What is the weather in Ballwin, MO right now?

The latest observation from St. Louis, Spirit Of St. Louis Airport was 54°F and clear, reported at 10/26/2026, 8:54 PM CDT.

Will it rain in Ballwin, 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 Ballwin, 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 67°F to 70°F and up to a 39% chance of precipitation. Model guidance this far out often changes.

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

Sunrise is about 7:22 AM CDT and sunset is about 6:09 PM CDT (calculated for the center of the area, within a few minutes).

What is the normal October weather in Ballwin, MO?

At St Charles 7 Ssw, the 1991 to 2020 normal high in October is 70°F and the normal low is 46°F.

Checked Oct 26, 2026

Ballwin, MO Weather

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

Ballwin, MO current weather

54°F

Clear

H -- / L 52°Feels like 54°

No rain expected in the next 12 hours

Observed at St. Louis, Spirit Of St. Louis Airport (7.6 mi away), 10/26/2026, 8:54 PM CDT

Hourly forecast

NWS, updated 6:01 PM

Now60°
10 PM58°
11 PM57°
Tue12 AM57°
1 AM56°
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 PM62°
10 PM60°
11 PM59°
Wed12 AM58°
1 AM57°
2 AM57°
3 AM56°
4 AM55°
5 AM55°
6 AM55°
7 AM54°
8 AM54°
9 AM58°
10 AM64°
11 AM69°
12 PM73°
1 PM76°
2 PM78°
3 PM79°
4 PM79°
5 PM77°
6 PM74°
7 PM71°
8 PM68°

10-day forecast

Tap a day for details

Today10/26Low 52°High
Tonight: Partly cloudy, with a low around 52. South wind around 2 mph.
Partly Cloudy
Tue10/27Low 54°High 75°
Tuesday: 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.
Mostly Cloudy
Wed10/28Low 56°High 79°
Wednesday: Mostly sunny, with a high near 79. South wind 2 to 6 mph.
Wednesday Night: Mostly clear, with a low around 56. South wind around 5 mph.
Mostly 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 81°
Friday: Partly sunny, with a high near 81.
Friday Night: Mostly cloudy, with a low around 58.
Partly Sunny
Sat10/3136% chance of precipitationLow 58°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 58. Chance of precipitation is 40%.
Chance Rain Showers
Sun11/132% chance of precipitationLow 58°High 76°
Sunday: A slight chance of rain showers before noon. Partly sunny, with a high near 76. Chance of precipitation is 20%.
Sunday Night: A chance of rain showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Slight Chance Rain Showers then Partly Sunny
Mon11/247% 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 blend39% chance of precipitationLow 45°High 70°
Tuesday: Chance of rain. High near 70°. Low that night near 45°. About 0.20 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 blend22% chance of precipitationLow 41°High 67°
Wednesday: Partly cloudy, slight chance of rain. High near 67°. Low that night near 41°. About 0.03 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 38.591, -90.544 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 KSUS (St Louis/Spirit of St Louis Arpt, 8 mi), model run 10/26/2026, 3:00 PM CDT

Forecaster's discussionIssued 10/26/2026, 6:04 PM CDT

Key messages

- Warm and mostly dry weather is forecast through the end of the week.

- There is a 30-50% chance of light rain this weekend. Widespread rainfall is not expected.

Short term

Issued at 257 PM CDT Mon Oct 26 2026

Our stubborn pattern of 70s for afternoon highs and mostly 50s for morning lows will continue through Tuesday night as upper level ridging and surface high pressure continue to dominate our sensible weather. The ridge aloft is breaking down, and this will allow a shortwave to ride its northern edge into the Mid-Mississippi Valley tomorrow. The greatest impacts from this will include slightly cooler temperatures than today due to increased cloud cover and a slim chance of sprinkles late in the day and into the overnight hours. Although the lift and saturation may briefly be in place for sprinkles, dry low levels are expected to prevent any droplets from reaching the ground.

Long term

Issued at 257 PM CDT Mon Oct 26 2026

The upper-level ridge will continue to flatten through the week, and surface high pressure will be compressed to our south and east. For the most part, the loss of the protective ridging will only allow more high cloud cover to blow into the region. Despite the clouds, low-level warm air advection is expected to pick up in the middle of this week as winds veer to southwesterly. NBM max temperature IQR spread yields high confidence in warmer highs on Wednesday and Thursday, as it only reaches 2-3 degrees centered around 78 degrees and 82 degrees respectively.

