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Janesville, Wisconsin Weather

Janesville, Wisconsin — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery for Janesville, Rock 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 Janesville — 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 Janesville 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 Janesville, Wisconsin

Janesville unfolds across a landscape of gentle, rolling terrain, a place where the Rock River, a ribbon of cool, brown water, carves a patient path through fertile plains. It lies 12.1 miles north of Beloit, WI (from Beloit, WI: bearing 3°T), and is situated 7.4 miles south-south-west of Milton. The air here, especially in the hushed moments before dawn, carries the scent of damp earth and the distant, sweet perfume of ripening corn, a palpable reminder of the land's enduring generosity. Mature oaks, their branches reaching like ancient arms, punctuate the fields and line the residential streets, offering a dappled shade that softens the bright Wisconsin sun. In the early evening, the sky above Janesville often deepens into shades of bruised plum and soft rose, a fleeting artistry that mirrors the quiet resilience of the community. This was a place forged by ambition and hard work, a testament to the pioneering spirit that settled the rich Wisconsin soil. Janesville became known as the "Beloit Gateway," a hub connecting agricultural bounty to broader markets, its economy once buoyed by the robust manufacturing of farm machinery, a legacy still whispered in the industrial districts. The city's character is deeply intertwined with its agricultural roots, evident in the surrounding patchwork of farms and the enduring appreciation for the changing seasons. Though industries have shifted, a sense of grounded practicality persists, a quiet pride in craftsmanship and a neighborly spirit that still defines the everyday cadence of Janesville.

LocationJanesville, Rock County, Wisconsin
Coordinates42.682788°N, 89.018722°W
TimezoneCentral Time (America/Chicago)
ZIP Code(s)53545, 53546, 53547, 53548
Area Code715
Page generatedJune 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service