Mount Vernon, Illinois Weather
Mount Vernon, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, soil and crop conditions for Mount Vernon, Jefferson County.
Full aviation weather for Mount Vernon is published on the Mount Vernon Outland Airport (KMVN) page, 4 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 Mount Vernon 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 Mount Vernon: Centralia Municipal Airport (KENL) 27 km · Benton Municipal Airport (KH96) 35 km · Salem–Leckrone Airport (KSLO) 37 km · Fairfield Municipal Airport (KFWC) 43 km · Pinckneyville Du Quoin Airport (KPJY) 55 km
Conditions reported at KMVN describe the airfield itself. Weather 4 km away can differ, particularly in terrain or near the coast. For conditions at Mount Vernon specifically, see the current conditions and forecast above.
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 | September 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, 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 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. 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.
