Old Union Weather Forecast
- 31
- 52
Sunny
- 39
- 65
Mostly Sunny
- 57
- 70
Partly Sunny
- 43
- 78
Sunny
- 44
- 67
Mostly Sunny
- 52
- 73
Partly Sunny
- 51
- 74
Mostly Cloudy
Today 30 Dec Limestone
Sunny. Highs in the lower 50s. Northwest Winds around 5 Mph.
Tonight 30 Dec Limestone
Clear. Lows in the lower 30s. Southwest Winds around 5 Mph.
Old Union Temperature Statistics
December Temperature
Mexia Limestone County Airport (16.8 miles)
Lowest 15 December, 2025
26.1 °FAverage December
52.6 °FHighest 26 December, 2025
79.9 °F
Climate (2020–Present)
Mexia Limestone County Airport (16.8 miles)
Average Low 2020–2025
58.1 °FAverage 2020–2025
67.9 °FAverage High 2020–2025
78.6 °F