Weather forecast for: Alton MO
Last Update: 5:11 pm CDT Oct 30, 2026
Tonight: Increasing clouds, with a low around 56. Light east wind.
Saturday: A chance of sprinkles before 10am. Cloudy, with a high near 74. Northeast wind 3 to 6 mph.
Saturday Night: A chance of showers or sprinkles before 9pm, then showers likely, mainly after 4am. Mostly cloudy, with a low around 55. Southeast wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday: Showers likely, mainly before 7am. Mostly cloudy, with a high near 70. Light southeast wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night: Cloudy, with a low around 55. Southeast wind 3 to 5 mph.
Monday: A 30 percent chance of showers. Cloudy, with a high near 70.
Monday Night: A 50 percent chance of showers. Cloudy, with a low around 59.
Tuesday: Showers. Mostly cloudy, with a high near 70.
Tuesday Night: A chance of showers. Mostly cloudy, with a low around 50.
Wednesday: A chance of showers before 1pm. Partly sunny, with a high near 68.
Wednesday Night: Mostly cloudy, with a low around 47.
Thursday: Partly sunny, with a high near 67.
Thursday Night: Partly cloudy, with a low around 43.
Friday: Mostly sunny, with a high near 67.