Weather forecast for: Tomball TX
Last Update: 4:21 pm CDT Oct 30, 2026
This Afternoon: Showers likely and possibly a thunderstorm. Cloudy, with a high near 79. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight: Showers and thunderstorms likely before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 66. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 81. East wind around 5 mph.
Saturday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm.
Sunday: Partly sunny, with a high near 84. Calm wind becoming east around 5 mph.
Sunday Night: Mostly cloudy, with a low around 68.
Monday: Partly sunny, with a high near 84.
Monday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 68.
Tuesday: Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 80%.
Tuesday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 56.
Wednesday: Sunny, with a high near 74.
Wednesday Night: Mostly clear, with a low around 54.
Thursday: Sunny, with a high near 75.
Thursday Night: Mostly clear, with a low around 53.
Friday: Sunny, with a high near 76.