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DeKalb, Illinois Weather

DeKalb, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery for DeKalb, DeKalb 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

Flight conditions near DeKalb — sourced from the FAA Aviation Weather Center. Nearest reporting station: locating…

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🌿 Air Quality
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NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for DeKalb 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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About DeKalb, Illinois

DeKalb unfolds across a landscape shaped by the slow, persistent work of glaciers, its terrain a broad, subtle swell of farmland stretching towards horizons that seem to hold the entire sky. It lies 22.7 miles west of St. Charles, IL (from St. Charles, IL: bearing 273°T), and is situated 5.2 miles south-west of Sycamore. The rich, dark loam, a testament to millennia of prairie grasses, now yields its bounty to the determined plow, its furrows catching the low, golden light of late afternoon. The air here, particularly as summer softens into autumn, carries the clean scent of turned earth and distant cornfields, a fragrance that speaks of abundance and the quiet turning of seasons. Even the scattered stands of trees, often oaks with their gnarled, patient limbs, seem to understand the expansive spirit of this place, their shadows long and deliberate against the fields. This is a place where the hum of agricultural machinery is as much a part of the soundscape as the distant rumble of trains, a constant reminder of the fertile ground that has sustained DeKalb for generations. Its history is intertwined with the growth of the Midwest, a story of pioneers and farmers who saw potential in these open plains, and later, the steady development of educational institutions that brought a different kind of vibrancy. The presence of Northern Illinois University imbues DeKalb with a youthful energy, a counterpoint to the enduring agricultural roots, and its campus buildings, often brick and solid, offer a sense of permanence against the ever-shifting sky. The town itself, a nexus of commerce and community, reflects this blend, its streets lined with businesses that serve both the agricultural heartland and the needs of a modern university town.

LocationDeKalb, DeKalb County, Illinois
Coordinates41.929474°N, 88.750365°W
TimezoneCentral Time (America/Chicago)
ZIP Code(s)60115
Area Code312, 773
Page generatedJune 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service