Enter your search query in the box below.

Grafton, Illinois Weather

Grafton, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, soil and crop conditions for Grafton, Jersey County.

🌡️ Current Conditions
Loading current conditions…
24-Hour Forecast
Loading hourly forecast…
Current Conditions Detail
Loading detail…
7-Day Forecast
Loading 7-day forecast…
✈️ Aviation Weather

Flight conditions near Grafton. Data source: locating…

Loading aviation data…
🚜 Agricultural Weather

Soil conditions, frost risk and crop weather for Grafton.

Loading agricultural data…

About Grafton, Illinois

Grafton rests where the Illinois River, a broad, muscular artery, begins its final, widening embrace of the Mississippi. It lies 13.1 miles north-north-east of Saint Charles, MO (from Saint Charles, MO: bearing 12°T), and is situated 4.0 miles west-north-west of Elsah. The bluffs here rise with a quiet, persistent dignity, their forested slopes a deep, shadowed green that softens in the haze of summer and sharpens to a stark, skeletal beauty in winter. The air, especially when the wind blows off the water, carries a damp, earthy scent, a mingling of river silt and the rich, dark soil that clings to the steep inclines. Sunlight, when it breaks through the often-overcast skies, casts a pale, diffused glow that seems to caress the weathered facades of the buildings clustered along the river's edge, lending them an almost spectral quality. This is a place shaped by the river's moods and the enduring spirit of those who have learned to live with its powerful currents. Once a hub for steamboat traffic and the logging industry, Grafton’s economy now finds its pulse in tourism, drawing visitors to its scenic vistas and the promise of a simpler pace. The old general stores, their wooden floors worn smooth by countless footsteps, still stand as silent witnesses to generations of commerce, while the marina bustles with leisure craft, a modern counterpoint to the region's historical reliance on waterborne transport. The very character of Grafton seems to be etched by the slow erosion of time and the persistent caress of the river, a testament to resilience and the enduring allure of a life lived in harmony with nature's grand designs.

NWS Extended Forecast
Loading NWS forecast…
📡 Precipitation Radar

Live animated radar for Grafton and surroundings — RainViewer.

Loading radar…
🛰️ 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
Calculating…
LocationGrafton, Jersey County, Illinois
Coordinates38.970048°N, 90.431505°W
TimezoneCentral Time (America/Chicago)
ZIP Code(s)62037
Area Code309
Page generatedJuly 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service

About This Grafton, Illinois Weather Page

This page provides live weather conditions and forecasts for Grafton, 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 Grafton includes coordinates 38.970048°N, 90.431505°W, situated in Jersey County. ZIP code 62037. Telephone area code: 309. 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.