65559 Weather (St. James, MO)

Weather forecast for: Saint James MO

Last Update: 4:33 am CDT Sep 12, 2026

Today: Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 90. Heat index values as high as 95. South wind around 6 mph becoming northwest in the afternoon.

Tonight: A slight chance of showers before 3am, then a slight chance of showers after 4am. Partly cloudy, with a low around 66. Light and variable wind. Chance of precipitation is 20%.

Sunday: A chance of showers before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 87. Heat index values as high as 94. Calm wind becoming northwest 5 to 7 mph in the morning. Chance of precipitation is 50%.

Sunday Night: A chance of showers between 7pm and 1am. Partly cloudy, with a low around 63. East wind around 7 mph. Chance of precipitation is 30%.

Monday: Mostly sunny, with a high near 90. East wind 8 to 11 mph.

Monday Night: Mostly clear, with a low around 70.

Tuesday: Sunny and hot, with a high near 94.

Tuesday Night: Mostly clear, with a low around 70.

Wednesday: Sunny and hot, with a high near 94.

Wednesday Night: Mostly clear, with a low around 68.

Thursday: A chance of showers. Mostly sunny, with a high near 88.

Thursday Night: A chance of showers. Partly cloudy, with a low around 64.

Friday: A chance of showers. Mostly sunny, with a high near 83.