Oklahoma City, Oklahoma weather in May

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

Average high: 79°F
Average low: 61°F
Rainy days: ~12 per month
Total precipitation: 5.2 in
Warmest recorded: 97°F
Coldest recorded: 44°F

Expect May days in Oklahoma City, Oklahoma to top out around 79°F and cool to about 61°F overnight, with roughly 12 days of measurable rain across the month. In recent years May has ranged from 44°F to 97°F.

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Current Oklahoma City, Oklahoma forecast → · Historical data by Open-Meteo (ERA5).