61356 Weather (Princeton, IL)

Weather forecast for: Princeton IL

Last Update: 1:26 am CDT Sep 20, 2026

Overnight: Occasional showers and thunderstorms. Some of the storms could produce heavy rainfall. Patchy fog. Low around 66. Southeast wind around 5 mph becoming north. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Sunday: Showers and possibly a thunderstorm before 1pm, then a chance of showers. Patchy fog before 9am. High near 71. Northeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday Night: A 30 percent chance of showers, mainly after 3am. Mostly cloudy, with a low around 58. Northeast wind around 15 mph, with gusts as high as 25 mph.

Monday: A 30 percent chance of showers, mainly between 1pm and 4pm. Mostly cloudy, with a high near 65. Northeast wind around 15 mph, with gusts as high as 25 mph.

Monday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 54.

Tuesday: Partly sunny, with a high near 63.

Tuesday Night: Partly cloudy, with a low around 50.

Wednesday: Mostly sunny, with a high near 66.

Wednesday Night: Partly cloudy, with a low around 50.

Thursday: Mostly sunny, with a high near 67.

Thursday Night: Mostly cloudy, with a low around 52.

Friday: Partly sunny, with a high near 70.

Friday Night: Partly cloudy, with a low around 50.

Saturday: Mostly sunny, with a high near 72.