Galveston weather live forecast

Today's maximum temperature in Galveston is expected to be 28°C. Select a day from the live weather forecast for Galveston, Texas, USA for more weather parameters.

Tuesday
19th May
28

26

4

UV8
Wednesday
20th May
28

25

6

UV8
Thursday
21st May
27

26

4

UV5
Friday
22nd May
28

24

4

UV7
Saturday
23rd May
28

25

4

UV8

5-day weather forecast updated at 04:02 on Tuesday 19th May 2026 GMT

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The 5-day weather forecast for Texas (Galveston) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Galveston weather forecast by day

Below are the detailed weather forecasts for Galveston for the next 5 days.

Galveston weather for Tuesday 19th May 2026

Expect isolated thunderstorms in Galveston, Texas with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 58% chance of some rain and a moderate breeze of 28 kph from the south-east.

28
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
UV8
UV index (Very High)
58
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
28
kph wind from SE

Galveston weather for Wednesday 20th May 2026

Expect isolated thunderstorms in Galveston, Texas with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 57% chance of some rain and a moderate breeze of 20 kph from the south-east.

28
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
UV8
UV index (Very High)
57
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
20
kph wind from SE

Galveston weather for Thursday 21st May 2026

Expect isolated thunderstorms in Galveston, Texas with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 77% chance of some rain and a moderate breeze of 21 kph from the south.

27
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
UV5
UV index (Moderate)
77
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
21
kph wind from S

Galveston weather for Friday 22nd May 2026

Expect isolated thunderstorms in Galveston, Texas with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 78% chance of some rain and a gentle breeze of 19 kph from the south.

28
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
UV7
UV index (High)
78
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
19
kph wind from S

Galveston weather for Saturday 23rd May 2026

Expect isolated thunderstorms in Galveston, Texas with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 66% chance of some rain and a moderate breeze of 20 kph from the south-east.