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Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
81°F
27°C
| Humidity | 77% |
| Wind Speed | S 6 mph |
| Barometer | 29.94 in (1013.2 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 86°F (30°C) |
| Last update | 15 Jul 7:54 pm CDT |
Extended Forecast for
Niantic IL
Tonight
Low: 71 °F
Isolated
T-storms then
Partly CloudyWednesday
High: 90 °F
Mostly Sunny
then Chance
T-stormsWednesday Night
Low: 71 °F
Chance
T-stormsThursday
High: 82 °F
Chance
T-stormsThursday Night
Low: 65 °F
Chance
T-stormsFriday
High: 80 °F
Partly Sunny
Friday Night
Low: 69 °F
Mostly Cloudy
then Chance
T-stormsSaturday
High: 86 °F
Chance
T-stormsSaturday Night
Low: 72 °F
Chance
T-storms
Detailed Forecast
Tonight
Isolated showers and thunderstorms before 10pm. Partly cloudy, with a low around 71. South wind 3 to 5 mph. Chance of precipitation is 20%.
Wednesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Heat index values as high as 100. Southwest wind 5 to 10 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South southwest wind around 7 mph.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. West northwest wind 7 to 10 mph, with gusts as high as 15 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 65. Northeast wind around 7 mph.
Friday
Partly sunny, with a high near 80. East northeast wind around 6 mph.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. South southeast wind 3 to 6 mph.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 89.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Niantic IL
39.85°N 89.17°W (Elev. 600 ft)
39.85°N 89.17°W (Elev. 600 ft)
5:56 pm CDT Jul 15, 2025
8pm CDT Jul 15, 2025-6pm CDT Jul 22, 2025
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Hourly Weather Forecast