At the same time, a shortwave will be traversing the northern Plains/upper Midwest, and its surface reflection will be pushing a cold front into the Mid-Mississippi Valley. Deterministic guidance disagrees whether or not the front will reach northern Missouri/west- central Illinois on Thursday morning, or if it will have enough moisture convergence along it to produce light rain. Our better chance for rain will come Saturday night into Sunday morning as another shortwave enters the region. This feature is forecast to be weakening as it arrives, but to what extent is uncertain. Low-level convergence does not look appreciable either, so a widespread rainfall is not expected. NBM and LREF probabilities are still consistent in showing a 30-50% chance of 0.25" of rain this weekend, corroborating this.

Aviation

Issued at 602 PM CDT Mon Oct 26 2026

Aside from the renewed threat for MVFR to IFR fog at times tonight at KSUS and KJEF, dry and VFR conditions continue through Wednesday. With fewer clouds overhead compared to last night, and fog still developing despite those clouds, radiational cooling will be efficient and promote the fog development.

Watches, warnings and advisories

MO: None. IL: None.

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

Next 6 hours

NWS hourly forecast

Now60°Mostly Clear0%2 mph
10 PM58°Mostly Clear0%2 mph
11 PM57°Mostly Cloudy0%2 mph
12 AM57°Partly Cloudy0%2 mph
1 AM56°Mostly Cloudy0%2 mph
2 AM55°Partly Cloudy0%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.

