Weather forecast for: Petersburg IL
Last Update: 11:21 am CST Nov 4, 2026
Today: Patchy drizzle, mainly after 4pm. Cloudy, with a high near 57. West southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Tonight: Patchy drizzle before 10pm. Mostly cloudy, with a low around 45. Southwest wind around 9 mph, with gusts as high as 18 mph.
Thursday: A 20 percent chance of rain after 3pm. Increasing clouds, with a high near 58. West wind 8 to 13 mph, with gusts as high as 21 mph.
Thursday Night: Mostly cloudy, with a low around 40. West northwest wind 6 to 8 mph becoming north after midnight. Winds could gust as high as 16 mph.
Friday: Mostly sunny, with a high near 51. North wind 7 to 11 mph, with gusts as high as 18 mph.
Friday Night: Partly cloudy, with a low around 32. North wind 5 to 7 mph becoming calm in the evening.
Saturday: Mostly sunny, with a high near 53. Calm wind becoming northwest around 5 mph.
Saturday Night: Mostly clear, with a low around 32.
Sunday: Sunny, with a high near 59.
Sunday Night: Clear, with a low around 33.
Monday: Sunny, with a high near 64.
Monday Night: Clear, with a low around 38.
Tuesday: Sunny, with a high near 66.
WeatherWorld.com
City of Petersburg, IL
