Washington Weather Forecast
- 77
- 101
Slight Chance Thunderstorms
- 76
- 97
Hot
- 76
- 96
Partly Sunny
- 75
- 96
Partly Sunny
- 76
- 95
Partly Sunny
- 73
- 94
Slight Chance Thunderstorms
- 73
- 94
Mostly Sunny
Today 12 Sep Washington
Sunny, hot. Near steady temperature in the mid 90s. South Winds 5 to 10 Mph. Heat index Values up to 108.
Tonight 12 Sep Washington
Partly cloudy. Lows in the mid 70s. South Winds 5 to 10 Mph. Heat index Values up to 107 early this evening.
Washington Temperature Statistics
September Temperature
Brenham, Brenham Municipal Airport (14.3 miles)
Lowest 5 September, 2026
74.3 °FAverage September
83.3 °FHighest 2 September, 2026
100 °F
Climate (2021–2026)
Brenham, Brenham Municipal Airport (14.3 miles)
Average Low 2021–2026
60.9 °FAverage 2021–2026
70.8 °FAverage High 2021–2026
81.7 °F