Live National Weather Service alerts, NEXRAD weather radar, USGS river and stream gauges, Storm Prediction Center convective outlooks, Local Storm Reports, 5-day forecast, air quality, and severe-weather notifications for Grant County, WI (FIPS 55043) in Wisconsin. Free, no login, no ads.
Grant County, WI is one of the counties of Wisconsin covered by BloomWX. Grant County, WI has a population of approximately 51,842 (2022 estimate, US Census Bureau). The county covers 1,146.9 square miles of land area. The county seat is Lancaster.
Platteville, Lancaster, Boscobel, Fennimore, Cuba City.
Grant County, WI is served by the National Weather Service ARX forecast office for warnings, watches, advisories, and decision-support services. The same office produces the Hazardous Weather Outlook, Area Forecast Discussion, and DSS briefing packets you'll see on the BloomWX dashboard for this county.
BloomWX also covers the surrounding counties: Richland County, WI, Iowa County, WI, Crawford County, WI, Dubuque County, IA, Clayton County, IA, Jo Daviess County, IL, Lafayette County, WI.
BloomWX is a free weather operations dashboard for SKYWARN storm spotters, emergency management volunteers, ham radio nets, and anyone in Grant County, WI who needs the official NWS data without the consumer-app cruft. Data is pulled directly from weather.gov and refreshes every 60 seconds. Sources: National Weather Service, Storm Prediction Center, USGS Water Data, NOAA Space Weather Prediction Center, Open-Meteo (Air Quality), and the Citizen Weather Observer Program.
Read the BloomWX learn library for beginner-friendly explainers on every dashboard surface, including SPC convective outlooks (TSTM/MRGL/SLGT/ENH/MDT/HIGH), NEXRAD radar, USGS flood gauges, and WPC surface analysis charts. See all Wisconsin county weather dashboards on BloomWX.