| NWS Forecast for: Waterloo IL Issued by: National Weather Service Saint Louis, MO Last Update: 5:56 pm CST Nov 17, 2025 | |
Tonight: A chance of rain and thunderstorms before 2am, then a slight chance of rain and thunderstorms after 5am. Mostly cloudy, with a low around 48. Southeast wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. Tuesday: A slight chance of rain before 10am, then a slight chance of rain and thunderstorms between 10am and 1pm. Partly sunny, with a high near 73. South wind 6 to 9 mph becoming north in the afternoon. Chance of precipitation is 20%. Tuesday Night: Mostly cloudy, with a low around 47. North wind 3 to 5 mph. Wednesday: Mostly cloudy, with a high near 62. Light northwest wind. Wednesday Night: A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 48. Calm wind becoming southeast around 5 mph after midnight. Thursday: Rain and possibly a thunderstorm. High near 66. Chance of precipitation is 90%. Thursday Night: Rain and possibly a thunderstorm. Low around 54. Chance of precipitation is 80%. Friday: Rain likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 63. Chance of precipitation is 70%. Friday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 43. Saturday: Mostly sunny, with a high near 56. Saturday Night: Partly cloudy, with a low around 40. Sunday: Mostly sunny, with a high near 60. Sunday Night: A 20 percent chance of rain. Partly cloudy, with a low around 42. Monday: A 30 percent chance of rain. Partly sunny, with a high near 60. | |
| Waterloo IL 38.33°N 90.16°W (Elev. 600 ft) | |
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