| NWS Forecast for: Decatur Airport IL Issued by: National Weather Service Lincoln, IL Last Update: 5:41 pm CDT Jul 12, 2025 | |
| Overnight: Partly cloudy, with a low around 70. West northwest wind 3 to 5 mph. Sunday: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Increasing clouds, with a high near 86. Calm wind becoming southwest around 6 mph in the afternoon. Sunday Night: A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 69. Light and variable wind. Monday: Mostly sunny, with a high near 89. Light and variable wind becoming south southeast around 6 mph in the morning. Monday Night: Partly cloudy, with a low around 72. South southeast wind 3 to 5 mph. Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind 6 to 9 mph. Tuesday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South southwest wind around 7 mph. Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 89. Chance of precipitation is 60%. Wednesday Night: A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. Thursday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 50%. Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Friday: Partly sunny, with a high near 86. Friday Night: Partly cloudy, with a low around 68. Saturday: Mostly sunny, with a high near 87. | |
| Decatur Airport IL 39.84°N 88.88°W (Elev. 650 ft) | |
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