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Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Partly Cloudy
67°F
19°C
| Humidity | 87% |
| Wind Speed | NA |
| Barometer | 29.93 in |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 18 May 5:54 pm CDT |
Extended Forecast for
3 Miles WSW Forsyth IL
Tonight
Low: 68 °F
Chance
T-stormsTuesday
High: 81 °F
Breezy.
Chance
T-storms then
ShowersTuesday Night
Low: 54 °F
Chance
T-stormsWednesday
High: 67 °F
Partly Sunny
Wednesday Night
Low: 45 °F
Partly Cloudy
Thursday
High: 69 °F
Mostly Sunny
Thursday Night
Low: 52 °F
Mostly Cloudy
then Chance
ShowersFriday
High: 70 °F
Showers
LikelyFriday Night
Low: 57 °F
Chance
Showers
Detailed Forecast
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 4am. Cloudy, then gradually becoming partly cloudy, with a low around 68. South wind 16 to 18 mph, with gusts as high as 28 mph.
Tuesday
Showers and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 81. Breezy, with a south southwest wind 16 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Cloudy, then gradually becoming partly cloudy, with a low around 54. Northwest wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 67. North northeast wind 11 to 14 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 45. Northeast wind 11 to 15 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 69. East wind 13 to 15 mph, with gusts as high as 22 mph.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 52. East wind 13 to 15 mph, with gusts as high as 20 mph.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 57.
Saturday
Mostly cloudy, with a high near 77.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 59.
Sunday
Partly sunny, with a high near 80.
Sunday Night
Mostly cloudy, with a low around 62.
Memorial Day
A chance of showers. Partly sunny, with a high near 83.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles WSW Forsyth IL
39.89°N 89.02°W (Elev. 656 ft)
39.89°N 89.02°W (Elev. 656 ft)
3:06 pm CDT May 18, 2026
6pm CDT May 18, 2026-6pm CDT May 25, 2026
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