Tuesday
Sunny
High:
90°F
Sunny, with a high near 90. West southwest wind 11 to 14 mph, with gusts as high as 18 mph.
Decatur, IL Weather - Extended Forecast
Tuesday Night
Chance of thunderstorms
Overnight low:
66°F
A chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 66. West wind around 6 mph becoming light and variable. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely
High:
79°F
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 79. Northeast wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers likely
Overnight low:
59°F
Showers likely, mainly after 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Thursday
Showers likely
High:
75°F
Thursday Night
Chance of showers
Overnight low:
52°F
Friday
Partly sunny
High:
66°F
Friday Night
Partly cloudy
Overnight low:
39°F
Saturday
Mostly sunny
High:
59°F