Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Overcast
58°F
14°C
| Humidity | 33% |
| Wind Speed | NW 17 G 32 mph |
| Barometer | 30.16 in (1021.4 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Last update | 19 Apr 4:54 pm CDT |
Extended Forecast for
4 Miles N Forsyth IL
Frost Advisory April 20, 01:00am until April 20, 08:00am
Tonight
Low: 33 °F
Mostly Clear
then FrostMonday
High: 60 °F
Frost then
SunnyMonday Night
Low: 47 °F
Mostly Clear
Tuesday
High: 77 °F
Sunny and
BreezyTuesday Night
Low: 59 °F
Chance
T-stormsWednesday
High: 78 °F
Mostly Sunny
Wednesday Night
Low: 57 °F
Mostly Clear
Thursday
High: 80 °F
Sunny and
BreezyThursday Night
Low: 61 °F
Breezy.
Chance
Showers then
Showers
Likely
Detailed Forecast
Tonight
Widespread frost, mainly between 1am and 5am. Otherwise, mostly clear, with a low around 33. Northwest wind 12 to 17 mph becoming north 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Monday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 60. Northeast wind around 6 mph becoming south in the afternoon.
Monday Night
Mostly clear, with a low around 47. South wind 8 to 13 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 77. Breezy, with a southwest wind 13 to 23 mph, with gusts as high as 30 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 59. Southwest wind 11 to 15 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 78. West southwest wind around 11 mph, with gusts as high as 16 mph.
Wednesday Night
Mostly clear, with a low around 57. South wind around 11 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 80. Breezy.
Thursday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 61. Breezy. Chance of precipitation is 70%.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
Friday Night
A chance of showers. Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Partly sunny, with a high near 68.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles N Forsyth IL
39.97°N 88.96°W (Elev. 679 ft)
39.97°N 88.96°W (Elev. 679 ft)
5:31 pm CDT Apr 19, 2026
5pm CDT Apr 19, 2026-6pm CDT Apr 26, 2026
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