Dupo, Illinois Weather
Dupo, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, soil and crop conditions for Dupo, St. Clair County.
Flight conditions near Dupo. Data source: locating…
Soil conditions, frost risk and crop weather for Dupo.
About Dupo, Illinois
Dupo sits where the Mississippi River's vast breath begins to shape the land, a place where flat expanses of rich farmland stretch towards horizons often softened by the humid haze of the Midwest. It lies 6.0 miles east-north-east of Oakville, MO (from Oakville, MO: bearing 58°T), and is situated 7.7 miles south of St. Louis. The air here carries the earthy scent of turned soil and the distant, metallic tang of industry, a scent that mingles with the sweet perfume of ripening crops in the summer. Along the western edge, the mighty Mississippi, a ribbon of ceaseless movement, carves its own destiny, its presence a constant hum beneath the quiet unfolding of daily life. The sky above Dupo is a grand canvas, frequently painted with the dramatic strokes of thunderheads or the soft, lingering blush of a prairie sunset, a visual testament to the open, unhindered expanse of this terrain. The story of Dupo is deeply entwined with the fertile soil and the river's generous, and sometimes capricious, embrace. Once a landscape shaped by ancient waterways and the slow work of glaciers, this land became a breadbasket, its economy historically rooted in the bounty of agriculture, with corn and soybeans standing sentinel in the endless fields. The railroad, a vital artery of commerce, also played a significant role in Dupo's development, connecting its agricultural output to wider markets. Today, while farming remains a cornerstone, the proximity to the St. Louis metropolitan area brings a different pulse, a blend of rural tranquility and the subtle hum of a broader economic network, with transportation and logistics becoming increasingly important threads in the fabric of Dupo's present.
Live animated radar for Dupo 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 | Dupo, St. Clair County, Illinois |
| Coordinates | 38.516163°N, 90.21039°W |
| Timezone | Central Time (America/Chicago) |
| ZIP Code(s) | 62239, 62240 |
| Area Code | 217 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Dupo, Illinois Weather Page
This page provides live weather conditions and forecasts for Dupo, Illinois, 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 Dupo includes coordinates 38.516163°N, 90.210390°W, situated in St. Clair County. ZIP code 62239, 62240. Telephone area code: 217. 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.
