Weather forecast for: Portland MO
Last Update: 12:11 pm CDT Oct 11, 2026
This Afternoon: Sunny, with a high near 90. Southwest wind around 6 mph.
Tonight: Partly cloudy, with a low around 66. Calm wind becoming southwest around 5 mph after midnight.
Columbus Day: Sunny, with a high near 92. Southwest wind 5 to 11 mph, with gusts as high as 20 mph.
Monday Night: Mostly clear, with a low around 70. Southwest wind around 6 mph.
Tuesday: Sunny, with a high near 91. Southwest wind 5 to 7 mph.
Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
Wednesday: Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 90%.
Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.
Thursday: Showers and possibly a thunderstorm. High near 75. Chance of precipitation is 80%.
Thursday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 50.
Friday: Partly sunny, with a high near 66.
Friday Night: Partly cloudy, with a low around 40.
Saturday: Sunny, with a high near 61.