Monday
Mostly sunny
High:
76°F
Mostly sunny, with a high near 76. Calm wind.
Decatur, IL Weather - Extended Forecast
Monday Night
Partly cloudy
Overnight low:
50°F
Partly cloudy, with a low around 50. Calm wind.
Tuesday
Partly sunny
High:
75°F
Partly sunny, with a high near 75. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Mostly cloudy
Overnight low:
52°F
Mostly cloudy, with a low around 52.
Wednesday
Mostly sunny
High:
78°F
Wednesday Night
Mostly clear
Overnight low:
54°F
Thursday
Sunny
High:
80°F
Thursday Night
Mostly clear
Overnight low:
55°F
Friday
Mostly sunny
High:
80°F