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Mattoon, Illinois Weather

Mattoon, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery for Mattoon, Coles 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 Mattoon is published on the Coles County Memorial Airport (KMTO) page, 8 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 Mattoon 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 Mattoon: Tuscola Airport (KK96) 34 km · Casey Municipal Airport (K1H8) 38 km · Effingham County Memorial Airport (K1H2) 48 km · Decatur Airport (KDEC) 58 km

Conditions reported at KMTO describe the airfield itself. Weather 8 km away can differ, particularly in terrain or near the coast. For conditions at Mattoon specifically, see the current conditions and forecast above.

🌿 Air Quality
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About Mattoon, Illinois

Mattoon unfolds across the flat expanse of central Illinois, a place where the horizon feels like a constant, unwavering companion. It lies 39.6 miles south-east of Decatur, IL (from Decatur, IL: bearing 128°T), and is situated 10.5 miles west of Charleston. The land here is predominantly agricultural, vast fields of corn and soybeans stretching in every direction, their green or golden hues shifting with the seasons and the angle of the sun. The sky, in turn, is immense, an unbroken dome that can hold the fierce drama of a summer thunderstorm or the soft, diffused light of a winter afternoon. A scattering of mature trees, often lining old property lines or marking forgotten homesteads, provides the only significant vertical interruption to the otherwise level terrain. The air, especially on a warm evening, carries the faint, sweet scent of mown hay and damp earth, a pervasive perfume of the prairie. The history of Mattoon is deeply entwined with the expansion of railroads across the American heartland, a pivotal stop that spurred its growth from a small settlement into a bustling hub. This legacy is still palpable, though the clang of steam engines has long since faded, replaced by the hum of modern industry. The local economy, while still rooted in agriculture, has diversified, with manufacturing and service sectors playing increasingly important roles. The iconic Twin Elms, a pair of ancient trees that once stood sentinel near the original town site, are a faded echo of a time when the landscape itself held a more prominent, almost mythological, significance for the people of Mattoon. Today, the town carries a quiet competence, a reflection of generations who have worked this fertile ground and navigated its evolving fortunes.

NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for Mattoon 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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LocationMattoon, Coles County, Illinois
Coordinates39.48309°N, 88.372826°W
TimezoneCentral Time (America/Chicago)
ZIP Code(s)61938
Area Code309
Page generatedSeptember 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service

About This Mattoon, Illinois Weather Page

This page provides live weather conditions and forecasts for Mattoon, 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 Mattoon includes coordinates 39.483090°N, 88.372826°W, situated in Coles County. ZIP code 61938. 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. 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.