Weather forecast for: Sandwich IL
Last Update: 3:36 am CDT Sep 20, 2026
Overnight: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Patchy fog. Low around 66. North northeast wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday: Showers and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then a chance of showers after 4pm. Some of the storms could produce heavy rainfall. Patchy fog before 10am. High near 70. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Sunday Night: A slight chance of showers before 7pm, then a chance of showers after midnight. Cloudy, with a low around 58. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday: A 30 percent chance of showers, mainly before 9am. Mostly cloudy, with a high near 65. East northeast wind around 15 mph, with gusts as high as 25 mph.
Monday Night: A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 54. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday: A 20 percent chance of showers before 1pm. 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 68.
Thursday Night: Mostly cloudy, with a low around 51.
Friday: Mostly sunny, with a high near 70.
Friday Night: Partly cloudy, with a low around 49.
Saturday: Mostly sunny, with a high near 71.