Cahokia, Illinois Weather
Cahokia, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery for Cahokia, St. Clair County.
Flight conditions near Cahokia. Data source: locating…
About Cahokia, Illinois
Cahokia lies in a landscape shaped by ancient waters and the persistent sweep of the prairie wind. It lies 3.9 miles south of Saint Louis, MO (from Saint Louis, MO: bearing 174°T), and is situated 3.9 miles south of St. Louis. Low-lying ground, sometimes prone to the Mississippi's embrace, gives way to gentle rises that would have offered vantage points to those who first walked this earth. The air here often carries the scent of damp earth and distant industrial hum, a subtle counterpoint to the vast, open sky that stretches overhead, especially potent in the pale, washed light of late afternoon. The terrain, a mosaic of fertile bottomlands and slightly elevated terraces, speaks of a place where water has always been a defining force, carving and depositing, shaping the very character of the land. This is a place with deep roots, where echoes of a vanished civilization linger in the very soil. Cahokia was once the heart of a vast Indigenous metropolis, a center of trade and ceremony that predates European arrival by centuries. Later, the fertile lands attracted settlers drawn to agriculture, and for a time, the rhythm of life here was dictated by the planting and harvesting of crops. Today, the local economy is a more complex affair, a blend of industry and the ongoing legacy of its historical significance, attracting visitors keen to explore the remnants of its remarkable past and understand the enduring connection between this land and its ancient inhabitants.
Live animated radar for Cahokia 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 | Cahokia, St. Clair County, Illinois |
| Coordinates | 38.570885°N, 90.190111°W |
| Timezone | Central Time (America/Chicago) |
| ZIP Code(s) | 62206 |
| Area Code | 217 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Cahokia, Illinois Weather Page
This page provides live weather conditions and forecasts for Cahokia, 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 Cahokia includes coordinates 38.570885°N, 90.190111°W, situated in St. Clair County. ZIP code 62206. 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.
