Weather forecast for: Hattiesburg MS
Last Update: 2:16 am CDT Sep 20, 2026
Overnight: Clear, with a low around 73. Calm wind.
Sunday: Sunny and hot, with a high near 98. Heat index values as high as 103. Calm wind becoming north northwest around 5 mph.
Sunday Night: Mostly clear, with a low around 73. Calm wind.
Monday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Heat index values as high as 103. Calm wind becoming north around 5 mph in the afternoon.
Monday Night: Partly cloudy, with a low around 72. Calm wind.
Tuesday: Sunny, with a high near 96. Calm wind becoming north northeast around 5 mph in the afternoon.
Tuesday Night: Mostly clear, with a low around 73. Calm wind.
Wednesday: Sunny, with a high near 94. North wind 5 to 10 mph.
Wednesday Night: Mostly clear, with a low around 69. North northeast wind around 5 mph.
Thursday: Sunny, with a high near 91.
Thursday Night: Partly cloudy, with a low around 65.
Friday: Sunny, with a high near 89.
Friday Night: Partly cloudy, with a low around 66.
Saturday: Mostly sunny, with a high near 89.