Cost, TX Weather Forecast
Local 7-day forecast
Partly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Cost, TX in one place.
A chance of showers and thunderstorms after 1pm. Partly sunny. High near 98, with temperatures falling to around 94 in the afternoon. Heat index values as high as 106. East northeast wind 0 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Cost, 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 7:48 PM CDT.
The active forecast window currently covers Sep 17 to Sep 22, 2026 for Cost, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 17 to Sep 22, 2026
- Latest sync
- Sep 16, 2026 7:48 PM CDT
- Forecast office
- EWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Cost
Thursday looks like the warmest upcoming period in Cost at 98 degrees F.
Friday Night is the coolest period ahead with temperatures near 71 degrees F.
The strongest winds are forecast for Thursday at about 0 to 10 mph ENE.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 16, 2026 7:48 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- EWX
- Radar station
- KEWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 72. Heat index values as high as 100. East southeast wind 0 to 10 mph. Chance of precipitation is 30%.
Sunny, with a high near 98. East wind 0 to 10 mph.
Mostly clear, with a low around 71. East southeast wind 0 to 10 mph.
Sunny, with a high near 98. East northeast wind 0 to 10 mph.
Mostly clear, with a low around 72. Southeast wind 0 to 10 mph.
Sunny, with a high near 98. South southeast wind 0 to 5 mph.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 20%.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 97. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly clear, with a low around 72. Chance of precipitation is 30%.
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 96. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Sep 17
|
Partly Sunny then Chance Showers And Thunderstorms
|
98°F |
0 to 10 mph
ENE
|
|
Thursday Night
Sep 17
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
72°F |
0 to 10 mph
ESE
|
|
Friday
Sep 18
|
Sunny
|
98°F |
0 to 10 mph
E
|
|
Friday Night
Sep 18
|
Mostly Clear
|
71°F |
0 to 10 mph
ESE
|
|
Saturday
Sep 19
|
Sunny
|
98°F |
0 to 10 mph
ENE
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
72°F |
0 to 10 mph
SE
|
|
Sunday
Sep 20
|
Sunny
|
98°F |
0 to 5 mph
SSE
|
|
Sunday Night
Sep 20
|
Partly Cloudy then Slight Chance Rain Showers
|
73°F |
0 to 10 mph
SE
|
|
Monday
Sep 21
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
97°F |
0 to 5 mph
SE
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
72°F |
0 to 5 mph
E
|
|
Tuesday
Sep 22
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
96°F |
0 to 5 mph
E
|
|
Tuesday Night
Sep 22
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
72°F |
0 to 5 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Cost.