Last 7 days
Today
29° / 25° High / Low (°C)
95% Humidity
75% Rain probability
Thunderstorm Condition
~1h Rain duration
What this means
In Houston on 21 Jun 2026, rain is expected: 75% chance, up to 0.4 mm forecast (source: Open-Meteo).
A thunderstorm is expected today for around 1 hour — 75% probability, up to 0.4mm forecast. An umbrella is the right call.
Rain season
Houston is one of the wettest US cities, averaging 1,270mm annually, with rain possible in every month. Summer produces powerful afternoon convective thunderstorms, while Gulf tropical systems August–October can bring catastrophic multi-day rainfall. The city's flat terrain and clay soil make flooding the primary hazard — even moderate rain can overwhelm drainage.
Elsewhere in United States