Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Light Rain Fog/Mist
43°F
6°C
| Humidity | 97% |
| Wind Speed | N 9 mph |
| Barometer | 30.14 in (1020.9 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 4.00 mi |
| Wind Chill | 38°F (3°C) |
| Last update | 4 Mar 12:54 am CST |
Extended Forecast for
4 Miles N Forsyth IL
Overnight

Low: 41 °F
Showers and
Patchy FogWednesday
High: 51 °F
Chance
Showers and
Patchy Fog
then ShowersWednesday Night

Low: 49 °F
Showers and
Patchy FogThursday
High: 61 °F
Showers
Likely then
Mostly CloudyThursday Night
Low: 52 °F
Mostly Cloudy
then Chance
T-stormsFriday

High: 76 °F
Rain Likely
and BreezyFriday Night
Low: 51 °F
Breezy.
Chance Rain
then RainSaturday
High: 61 °F
Chance Rain
then Mostly
SunnySaturday Night

Low: 36 °F
Mostly Clear
Detailed Forecast
Overnight
Showers and possibly a thunderstorm, mainly before 3am, then a chance of showers and thunderstorms after 3am. Patchy fog. Low around 41. East northeast wind around 9 mph, with gusts as high as 17 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Patchy fog before noon. High near 51. East wind 6 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers, then showers and possibly a thunderstorm after 9pm. Patchy fog. Low around 49. East wind 5 to 7 mph becoming south after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers likely before noon. Mostly cloudy, with a high near 61. South wind 6 to 11 mph becoming west in the morning. Winds could gust as high as 17 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of rain between midnight and 3am, then a chance of rain and thunderstorms after 3am. Mostly cloudy, with a low around 52. Southwest wind 5 to 11 mph becoming southeast in the evening. Winds could gust as high as 17 mph. Chance of precipitation is 50%.
Friday
Rain likely, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 76. Breezy, with a south wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of rain before midnight, then rain and possibly a thunderstorm between midnight and 3am, then rain after 3am. Low around 51. Breezy, with a south wind 16 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 40 percent chance of rain before noon. Partly sunny, with a high near 61.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 73.
Monday Night
A chance of rain. Mostly clear, with a low around 57.
Tuesday
Rain likely. Mostly cloudy, with a high near 74. Breezy.
Additional Forecasts and Information
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ABOUT 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)
12:26 am CST Mar 4, 2026
1am CST Mar 4, 2026-6pm CDT Mar 10, 2026



