Mount Vernon, Illinois Weather
Mount Vernon, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, soil and crop conditions for Mount Vernon, Jefferson County.
Flight conditions near Mount Vernon. Data source: locating…
Soil conditions, frost risk and crop weather for Mount Vernon.
About Mount Vernon, Illinois
Mount Vernon, Illinois, unfurls across a landscape shaped by the gentle slopes and broad horizons of southern Illinois. It lies 57.7 miles east-south-east of O Fallon, IL (from O Fallon, IL: bearing 109°T), and is situated 7.1 miles east of Woodlawn. Here, the cultivated fields, a patchwork of emerald and gold depending on the season, stretch towards a sky that often feels immense, especially as the sun dips low, painting the clouds in hues of rose and lavender. The air itself carries a certain stillness, a quiet breath that hints at the fertile earth and the patient cultivation that defines this region. Interspersed with the farmland, stands of oak and maple trees, their branches reaching skyward, offer pockets of shade and a subtle, rustling counterpoint to the open expanse. The story of Mount Vernon is interwoven with the agricultural bounty of Jefferson County, a place where the fertile soil has long been the bedrock of its economy. For generations, the land has yielded its harvest, supporting families and shaping the character of the community. The presence of major roadways, arteries of commerce, underscores its role as a crossroads, a place where goods and people have moved for decades. Beyond the fields, the Rend Lake area, a jewel of recreational waters and natural beauty, offers a different kind of allure, drawing visitors for its boating, fishing, and the simple pleasure of being by the water's edge, a tranquil contrast to the industrious hum of the town.
Live animated radar for Mount Vernon 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 | Mount Vernon, Jefferson County, Illinois |
| Coordinates | 38.317272°N, 88.90312°W |
| Timezone | Central Time (America/Chicago) |
| ZIP Code(s) | 62864 |
| Area Code | 618 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Mount Vernon, Illinois Weather Page
This page provides live weather conditions and forecasts for Mount Vernon, 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 Mount Vernon includes coordinates 38.317272°N, 88.903120°W, situated in Jefferson County. ZIP code 62864. Telephone area code: 618. 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.
