65°F to 69°F and up to a 42% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Mehlville, MO today?: Sunrise is about 7:21 AM CDT and sunset is about 6:08 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Mehlville, MO?: At Cahokia, the 1991 to 2020 normal high in October is 70°F and the normal low is 46°F.

Sun and moon

Local time, center of the area

Sunrise: 7:21 AM
Sunset: 6:08 PM
Daylight: 10 hr 47 min
Moon: Full Moon 99% lit

First light (civil dawn): 6:54 AM
Last light (civil dusk): 6:35 PM
Moonrise: 6:05 PM
Moonset: 7:57 AM

Normal October weather

Climate

Normal October high 70°, low 46°, precipitation 3.04 in for the month. 1991 to 2020 normals at Cahokia, 8 mi away.

Other places nearby

Data sources

National Weather Service APINOAA
National Blend of Models (NBM) text guidanceNOAA National Weather Service
Convective Outlooks and Storm ReportsNOAA Storm Prediction Center
Excessive Rainfall Outlook and Quantitative Precipitation ForecastsNOAA Weather Prediction Center
National Water Prediction ServiceNOAA National Weather Service
WFIGS Current Wildland Fire IncidentsNational Interagency Fire Center
Hazard Mapping System Smoke AnalysisNOAA NESDIS Office of Satellite and Product Operations
UV Index Forecast (Envirofacts)U.S. Environmental Protection Agency and NOAA
AirNowU.S. Environmental Protection Agency
NWS HeatRisk (experimental)NOAA National Weather Service
U.S. Drought MonitorNational Drought Mitigation Center, USDA and NOAA
BEACON 2.0 Beach Advisory and Closing On-line NotificationU.S. Environmental Protection Agency
U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information
Tides & Currents (CO-OPS API)NOAA Center for Operational Oceanographic Products and Services
NEXRAD radar tilesIowa Environmental Mesonet, Iowa State University
GOES-East and GOES-West GeoColor imageryNOAA NESDIS Center for Satellite Applications and Research

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About this data

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