Weather radio in Wisconsin

WWG90: NOAA Weather Radio, Janesville

162.425 MHz · 300 W · On the air

WWG90 broadcasts NOAA Weather Radio on 162.425 MHz (WX4 on most receivers) from Janesville, with the transmitter at Milton - Rock County, Wisconsin, at 300 W. The National Weather Service office in Milwaukee/Sullivan, WI programs it. It covers 7 counties in Illinois and Wisconsin.

The transmitter and its neighbors

WWG90 (the largest dot) and the transmitters within 100 miles, colored by their status now.

  • On the air
  • Degraded
  • Off the air

The transmitter

Call sign
WWG90
Frequency
162.425 MHz (WX4)
Power
300 W
Status
On the air
Station
Janesville
Transmitter site
Milton - Rock County
NWS office
Milwaukee/Sullivan, WI
Location
42.7739, -89.0056

Counties covered

Program a SAME receiver with the code of your county. Coverage is NWS’s note of the part of a county the signal reaches.

CountyStateSAME codeCoverage
BooneIllinois017007Whole county
StephensonIllinois017177Whole county
WinnebagoIllinois017201Whole county
DaneWisconsin055025Whole county
GreenWisconsin055045Whole county
RockWisconsin055105Whole county
WalworthWisconsin055127Whole county

Nearby transmitters

More

Weather radio in WisconsinEvery transmitterThe forecast hereAlerts in force in Wisconsin

Sources

Transmitters, status and county coverage from the National Weather Service’s NOAA Weather Radio county coverage listing (data). Public domain. Read October 2, 2026 at 1:38 AM UTC; held for an hour. Original at weather.gov. Report an outage to NWS at weather.gov/nwr.