MonNow60° 0% Sky 9%2
10 PM58° 0% Sky 19%2
11 PM57° 0% Sky 55%2
Tue 10/2712 AM57° 0% Sky 31%2
1 AM56° 0% Sky 53%2
2 AM55° 0% Sky 46%2
3 AM54° 0% Sky 59%2
4 AM53° 0% Sky 60%2
5 AM53° 0% Sky 53%2
6 AM53° 0% Sky 58%2
7 AM52° 0% Sky 71%2
8 AM53° 0% Sky 70%2
9 AM56° 0% Sky 68%3
10 AM63° 0% Sky 75%3
11 AM67° 1% Sky 77%5
12 PM70° 1% Sky 80%5
1 PM72° 1% Sky 69%6
2 PM73° 0% Sky 78%6
3 PM73° 0% Sky 78%5g10
4 PM73° 0% Sky 82%5
5 PM74° 0% Sky 86%3g8
6 PM71° 0% Sky 85%3
7 PM68° 0% Sky 91%3
8 PM65° 0% Sky 64%3
9 PM62° 0% Sky 49%3
10 PM60° 0% Sky 62%3
11 PM59° 0% Sky 71%3
Wed 10/2812 AM58° 0% Sky 64%2
1 AM57° 0% Sky 58%2
2 AM57° 0% Sky 56%2
3 AM56° 0% Sky 50%2
4 AM55° 0% Sky 45%2
5 AM55° 0% Sky 55%2
6 AM55° 0% Sky 59%2
7 AM54° 0% Sky 36%2
8 AM54° 0% Sky 25%2
9 AM58° 0% Sky 31%2g7
10 AM64° 0% Sky 36%3
11 AM69° 0% Sky 33%3g8
12 PM73° 0% Sky 29%5
1 PM76° 0% Sky 26%5g10
2 PM78° 0% Sky 22%5g12
3 PM79° 0% Sky 19%6g12
4 PM79° 0% Sky 15%6g12
5 PM77° 0% Sky 13%6g12
6 PM74° 0% Sky 12%5g10
7 PM71° 0% Sky 10%5g10
8 PM68° 0% Sky 8%5g10
9 PM66° 0% Sky 6%5g10
10 PM64° 0% Sky 4%5g10
11 PM63° 0% Sky 4%5g10
Thu 10/2912 AM62° 0% Sky 4%5
1 AM61° 0% Sky 4%5
2 AM60° 0% Sky 6%5
3 AM59° 0% Sky 7%5
4 AM58° 0% Sky 9%5
5 AM56° 0% Sky 8%5
6 AM56° 0% Sky 8%5
7 AM56° 5% Sky 7%5
8 AM59° 5% Sky 10%5
9 AM63° 5% Sky 12%5g10
10 AM68° 5% Sky 15%5g10
11 AM72° 5% Sky 18%5g10
12 PM76° 5% Sky 21%6
1 PM80° 1% Sky 24%6
2 PM82° 1% Sky 24%6
3 PM83° 1% Sky 23%6
4 PM83° 1% Sky 23%5
5 PM81° 1% Sky 28%3g8
6 PM78° 1% Sky 32%2g7
7 PM74° 4% Sky 36%2
8 PM71° 4% Sky 36%2g7
9 PM68° 4% Sky 36%3
10 PM66° 4% Sky 36%3
11 PM64° 4% Sky 36%3
Fri 10/3012 AM63° 4% Sky 36%2
1 AM62° 1% Sky 57%2
2 AM61° 1% Sky 57%2
3 AM60° 1% Sky 57%1
4 AM59° 1% Sky 57%1
5 AM58° 1% Sky 57%1
6 AM57° 1% Sky 57%2
7 AM58° 4% Sky 65%2
8 AM60° 4% Sky 65%2
9 AM64° 4% Sky 65%2
10 AM68° 4% Sky 65%2g7
11 AM72° 4% Sky 65%2g8
12 PM75° 4% Sky 65%3g8
1 PM78° 3% Sky 65%3g8
2 PM80° 3% Sky 65%3g8
3 PM80° 3% Sky 65%5
4 PM80° 3% Sky 65%5
5 PM78° 3% Sky 65%5
6 PM76° 3% Sky 65%3g8
7 PM73° 4% Sky 75%3g8
8 PM71° 4% Sky 75%3g8
9 PM68° 4% Sky 75%3
10 PM66° 4% Sky 75%3
11 PM64° 4% Sky 75%3
Sat 10/3112 AM63° 4% Sky 75%2
1 AM62° 8% Sky 80%2
2 AM61° 8% Sky 80%2
3 AM60° 8% Sky 80%1
4 AM60° 8% Sky 80%1
5 AM59° 8% Sky 80%1
6 AM59° 8% Sky 80%2
7 AM59° 20% Sky 84%2
8 AM61° 20% Sky 84%2
9 AM63° 20% Sky 84%2
10 AM66° 20% Sky 84%2
11 AM69° 20% Sky 84%2g7
12 PM71° 20% Sky 84%3g8
1 PM73° 34%0.01"Sky 78%3g9
2 PM74° 34%0.01"Sky 78%3g9
3 PM74° 34%0.01"Sky 78%5
4 PM74° 34%0.01"Sky 78%5
5 PM73° 34%0.01"Sky 78%5
6 PM71° 34%0.01"Sky 78%3g8
7 PM69° 36%0.01"Sky 79%3g8
8 PM67° 36%0.01"Sky 79%3
9 PM66° 36%0.01"Sky 79%2g7
10 PM64° 36%0.01"Sky 79%2
11 PM63° 36%0.01"Sky 79%2
Sun 11/112 AM62° 36%0.01"Sky 79%1
1 AM61° 36%0.03"Sky 77%1
1 AM61° 36%0.03"Sky 77%1
2 AM60° 36%0.03"Sky 77%1
3 AM60° 36%0.03"Sky 77%1
4 AM59° 36%0.03"Sky 77%1
5 AM59° 36%0.03"Sky 77%2
6 AM59° 20% Sky 71%2
7 AM61° 20% Sky 71%2
8 AM63° 20% Sky 71%3
9 AM66° 20% Sky 71%3
10 AM69° 20% Sky 71%3g8
11 AM71° 20% Sky 71%5
12 PM73° 14% Sky 66%5
1 PM75° 14% Sky 66%5
2 PM76° 14% Sky 66%3g9
3 PM76° 14% Sky 66%3g8
4 PM75° 14% Sky 66%3
5 PM72° 14% Sky 66%2
6 PM70° 15% Sky 71%2
7 PM68° 15% Sky 71%2
8 PM66° 15% Sky 71%2
9 PM64° 15% Sky 71%2
10 PM63° 15% Sky 71%2
11 PM62° 15% Sky 71%2
Mon 11/212 AM62° 32%0.03"Sky 79%2
1 AM61° 32%0.03"Sky 79%2
2 AM61° 32%0.03"Sky 79%2
3 AM60° 32%0.03"Sky 79%2
4 AM60° 32%0.03"Sky 79%2
5 AM59° 32%0.03"Sky 79%3
6 AM60° 42%0.03"Sky 75%3

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 Ballwin, MO right now?: The latest observation from St. Louis, Spirit Of St. Louis Airport was 54°F and clear, reported at 10/26/2026, 8:54 PM CDT.
Will it rain in Ballwin, 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 Ballwin, 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 67°F to 70°F and up to a 39% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Ballwin, MO today?: Sunrise is about 7:22 AM CDT and sunset is about 6:09 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Ballwin, MO?: At St Charles 7 Ssw, 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: 7:22 AM
Sunset: 6:09 PM
Daylight: 10 hr 46 min
Moon: Full Moon 99% lit

First light (civil dawn): 6:55 AM
Last light (civil dusk): 6:36 PM
Moonrise: 6:06 PM
Moonset: 7:58 AM

Normal October weather

Climate

Normal October high 70°, low 46°, precipitation 3.20 in for the month. 1991 to 2020 normals at St Charles 7 Ssw, 7 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
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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