Dupo, Illinois Weather
Dupo, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, soil and crop conditions for Dupo, St. Clair County.
Full aviation weather for Dupo is published on the St Louis Downtown Airport (KCPS) page, 8 km away. It carries the current METAR decoded into plain language — surface wind, visibility, cloud layers and ceiling, temperature and dewpoint, and altimeter setting — alongside the raw observation as transmitted. 6 airfields within reach of Dupo have their own pages, listed below.
The Terminal Aerodrome Forecast (TAF) is shown across its full validity period, with each change group broken out so you can see when conditions are expected to shift. Flight category is derived automatically — VFR, MVFR, IFR or LIFR — from reported ceiling and visibility, with runway details and field elevation alongside. Observations update roughly hourly and forecasts several times a day.
Other airports near Dupo: St. Louis Lambert International Airport (KSTL) 29 km · Creve Coeur Airport (K1H0) 35 km · Spirit of St Louis Airport (KSUS) 42 km · St Louis Regional Airport (KALN) 44 km · St Charles County Regional Airport/Smartt Field (KSET) 50 km
Conditions reported at KCPS describe the airfield itself. Weather 8 km away can differ, particularly in terrain or near the coast. For conditions at Dupo specifically, see the current conditions and forecast above.
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 | September 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, precipitation radar and NOAA GOES-16 satellite imagery. Aviation weather — live METAR observations and TAF forecasts — is published separately on the pages for the nearest reporting airports, linked from the aviation section above. 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. 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.
