75657 Weather (Jefferson, TX)

Weather forecast for: Jefferson TX

Last Update: 6:30 am CDT Sep 16, 2026

Today: A chance of showers, with thunderstorms also possible after 4pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 106. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 30%.

Tonight: Mostly clear, with a low around 75. South wind around 5 mph becoming calm.

Thursday: Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming east around 5 mph in the afternoon.

Thursday Night: Mostly clear, with a low around 73. Southeast wind around 5 mph becoming calm in the evening.

Friday: Sunny and hot, with a high near 99. Calm wind becoming southeast around 5 mph.

Friday Night: Clear, with a low around 71.

Saturday: Sunny and hot, with a high near 99.

Saturday Night: Clear, with a low around 71.

Sunday: Sunny and hot, with a high near 99.

Sunday Night: Mostly clear, with a low around 72.

Monday: A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 98.

Monday Night: A 20 percent chance of showers. Partly cloudy, with a low around 71.

Tuesday: A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 96.