![National Oceanic and Atmospheric Administration](/build/images/header/noaa.d87e0251.png)
![National Weather Service](/build/images/header/nws.4e6585d8.png)
![United States Department of Commerce](/build/images/header/doc.b38ba91a.png)
News Headlines
Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.![](newimages/large/nsct.png)
Fair
77°F
25°C
Humidity | 77% |
Wind Speed | E 6 mph |
Barometer | 30.06 in (1017.6 mb) |
Dewpoint | 69°F (21°C) |
Visibility | 10.00 mi |
Heat Index | 79°F (26°C) |
Last update | 26 Jul 9:53 pm CDT |
Extended Forecast for
Herculaneum MO
Tonight
Low: 66 °F
Mostly Cloudy
Saturday
High: 82 °F
Chance
Showers then
Showers
LikelySaturday Night
Low: 71 °F
Showers
Likely then
Chance
T-stormsSunday
High: 87 °F
Chance
T-storms then
Showers
LikelySunday Night
Low: 71 °F
Chance
Showers then
Partly CloudyMonday
High: 92 °F
Chance
T-stormsMonday Night
Low: 74 °F
Chance
T-stormsTuesday
High: 96 °F
Slight Chance
T-stormsTuesday Night
Low: 75 °F
Slight Chance
T-storms
Detailed Forecast
Tonight
Mostly cloudy, with a low around 66. Calm wind.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 82. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 87. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 70%.
Sunday Night
A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 71. South wind 3 to 5 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 74.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 74.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
Additional Forecasts and Information
Click Map For Forecast
ABOUT THIS FORECAST
Point Forecast:
Herculaneum MO
38.27°N 90.39°W (Elev. 456 ft)
38.27°N 90.39°W (Elev. 456 ft)
10:22 pm CDT Jul 26, 2024
10pm CDT Jul 26, 2024-6pm CDT Aug 2, 2024