


NWS Forecast for: Marathon WI Issued by: National Weather Service Green Bay, WI Last Update: 5:56 pm CDT Jun 18, 2025 | |
Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Patchy fog after 1am. Otherwise, cloudy, with a low around 57. West wind around 5 mph becoming light and variable. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Juneteenth: A 20 percent chance of showers and thunderstorms after 3pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. West wind 5 to 11 mph, with gusts as high as 18 mph. Thursday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60. South southwest wind 5 to 7 mph. Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. South wind 7 to 13 mph, with gusts as high as 20 mph. Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South wind 10 to 13 mph, with gusts as high as 23 mph. Saturday: A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 89. Chance of precipitation is 10%. Saturday Night: Mostly clear, with a low around 75. Sunday: Sunny and hot, with a high near 90. Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 74. Monday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 85. Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 70%. Tuesday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 74. Chance of precipitation is 70%. Tuesday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 57. Chance of precipitation is 70%. Wednesday: Showers and possibly a thunderstorm. High near 68. Chance of precipitation is 80%. | |
Marathon WI 44.98°N 89.89°W (Elev. 1332 ft) | |
Visit your local NWS office at: https://www.weather.gov/grb |