Weather forecast for: Waterloo WI
Last Update: 9:52 pm CDT Sep 4, 2026
Tonight: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 69. Northeast wind around 5 mph becoming calm.
Saturday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 81. Northeast wind 5 to 10 mph.
Saturday Night: Mostly clear, with a low around 60. Northeast wind around 5 mph becoming calm in the evening.
Sunday: Mostly sunny, with a high near 80. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night: Partly cloudy, with a low around 57. East wind around 5 mph becoming calm in the evening.
Labor Day: Mostly sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the morning.
Monday Night: Mostly cloudy, with a low around 61. Southeast wind around 5 mph.
Tuesday: A 20 percent chance of showers. Partly sunny, with a high near 84. South wind 5 to 10 mph.
Tuesday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Wednesday: Partly sunny, with a high near 85.
Wednesday Night: Partly cloudy, with a low around 61.
Thursday: Mostly sunny, with a high near 78.
Thursday Night: A 20 percent chance of showers. Partly cloudy, with a low around 56.
Friday: A 20 percent chance of showers. Partly sunny, with a high near 78.