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Lemont, Illinois Weather

Lemont, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery for Lemont, Cook County.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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✈️ Aviation Weather

Full aviation weather for Lemont is published on the Lewis University Airport (KLOT) page, 11 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 Lemont 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 Lemont: Bolingbrook's Clow International Airport (K1C5) 11 km · Joliet Regional Airport (KJOT) 23 km · Dupage Airport (KDPA) 33 km · Aurora Municipal Airport (KARR) 41 km · Morris Municipal Airport James R. Washburn field (KC09) 44 km

Conditions reported at KLOT describe the airfield itself. Weather 11 km away can differ, particularly in terrain or near the coast. For conditions at Lemont specifically, see the current conditions and forecast above.

🌿 Air Quality
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About Lemont, Illinois

Lemont unfolds along the Illinois River valley, its terrain sculpted by glacial activity into rolling hills that cradle pockets of dense woodland and open fields. It lies 3.8 miles east-south-east of Bolingbrook, IL (from Bolingbrook, IL: bearing 117°T), and is situated 8.2 miles west-north-west of Orland Park. The air, especially in the late afternoon, carries a damp, earthy scent, a reminder of the fertile soil that underpins the region. The Des Plaines River, a ribbon of silver, winds its way through the landscape, its banks often fringed with willows and cottonwoods, their leaves rustling like whispered secrets in the breeze. The character of Lemont is one of quiet resilience, a place where the natural world still holds sway, even as human endeavor marks its presence. For generations, Lemont has been shaped by its proximity to vital waterways and the resources they offered. Its history is interwoven with the development of the Illinois and Michigan Canal, a crucial artery for trade and transportation that brought prosperity and a diverse population to the area. Limestone quarrying was once a dominant force, leaving behind a legacy of sturdy structures and a distinctive geological character that still defines parts of Lemont. Today, while remnants of its industrial past remain, the local economy is more varied, embracing services and small businesses that cater to the needs of its residents, many of whom find solace and recreation in the nearby forest preserves and along the riverfront.

NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for Lemont and surroundings — RainViewer.

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🛰️ 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
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LocationLemont, Cook County, Illinois
Coordinates41.673642°N, 88.001726°W
TimezoneCentral Time (America/Chicago)
ZIP Code(s)60439
Area Code708
Page generatedSeptember 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service

About This Lemont, Illinois Weather Page

This page provides live weather conditions and forecasts for Lemont, 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 Lemont includes coordinates 41.673642°N, 88.001726°W, situated in Cook County. ZIP code 60439. Telephone area code: 708. 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.