Lacon, Illinois Weather
Lacon, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, soil and crop conditions for Lacon, Marshall County.
Full aviation weather for Lacon is published on the Marshall County Airport (KC75) page, 2 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. 5 airfields within reach of Lacon 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 Lacon: Mount Hawley Auxiliary Airport (K3MY) 31 km · Illinois Valley Regional Airport Walter A Duncan Field (KVYS) 42 km · General Wayne A. Downing Peoria International Airport (KPIA) 47 km · Kewanee Municipal Airport (KEZI) 50 km
Conditions reported at KC75 describe the airfield itself. Weather 2 km away can differ, particularly in terrain or near the coast. For conditions at Lacon specifically, see the current conditions and forecast above.
Soil conditions, frost risk and crop weather for Lacon.
About Lacon, Illinois
Lacon rises from the Illinois River valley, a quiet confluence of fertile plains and flowing water. It lies 24.7 miles north-north-east of Peoria, IL (from Peoria, IL: bearing 22°T), and is situated 8.1 miles north-north-east of Chillicothe. The land here is a patient sculptor, its gentle swells and broad horizons shaped by ancient currents and millennia of wind. Fields of corn and soybeans, a vast, green and gold quilt, stretch to meet the sky, interrupted only by the occasional cluster of stately oaks or the ribbon of a country road. The air, especially in the soft light of late afternoon, carries the scent of damp earth and distant woodsmoke, a palpable stillness that settles over the landscape like a benediction. The river itself, a constant, murmuring presence, traces the edge of Lacon, its wide, brown expanse reflecting the ever-changing moods of the heavens. The history of Lacon is etched not in grand monuments, but in the enduring spirit of a place built on agriculture and the enduring pulse of the river. For generations, this land has yielded its bounty, a testament to the hard work of its people and the rich soil they cultivate. The Marshall County Courthouse, a dignified brick sentinel, stands as a quiet anchor in the heart of Lacon, a silent witness to the ebb and flow of community life. The economy here remains tied to the land, with farming and its related industries forming the backbone of daily existence, a rhythm dictated by the seasons and the steadfast generosity of nature. Visitors might find themselves drawn to the simple beauty of the riverfront, a place where the water whispers tales of steamboats long gone and the promise of new horizons.
Live animated radar for Lacon 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 | Lacon, Marshall County, Illinois |
| Coordinates | 41.024758°N, 89.411201°W |
| Timezone | Central Time (America/Chicago) |
| ZIP Code(s) | 61540 |
| Area Code | 815 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Lacon, Illinois Weather Page
This page provides live weather conditions and forecasts for Lacon, 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 Lacon includes coordinates 41.024758°N, 89.411201°W, situated in Marshall County. ZIP code 61540. Telephone area code: 815. 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.
