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St. Mary, Missouri Weather

St. Mary, Missouri — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, soil and crop conditions for St. Mary, Ste. Genevieve County.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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✈️ Aviation Weather

Flight conditions near St. Mary. Data source: locating…

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🚜 Agricultural Weather

Soil conditions, frost risk and crop weather for St. Mary.

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About St. Mary, Missouri

St. Mary lies in the rolling hills of southeastern Missouri, a place where the land itself seems to sigh with the passage of seasons. It lies 44.3 miles south of Belleville, IL (from Belleville, IL: bearing 178°T), and is situated 7.3 miles west-south-west of Chester. The landscape here is a gentle, undulating embrace of fertile bottomlands and softly rounded bluffs, carved by the patient work of creeks and the broader Mississippi River not far to the east. Fields of corn and soybeans stretch across the terrain, their emerald and gold hues shifting with the sun's arc, while patches of dense woodland, primarily oak and hickory, punctuate the horizon with their deep, verdant stillness. The air, especially in the late afternoon, carries a sweet, earthy scent, a mixture of ripening crops and the damp, cool breath of the shadowed woods. The history of St. Mary is deeply entwined with the early French and Spanish settlers who were drawn to the rich soil and the strategic position along the Mississippi River, a vital artery of commerce and exploration. This heritage is evident in the enduring agricultural character of the region, with generations of families cultivating the land and a quiet resilience defining the local economy. While not a bustling metropolis, St. Mary possesses a distinct cultural character, a blend of pioneer grit and enduring faith, with the historic St. Mary's Catholic Church standing as a silent, stoic sentinel over the community, its spire a gentle finger pointing towards the vast Missouri sky. The rhythm of life in St. Mary is unhurried, a steady pulse set by the sun and the seasons, where the echoes of a rich past still resonate in the quiet streets and the welcoming smiles of its people.

NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for St. Mary and surroundings — RainViewer.

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🛰️ Satellite Imagery

NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.

NOAA GOES-16 CONUS GEOCOLOR satellite animated loop
🛰️ GEOCOLOR loop 🌡️ Infrared (IR) 🌀 NHC Hurricane Satellite 🔗 NOAA Full Viewer

Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload

🌙 Astronomy
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LocationSt. Mary, Ste. Genevieve County, Missouri
Coordinates37.878942°N, 89.949277°W
TimezoneCentral Time (America/Chicago)
ZIP Code(s)63673
Area Code816
Page generatedJuly 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service

About This St. Mary, Missouri Weather Page

This page provides live weather conditions and forecasts for St. Mary, 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. Mary includes coordinates 37.878942°N, 89.949277°W, situated in Ste. Genevieve County. ZIP code 63673. Telephone area code: 816. 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.