Tomorrow Hourly Weather Forecast for St. Charles, MO

Hourly Weather | Tomorrow › Wednesday, June 10, 2026

Active Weather Warnings

Flood Warning

St. Charles, Missouri

12 AM

81°

Feels Like 88°

Humidity: 80%

UV Index: 0

Wind: 6 mph

1 AM

81°

Feels Like 86°

Humidity: 82%

UV Index: 0

Wind: 6 mph

2 AM

79°

Feels Like 84°

Humidity: 82%

UV Index: 0

Wind: 7 mph

3 AM

79°

Feels Like 84°

Humidity: 82%

UV Index: 0

Wind: 7 mph

4 AM

79°

Feels Like 82°

Humidity: 83%

UV Index: 0

Wind: 7 mph

5 AM

75°

Feels Like 81°

Humidity: 86%

UV Index: 0

Wind: 7 mph

6 AM

77°

Feels Like 81°

Humidity: 81%

UV Index: 0

Wind: 7 mph

7 AM

77°

Feels Like 82°

Humidity: 80%

UV Index: 1

Wind: 7 mph

8 AM

81°

Feels Like 86°

Humidity: 74%

UV Index: 2

Wind: 8 mph

9 AM

82°

Feels Like 90°

Humidity: 68%

UV Index: 3

Wind: 10 mph

10 AM

86°

Feels Like 93°

Humidity: 63%

UV Index: 5

Wind: 12 mph

11 AM

88°

Feels Like 97°

Humidity: 59%

UV Index: 8

Wind: 13 mph

12 PM

90°

Feels Like 100°

Humidity: 55%

UV Index: 10

Wind: 13 mph

1 PM

91°

Feels Like 100°

Humidity: 52%

UV Index: 11

Wind: 13 mph

2 PM

91°

Feels Like 100°

Humidity: 50%

UV Index: 10

Wind: 13 mph

3 PM

93°

Feels Like 100°

Humidity: 48%

UV Index: 8

Wind: 12 mph

4 PM

91°

Feels Like 99°

Humidity: 49%

UV Index: 5

Wind: 12 mph

5 PM

91°

Feels Like 97°

Humidity: 50%

UV Index: 3

Wind: 12 mph

6 PM

91°

Feels Like 95°

Humidity: 52%

UV Index: 2

Wind: 12 mph

7 PM

90°

Feels Like 93°

Humidity: 54%

UV Index: 1

Wind: 10 mph

8 PM

88°

Feels Like 91°

Humidity: 58%

UV Index: 0

Wind: 9 mph

9 PM

84°

Feels Like 90°

Humidity: 64%

UV Index: 0

Wind: 8 mph

10 PM

82°

Feels Like 88°

Humidity: 70%

UV Index: 0

Wind: 8 mph

11 PM

81°

Feels Like 82°

Humidity: 79%

UV Index: 0

Wind: 8 mph

Weather Alerts and Warnings for St. Charles

Severe Immediate Observed

Flood Warning

Flood Warning issued June 9 at 8:47PM CDT until June 12 at 1:00AM CDT by NWS St Louis MO

Jun 9, 8:47 PM → Jun 12, 1:00 AM

...The Flood Warning is extended for the following river in
Missouri...

Missouri River at St. Charles.

Missouri River at Washington.

...The Flood Warning continues for the following rivers in
Missouri...

Osage River near Mari-Osa Campground.

Missouri River at Hermann.

Missouri River near Chamois.

River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.

WHAT: Minor flooding is occurring and minor flooding is forecast.

WHERE: Missouri River at St. Charles.

WHEN: Until late Thursday night.

ADDITIONAL DETAILS:
- At 8:30 PM CDT Tuesday the stage was 27.2 feet.
- Forecast...The river is expected to fall below flood stage
Wednesday evening.
- Flood stage is 25.0 feet.

+ Read More

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Updated: Jun 9, 9:08 PM Source: NWS Alert

Weather Alerts and Warnings for St. Charles

Flood Warning

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