St. Clair, Missouri Weather
St. Clair, Missouri — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, soil and crop conditions for St. Clair, Franklin County.
Flight conditions near St. Clair. Data source: locating…
Soil conditions, frost risk and crop weather for St. Clair.
About St. Clair, Missouri
St. Clair rests in a landscape where the Ozark foothills begin to soften, a place where the Meramec River, a ribbon of cool, flowing water, has patiently shaped the terrain over millennia. It lies 23.8 miles south-west of Wildwood, MO (from Wildwood, MO: bearing 226°T), and is situated 7.4 miles south-south-east of Union. Rolling hills, cloaked in a dense tapestry of oak and hickory, cradle the town, their slopes descending into fertile valleys. The air here, especially in the early morning, carries the damp, earthy scent of the forest floor, mingling with the fainter, sweeter perfume of wild honeysuckle that often spills over fences in the warmer months. The land itself feels ancient, a quiet witness to the passage of seasons, its geological bones hinting at a deeper, more rugged past beneath the verdant surface. The origins of St. Clair are tied to the fertile banks of the Meramec and the burgeoning railroad lines that once promised connection and commerce. Historically, agriculture and timber played significant roles in its economy, the rich soil yielding crops and the abundant forests providing sustenance and building materials. Today, while still possessing a strong connection to its rural roots, St. Clair has diversified, with small businesses and a growing residential base contributing to its character. The Meramec River remains a central, life-giving feature, offering opportunities for recreation and a constant reminder of the natural forces that have sculpted this corner of Franklin County.
Live animated radar for St. Clair and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | St. Clair, Franklin County, Missouri |
| Coordinates | 38.345329°N, 90.980974°W |
| Timezone | Central Time (America/Chicago) |
| ZIP Code(s) | 63077 |
| Area Code | 314 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This St. Clair, Missouri Weather Page
This page provides live weather conditions and forecasts for St. Clair, Missouri, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, real-time aviation weather (live METAR and TAF reports from the nearest reporting airport, with a modeled estimate shown when no station is in range), precipitation radar and NOAA GOES-16 satellite imagery. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for St. Clair includes coordinates 38.345329°N, 90.980974°W, situated in Franklin County. ZIP code 63077. Telephone area code: 314. Timezone: Central Time (America/Chicago).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. Aviation data is sourced from aviationweather.gov (NOAA), with a modeled estimate used where no nearby reporting station is available. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
