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Swansea, Illinois Weather

Swansea, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery for Swansea, St. Clair 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 Swansea. Data source: locating…

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🌿 Air Quality
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About Swansea, Illinois

Swansea unfolds across gentle swells of land, a place where the broad, open skies of southern Illinois seem to press down with a benevolent weight. Fields of ripening corn and soybeans stretch towards horizons softened by the hazy breath of summer, their emerald and gold hues punctuated by the darker greens of scattered woodlands. The air here, especially in the late afternoon, carries a quiet hum, a blend of distant traffic, the rustle of leaves in oak and maple trees lining residential streets, and the faint, persistent chirping of unseen insects. Roads, some paved and smooth, others gravelly tracks that curve with the land, weave through this landscape, connecting clusters of homes with their neat lawns and the occasional weathered barn. The history of Swansea is deeply entwined with the fertile soil that defines its surroundings, a legacy of agriculture that still underpins its local economy. Originally settled by those drawn to the rich farmland, its character has evolved, absorbing the ebb and flow of regional development. While no single grand monument dominates the skyline, the enduring presence of family farms, some generations old, speaks to a continuity of purpose. The modest commercial districts, with their independent businesses, offer a glimpse into a community that values practicality and neighborly exchange, a spirit that persists even as modern conveniences arrive. Swansea, in its quiet way, embodies a patient resilience, a testament to the enduring connection between people and the land they cultivate.

NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for Swansea 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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LocationSwansea, St. Clair County, Illinois
Coordinates38.533939°N, 89.988994°W
TimezoneCentral Time (America/Chicago)
ZIP Code(s)62226
Area Code217
Page generatedJuly 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service

About This Swansea, Illinois Weather Page

This page provides live weather conditions and forecasts for Swansea, 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 Swansea includes coordinates 38.533939°N, 89.988994°W, situated in St. Clair County. ZIP code 62226. 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.