Johnson County, TX Weather Forecast
County weather hub
Sunny
Compare major city weather across Johnson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 100. Heat index values as high as 102. South wind around 5 mph.
County Weather Overview
This county weather page brings together forecast coverage for Johnson County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 8 of 8 mapped cities in Johnson County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 28, 2026 6:14 PM CDT
- Forecast office
- FWD
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnson County
Saturday looks like the warmest upcoming period in Johnson County at 100 degrees F.
Saturday Night is the coolest period ahead with temperatures near 76 degrees F.
The strongest winds are forecast for Saturday Night at about 5 to 10 mph SSE.
The forecast from Aug 29 through Sep 3 stays mostly dry.
Forecast Details
- Last updated
- Aug 28, 2026 6:14 PM CDT
- Coverage
- 6 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
Mostly clear. Low around 76, with temperatures rising to around 78 overnight. Heat index values as high as 104. South southeast wind 5 to 10 mph.
Sunny. High near 100, with temperatures falling to around 98 in the afternoon. South wind 5 to 10 mph.
Clear. Low around 76, with temperatures rising to around 78 overnight. South wind 5 to 10 mph.
Sunny, with a high near 99. South wind 5 to 10 mph.
Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.
Sunny, with a high near 99. South wind 5 to 10 mph.
Mostly clear, with a low around 76.
Sunny, with a high near 99.
Mostly clear, with a low around 76.
Sunny, with a high near 100.
Mostly clear, with a low around 76.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Sunny
|
100°F |
5 mph
S
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
76°F |
5 to 10 mph
SSE
|
|
Sunday
Aug 30
|
Sunny
|
100°F |
5 to 10 mph
S
|
|
Sunday Night
Aug 30
|
Clear
|
76°F |
5 to 10 mph
S
|
|
Monday
Aug 31
|
Sunny
|
99°F |
5 to 10 mph
S
|
|
Monday Night
Aug 31
|
Mostly Clear
|
76°F |
5 to 10 mph
SSE
|
|
Tuesday
Sep 1
|
Sunny
|
99°F |
5 to 10 mph
S
|
|
Tuesday Night
Sep 1
|
Mostly Clear
|
76°F |
5 to 10 mph
SSE
|
|
Wednesday
Sep 2
|
Sunny
|
99°F |
5 to 10 mph
S
|
|
Wednesday Night
Sep 2
|
Mostly Clear
|
76°F |
5 to 10 mph
SSE
|
|
Thursday
Sep 3
|
Sunny
|
100°F |
5 to 10 mph
S
|
|
Thursday Night
Sep 3
|
Mostly Clear
|
76°F |
10 mph
SSE
|
Major City Forecasts
Live forecast snapshots for major cities across Johnson County.
Coverage
Forecast coverage currently spans 8 of 8 mapped cities in Johnson County.
Largest mapped city population in this region: 49,686.
