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Saint Louis City
 Details for Saint Louis City Flood Watch  +1 additional alert
USA Weather Finder
Flood Watch FLOOD WATCH - Saint Louis City  - Saint Louis County

Regional Radar Regional Visible Satellite
Radar/Satellite images courtesy of Weather Underground.
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Updated: @ 19-May-2026 12:45am - next update at 12:50am  
Summary / Temperature Wind Rain Outlook
mostly clear mostly clear
Currently: 65.5, Max: 65.5, Min: 65.3 65.5°F
 

Comfortable

Feels like: 65.5°F

24-hr difference
-11.3°FColder 11.3°F than yesterday at this time.
  Today Yesterday
High: 65.5°F
12:28am 		78.4°F
9:08am
Low: 65.3°F
12:00am 		64.6°F
6:46pm
Wind from SW SW
0.3
Gust:
 0 mph
0 Bft - Calm
Today: 4.6 mph 7:00pm
Gust Month: 53.8 mph May 9
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 1.21 in
Storm Rain: 0 in
This Month: 1.66 in
Season Total: 11.39 in
6 rain days in May.
Tuesday

Tuesday: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Humidity & Barometer Almanac Moon
Humidity: 92 % Increased 1.0% since last hour.
Dew Point: 63.1°F Increased 0.3°F since last hour.
Barometer: 29.985 inHg Rising 0.01 inHg/hr
Baro Trend: Steady
Sunrise: 5:46am
Sunset: 8:08pm
Moonrise: 8:05am
Moonset: 10:53pm
Waxing Crescent
Waxing Crescent, Moon at 2 days in cycle
9%
Illuminated
UV Index Solar Radiation
   0.0    None
High: -1.0 @ 6:03am
0 W/m2 (0 %)
High: 0 @  12:00am
 NWS Weather Forecast  - Outlook: Overnight & Tuesday
Overnight

Overnight: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms

Lo 65 °F		 NWS forecast: A slight chance of showers and thunderstorms between 4am and 5am, then a chance of showers and thunderstorms. Partly cloudy. Low around 65, with temperatures rising to around 69 overnight. South wind around 8 mph. Chance of precipitation is 50%.
 
Tuesday

Tuesday: Showers And Thunderstorms Likely
Showers And T-Storms Likely

Hi 78 °F		 NWS forecast: A chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms between 10am and 11am, then showers and thunderstorms likely between 11am and 3pm, then showers and thunderstorms likely. Cloudy, with a high near 78. Southwest wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.