Clear Lake, TX Weather Forecast
Local 7-day forecast
Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Clear Lake, TX in one place.
Clear. Low around 78, with temperatures rising to around 80 overnight. South wind 5 to 10 mph.
Local Weather Overview
This forecast page for Clear Lake, 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 16, 2026 5:29 AM CDT.
The active forecast window currently covers Sep 16 to Sep 22, 2026 for Clear Lake, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 22, 2026
- Latest sync
- Sep 16, 2026 5:29 AM CDT
- Forecast office
- FWD
- Source
- NOAA / NWS
Daily Outlook
This Week in Clear Lake
Thursday looks like the warmest upcoming period in Clear Lake at 100 degrees F.
Monday Night is the coolest period ahead with temperatures near 72 degrees F.
The strongest winds are forecast for Overnight at about 5 to 10 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 16, 2026 5:29 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- FWD
- Radar station
- KFWS
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Sunny, with a high near 98. Heat index values as high as 103. South wind 5 to 10 mph.
Mostly clear. Low around 77, with temperatures rising to around 79 overnight. Heat index values as high as 101. Southeast wind around 5 mph.
Mostly sunny. High near 100, with temperatures falling to around 98 in the afternoon. Heat index values as high as 105. South southeast wind around 5 mph.
Partly cloudy. Low around 77, with temperatures rising to around 79 overnight. Southeast wind around 5 mph.
Sunny. High near 98, with temperatures falling to around 96 in the afternoon. South wind around 5 mph.
Mostly clear, with a low around 76. South wind around 5 mph.
Sunny, with a high near 98. South wind 5 to 10 mph.
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Sunny, with a high near 98.
Partly cloudy, with a low around 76.
A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 95. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Sep 16
|
Clear
|
78°F |
5 to 10 mph
S
|
|
Wednesday
Sep 16
|
Sunny
|
98°F |
5 to 10 mph
S
|
|
Wednesday Night
Sep 16
|
Mostly Clear
|
77°F |
5 mph
SE
|
|
Thursday
Sep 17
|
Mostly Sunny
|
100°F |
5 mph
SSE
|
|
Thursday Night
Sep 17
|
Partly Cloudy
|
77°F |
5 mph
SE
|
|
Friday
Sep 18
|
Sunny
|
98°F |
5 mph
S
|
|
Friday Night
Sep 18
|
Mostly Clear
|
76°F |
5 mph
S
|
|
Saturday
Sep 19
|
Sunny
|
98°F |
5 to 10 mph
S
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
75°F |
5 to 10 mph
S
|
|
Sunday
Sep 20
|
Sunny
|
98°F |
5 to 10 mph
SSW
|
|
Sunday Night
Sep 20
|
Partly Cloudy
|
76°F |
5 mph
S
|
|
Monday
Sep 21
|
Chance Showers And Thunderstorms
|
95°F |
5 mph
S
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
72°F |
5 mph
E
|
|
Tuesday
Sep 22
|
Chance Rain Showers
|
92°F |
5 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Clear Lake.