Weather forecast for: Mount Vernon TX
Last Update: 6:30 am CDT Sep 9, 2026
Today: Sunny and hot, with a high near 99. Heat index values as high as 105. South wind around 5 mph.
Tonight: Mostly clear, with a low around 75. South wind around 5 mph.
Thursday: Sunny and hot, with a high near 98. Heat index values as high as 103. Southwest wind around 5 mph.
Thursday Night: Partly cloudy, with a low around 75. South wind around 5 mph.
Friday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny and hot, with a high near 97. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night: Mostly clear, with a low around 75.
Saturday: Sunny and hot, with a high near 98.
Saturday Night: Mostly clear, with a low around 75.
Sunday: Sunny and hot, with a high near 97.
Sunday Night: Mostly clear, with a low around 74.
Monday: Sunny and hot, with a high near 98.
Monday Night: Mostly clear, with a low around 75.
Tuesday: Sunny and hot, with a high near 97.