Weldon Spring, MO Monthly Weather

Saint Charles County5:22 PM CDT38.71°N, 90.69°WElevation 541 ft
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October 2026

Sun
Mon
Tue
Wed
Thu
Fri
Sat
190°/67°0.21 inAvg 75°/55°
274°/57°Avg 75°/54°
373°/50°Avg 75°/54°
482°/50°Avg 74°/54°
576°/51°Avg 74°/53°
678°/50°Avg 74°/53°
789°/59°Avg 73°/53°
885°/53°Avg 73°/52°
988°/57°Avg 72°/52°
1079°/56°Avg 72°/51°
1187°/53°Avg 71°/51°
1292°/69°Avg 71°/51°
1393°/71°Avg 71°/50°
1479°/69°0.88 inAvg 70°/50°
1582°/56°0.59 inAvg 70°/50°
1659°/49°0.08 inAvg 69°/49°
1759°/41°Avg 69°/49°
1866°/42°Avg 68°/48°
1970°/43°Avg 68°/48°
20 Sunny 72°/47°Avg 68°/48°
21 Sunny 74°/48°Avg 67°/47°
22 Sunny 75°/47°Avg 67°/47°
23 Sunny 74°/48°Avg 66°/46°
24 Mostly Sunny 75°/52°Avg 66°/46°
25 Partly Sunny 77°/50°Avg 65°/46°
26 Partly Sunny 73°/47°Avg 65°/45°
27 Cloudy 67°/57°Avg 64°/45°
28 Cloudy 62°/53°Avg 64°/44°
29 Cloudy 60°/50°Avg 64°/44°
30Avg 63°/44°
31Avg 63°/43°
Average high79° (normal 72°)
Average low55° (normal 51°)
Warmest / coldest93° / 41°
Precipitation1.76 in (normal 1.83 in to date)
Record high today88° (2003)
Record low today26° (1930)

Observed: St Louis Area, 28 km away, records since 1874. Normals 1991–2020. Climate data from NOAA's Regional Climate Centers (ACIS); recent days are preliminary. Days ahead: the forecast.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.