The weather in Katy in May is hot. The average temperatures are between 20°C and 30°C.
You can expect rain for roughly half of the month of May in Katy. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Katy in May 2025.
If you’re planning to visit Katy in the near future, we highly recommend that you review the 14 day weather forecast for Katy before you arrive.
Temperatures
30° / 20°
Rainy Days
8
Snowy Days
0
Dry Days
23
Rainfall
172
mm
Sun Hours
10.0
Hrs
