Illiopolis, Illinois Weather
Illiopolis, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, soil and crop conditions for Illiopolis, Sangamon County.
Flight conditions near Illiopolis. Data source: locating…
Soil conditions, frost risk and crop weather for Illiopolis.
About Illiopolis, Illinois
Illiopolis rests on the gently rolling prairie lands of central Illinois, a place where the horizon stretches wide and the sky feels immense. It lies 15.3 miles west of Decatur, IL (from Decatur, IL: bearing 274°T), and is situated 8.4 miles west of Harristown. The fields, a patchwork quilt of green and gold depending on the season, sweep away from the modest cluster of buildings that form the heart of Illiopolis, their surfaces catching the sun's slow descent and painting the air with a soft, amber glow. The streets are quiet, lined with sturdy, unassuming homes and the occasional mature oak, their branches reaching out like ancient, gnarled fingers against the vast expanse of the heavens. A palpable sense of stillness pervades the air, broken only by the distant hum of agricultural machinery or the chirping of unseen birds in the hedgerows. The history of Illiopolis is deeply entwined with the fertile soil that surrounds it, a legacy built on the perseverance of those who first tilled these lands. Its economy has long been anchored by agriculture, the bounty of corn and soybeans a testament to the region's enduring connection to the earth. Over the years, the needs of the farming community have shaped the character of Illiopolis, fostering a spirit of self-reliance and a quiet interdependence among its residents. While not marked by grand monuments, the true landmarks here are the weathered barns, the silos that punctuate the skyline, and the enduring sense of place that has been cultivated over generations, a subtle testament to lives lived in harmony with the open prairie.
Live animated radar for Illiopolis 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 | Illiopolis, Sangamon County, Illinois |
| Coordinates | 39.853654°N, 89.242029°W |
| Timezone | Central Time (America/Chicago) |
| ZIP Code(s) | 62539 |
| Area Code | 217 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Illiopolis, Illinois Weather Page
This page provides live weather conditions and forecasts for Illiopolis, 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 Illiopolis includes coordinates 39.853654°N, 89.242029°W, situated in Sangamon County. ZIP code 62539. 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.
