Weather forecast for: Harvard IL
Last Update: 7:36 am CDT Sep 4, 2026
Today: A 30 percent chance of showers and thunderstorms, mainly before 10am. Mostly sunny, with a high near 92. Heat index values as high as 104. East wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.
Tonight: A slight chance of showers and thunderstorms between 10pm and 4am. Partly cloudy, with a low around 69. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Saturday: Mostly sunny, with a high near 84. North northeast wind 5 to 10 mph.
Saturday Night: Mostly cloudy during the early evening, then becoming mostly clear, with a low around 64. Northeast wind 5 to 10 mph becoming light east northeast after midnight.
Sunday: Mostly sunny, with a high near 81. Calm wind becoming east around 5 mph in the morning. Winds could gust as high as 15 mph.
Sunday Night: Partly cloudy, with a low around 61.
Labor Day: Mostly sunny, with a high near 81.
Monday Night: Mostly cloudy, with a low around 63.
Tuesday: Partly sunny, with a high near 83.
Tuesday Night: A chance of showers after 1am. Mostly cloudy, with a low around 71.
Wednesday: Partly sunny, with a high near 86.
Wednesday Night: A chance of showers. Mostly cloudy, with a low around 66.
Thursday: Partly sunny, with a high near 80.