Saturday
Mostly sunny
High:
80°F
Mostly sunny, with a high near 80. Light and variable wind becoming east 5 to 7 mph in the morning.
Decatur, IL Weather - Extended Forecast
Saturday Night
Mostly clear
Overnight low:
62°F
Mostly clear, with a low around 62. West northwest wind 3 to 5 mph.
Sunday
Sunny
High:
85°F
Sunny, with a high near 85. West northwest wind around 6 mph becoming north in the afternoon.
Sunday Night
Partly cloudy
Overnight low:
64°F
Partly cloudy, with a low around 64.
Monday
Partly sunny
High:
85°F
Monday Night
Chance of thunderstorms
Overnight low:
68°F
Tuesday
Chance of thunderstorms
High:
85°F
Tuesday Night
Showers likely
Overnight low:
62°F
Wednesday
Mostly sunny
High:
78°F