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Old Union, TX Weather Forecast

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Old Union, TX Weather Forecast

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Old Union TX weather - Clear - 90°F
Clear
90°F
Updated 3:45 pm
Feels Like 95°F
Humidity 42%
Wind ESE 6 mph
Barometer  29.9 in
Dew Point 64°F
Old Union TX weather - Clear - 32°C
Clear
32°C
Updated 3:45 pm
Feels Like 35°C
Humidity 42%
Wind ESE 10 km/h
Barometer  101.3 kPa
Dew Point 18°C
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Old Union Weather Forecast

THIS AFTERNOON TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT
Old Union, TX Weather - This Afternoon Chance Of T-Storm Old Union, TX Weather - Tonight Chance Of T-Storm Old Union, TX Weather - Monday Chance Of T-Storm Old Union, TX Weather - Monday Night Clearing Old Union, TX Weather - Tuesday Mostly Sunny Old Union, TX Weather - Tuesday Night Partly Cloudy Old Union, TX Weather - Wednesday Chance Of T-Storm Old Union, TX Weather - Wednesday Night Chance Of T-Storm Old Union, TX Weather - Thursday Chance Of T-Storm Old Union, TX Weather - Thursday Night Chance Of T-Storm Old Union, TX Weather - Friday Chance Of T-Storm Old Union, TX Weather - Friday Night Chance Of T-Storm
Chance of T-Storm Chance of T-Storm Chance of T-Storm Clearing Mostly Sunny Partly Cloudy Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm
Hi: 95°FHi: 35°C
 Lo: 70°FLo: 21°C Hi: 95°FHi: 35°C
 Lo: 70°FLo: 21°C Hi: 95°FHi: 35°C
 Lo: 71°FLo: 22°C Hi: 91°FHi: 33°C
 Lo: 71°FLo: 22°C Hi: 85°FHi: 29°C
 Lo: 69°FLo: 21°C Hi: 80°FHi: 27°C
 Lo: 65°FLo: 18°C
POP: 20% POP: 20% POP: 20% POP: 50% POP: 70% POP: 90% POP: 70% POP: 70% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 113 PM CDT Sun Sep 27 2026 Old Union, TX Weather - WeatherWorld.com

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Issued: 148 PM CDT Sun Sep 27 2026

Key Messages

  • A few strong storms are possible this afternoon and again Monday afternoon/evening. Gusty winds, small hail, and frequent lightning will be the main hazards.
  • A more active weather pattern is expected this week with a period of widespread rain and storms beginning early Wednesday and continuing through next weekend.
  • Heavy rainfall and localized flooding are becoming a concern Wednesday through the end of the week. There is a low (25%) chance for rainfall totals exceeding 7 inches in s...