Houston, Texas weather in March

Averages from 2021–2025 (155 days of record).

Average high: 74°F
Average low: 56°F
Rainy days: ~15 per month
Total precipitation: 4.9 in
Warmest recorded: 89°F
Coldest recorded: 33°F

Expect March days in Houston, Texas to top out around 74°F and cool to about 56°F overnight, with roughly 15 days of measurable rain across the month. In recent years March has ranged from 33°F to 89°F.

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Current Houston, Texas forecast → · Historical data by Open-Meteo (ERA5).