Clear Lake City, TX Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Clear Lake City, TX in one place.
A slight chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 94. Heat index values as high as 107. East wind 0 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Clear Lake City, TX is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 15, 2026 6:42 PM CDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Clear Lake City, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 6:42 PM CDT
- Forecast office
- HGX
- Source
- NOAA / NWS
Daily Outlook
This Week in Clear Lake City
Wednesday looks like the warmest upcoming period in Clear Lake City at 94 degrees F.
Friday Night is the coolest period ahead with temperatures near 77 degrees F.
The strongest winds are forecast for Thursday at about 10 to 15 mph E.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 6:42 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- HGX
- Radar station
- KHGX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 81. Heat index values as high as 106. East wind 5 to 10 mph. Chance of precipitation is 30%.
Showers and thunderstorms likely. Mostly sunny, with a high near 91. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 7pm. Mostly clear, with a low around 79. Chance of precipitation is 60%.
Sunny, with a high near 92.
Clear, with a low around 77.
Sunny, with a high near 92.
Mostly clear, with a low around 78.
Sunny, with a high near 93.
Mostly clear, with a low around 78.
A chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Slight Chance Showers And Thunderstorms
|
94°F |
0 to 10 mph
E
|
|
Wednesday Night
Sep 16
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
81°F |
5 to 10 mph
E
|
|
Thursday
Sep 17
|
Showers And Thunderstorms Likely
|
91°F |
10 to 15 mph
E
|
|
Thursday Night
Sep 17
|
Showers And Thunderstorms Likely then Mostly Clear
|
79°F |
5 to 10 mph
E
|
|
Friday
Sep 18
|
Sunny
|
92°F |
5 to 10 mph
E
|
|
Friday Night
Sep 18
|
Clear
|
77°F |
0 to 10 mph
SE
|
|
Saturday
Sep 19
|
Sunny
|
92°F |
0 to 10 mph
E
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
78°F |
0 to 10 mph
S
|
|
Sunday
Sep 20
|
Sunny
|
93°F |
0 to 10 mph
SE
|
|
Sunday Night
Sep 20
|
Mostly Clear
|
78°F |
0 to 10 mph
S
|
|
Monday
Sep 21
|
Chance Showers And Thunderstorms
|
93°F |
0 to 5 mph
NE
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms then Partly Cloudy
|
78°F |
0 to 5 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Clear Lake City.