A heat advisory is in effect for inland portions of Southeast Texas today, September 13, 2026, from 11 AM to 6 PM due to very hot and humid conditions. High temperatures will range from 93 to 99 degrees Fahrenheit with heat indices between 108 and 110 degrees Fahrenheit. Safety precautions include using air conditioning, limiting strenuous outdoor activities during the afternoon, staying hydrated, and wearing lightweight, light-colored clothing. Affected areas include Houston, College Station, League City, Sugar Land, and surrounding communities.
High temperatures in the low 90s to upper 90s. Heat indices to reach advisory levels despite a chance for isolated to scattered showers along and south of I-10.
Tonight's outlook shows warm and humid conditions with low temperatures ranging from 74 to 80 degrees Fahrenheit inland and 77 to 83 degrees Fahrenheit on the beaches. Isolated showers and thunderstorms are expected to wind down around sunset alongside light southerly winds.
Daily chances for showers and thunderstorms continues. Highs will be mainly in the 90s with lows in the 70s/lower 80s. Heat indices reach the triple digits.
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