Old Union, TX Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Old Union, TX in one place.
Mostly sunny, with a high near 93. South wind 5 to 10 mph.
Local Weather Overview
This forecast page for Old Union, 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: Jun 8, 2026 11:11 PM CDT.
The active forecast window currently covers Jun 9 to Jun 15, 2026 for Old Union, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 15, 2026
- Latest sync
- Jun 8, 2026 11:11 PM CDT
- Forecast office
- SHV
- Source
- NOAA / NWS
Daily Outlook
This Week in Old Union
Thursday looks like the warmest upcoming period in Old Union at 94 degrees F.
Sunday Night is the coolest period ahead with temperatures near 73 degrees F.
The strongest winds are forecast for Thursday at about 10 to 15 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 11:11 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- SHV
- Radar station
- KSHV
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 76. South wind around 5 mph.
Mostly sunny, with a high near 93. Heat index values as high as 102. South wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 78. South wind around 10 mph.
Mostly sunny, with a high near 94.
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 76. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. Chance of precipitation is 20%.
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 76. Chance of precipitation is 40%.
A chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 89.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Mostly Sunny
|
93°F |
5 to 10 mph
S
|
|
Tuesday Night
Jun 9
|
Mostly Clear
|
76°F |
5 mph
S
|
|
Wednesday
Jun 10
|
Mostly Sunny
|
93°F |
5 to 10 mph
S
|
|
Wednesday Night
Jun 10
|
Mostly Clear
|
78°F |
10 mph
S
|
|
Thursday
Jun 11
|
Mostly Sunny
|
94°F |
10 to 15 mph
S
|
|
Thursday Night
Jun 11
|
Mostly Clear then Slight Chance Showers And Thunderstorms
|
76°F |
5 to 10 mph
S
|
|
Friday
Jun 12
|
Slight Chance Showers And Thunderstorms
|
92°F |
5 mph
SW
|
|
Friday Night
Jun 12
|
Slight Chance Showers And Thunderstorms
|
76°F |
0 to 5 mph
S
|
|
Saturday
Jun 13
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
93°F |
5 to 10 mph
SW
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
76°F |
5 mph
S
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
91°F |
5 to 10 mph
S
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms
|
73°F |
5 mph
SE
|
|
Monday
Jun 15
|
Chance Showers And Thunderstorms
|
89°F |
5 to 10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Old Union.