Weather forecast for: Westfield IL
Last Update: 5:06 pm CDT Sep 19, 2026
Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 70. Light and variable wind becoming south southwest 5 to 7 mph in the evening. Winds could gust as high as 16 mph.
Sunday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 88. West southwest wind 6 to 9 mph becoming north in the morning. Winds could gust as high as 17 mph.
Sunday Night: A 40 percent chance of showers and thunderstorms. Increasing clouds, with a low around 61. Northeast wind 8 to 13 mph, with gusts as high as 21 mph.
Monday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 74. East northeast wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 56. Northeast wind 9 to 13 mph, with gusts as high as 18 mph.
Tuesday: Mostly cloudy, with a high near 70. Northeast wind 11 to 13 mph, with gusts as high as 20 mph.
Tuesday Night: Mostly cloudy, with a low around 54. North northeast wind 7 to 14 mph, with gusts as high as 20 mph.
Wednesday: Partly sunny, with a high near 70.
Wednesday Night: Mostly cloudy, with a low around 54.
Thursday: Partly sunny, with a high near 73.
Thursday Night: Mostly cloudy, with a low around 55.
Friday: Partly sunny, with a high near 75.
Friday Night: Partly cloudy, with a low around 54.
Saturday: Mostly sunny, with a high near 77.