53809 Weather (Fennimore, WI)

Weather forecast for: Fennimore WI

Last Update: 1:26 am CDT Sep 9, 2026

Overnight: Showers and possibly a thunderstorm. Patchy fog after 5am. Steady temperature around 71. Southwest wind around 7 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday: Showers likely, mainly before 7am. Areas of fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 81. West wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night: Mostly clear, with a low around 59. West wind around 6 mph becoming calm after midnight.

Thursday: Sunny, with a high near 77. Calm wind becoming northwest around 6 mph in the afternoon.

Thursday Night: Clear, with a low around 56. Calm wind becoming south around 5 mph after midnight.

Friday: Sunny, with a high near 78. South wind 6 to 13 mph.

Friday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. South wind 9 to 13 mph, with gusts as high as 22 mph.

Saturday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 78. Southwest wind 8 to 10 mph becoming northwest in the afternoon.

Saturday Night: Partly cloudy, with a low around 56. Light and variable wind.

Sunday: A 30 percent chance of showers. Partly sunny, with a high near 75. East wind 3 to 8 mph.

Sunday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 62. East wind 8 to 13 mph, with gusts as high as 21 mph.

Monday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Breezy, with a south wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Breezy, with a south wind 13 to 18 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%.

Tuesday: A 20 percent chance of showers. Mostly sunny, with a high near 73. West wind 8 to 11 mph.