Weather forecast for: Mellen WI
Last Update: 9:18 am CDT Sep 4, 2026
Today: Mostly cloudy, with a high near 80. Calm wind becoming east around 5 mph in the afternoon.
Tonight: A 20 percent chance of showers between 3am and 4am. Patchy dense fog after 11pm. Otherwise, cloudy, with a low around 59. Northeast wind around 5 mph becoming calm.
Saturday: Areas of dense fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 79. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night: Partly cloudy, with a low around 59. Northeast wind around 5 mph becoming calm.
Sunday: Partly sunny, with a high near 81. South wind around 5 mph.
Sunday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 61. Calm wind becoming south around 5 mph after midnight.
Labor Day: A chance of showers. Mostly cloudy, with a high near 77. South wind around 5 mph, with gusts as high as 15 mph.
Monday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Cloudy, with a low around 60. South wind 5 to 10 mph, with gusts as high as 25 mph.
Tuesday: Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers. Mostly cloudy, with a high near 77. Breezy, with a south wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Wednesday: Mostly sunny, with a high near 79. Breezy, with a west wind 5 to 15 mph, with gusts as high as 30 mph.
Wednesday Night: A slight chance of showers. Partly cloudy, with a low around 55. West wind 5 to 10 mph, with gusts as high as 25 mph.
Thursday: A slight chance of showers. Mostly sunny, with a high near 72. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.