Weldon Spring, MO Weather Forecast
St. Charles County, Missouri
Live radar, warnings and storm tracking for Weldon Spring, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Weldon Spring
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Weldon Spring, MO at a glance
Weldon Spring is home to about 5,263 people in St. Charles County, across 7.6 square miles. It ranks 128th by population of 211 places in Missouri with a forecast here. The nearest neighbour with its own forecast is Cottleville, 3 miles away.
- County
- St. Charles County
- Population
- 5,263 2023 est.
- Land area
- 7.6 sq mi
- People per sq mi
- 688
- Forecast point
- 38.7094°N, 90.6525°W
How well can the network see Weldon Spring?
The nearest Doppler radar is KLSX (St. Louis, MO), to the WSW. Its lowest scan passes about 80 ft above Weldon Spring. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Weldon Spring show up clearly. Weldon Spring is closer to its radar than 99% of US cities.
The closest weather station is KSUS (St Louis/Spirit of St Louis Arpt). Close enough that its readings are the conditions in town.
Forecasts near Weldon Spring
- Cottleville, MO3 mi
- Dardenne Prairie, MO4 mi
- Chesterfield, MO5 mi
- St. Peters, MO6 mi
- O'Fallon, MO6 mi
- Clarkson Valley, MO7 mi
- Lake St. Louis, MO9 mi
- Ellisville, MO9 mi
Elsewhere in Missouri
Kansas CitySt. LouisSpringfieldColumbiaIndependenceLee's SummitAll Missouri forecasts →

