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Union County, LA Weather Tomorrow

See tomorrow's forecast for Union County together with a reliable 5 day outlook featuring precipitation probability, daily and nightly weather conditions, high and low temperature trends, sunrise and sunset information, sky cover, wind speed, wind direction, and wind chill for the Union County area.
Updated: Wed Oct 14th 2026 5:15 PM CDT
Union County, LA Weather – 10-14 – Sunny
96° / 72°
Sunny
A sunny day is in the forecast for Union County, with a high of 96°F and a low of 72°F. There's a moderate 36% chance of rainfall with an estimated 0.03in. Winds will be light at 9mph and gusts of 23mph at 11 PM. Humidity levels should be comfortable, sitting around 58% on average, the maximum being 40% at 7 PM and 36% being its lowest at 6 PM. Barometric pressure is its highest of 29.97inHg at 10 PM, a lowest point of 29.93inHg at 6 PM with an avg 29.96inHg.
Union County, LA Weather – 10-15 – Sunny
93° / 66°

Weather Tomorrow

Sunny
In Union County, it will be sunny with highs near 93°F and lows around 66°F. There's a very small chance of rainfall, only about 2%. Winds will be light at 8mph and gusts of 26.2mph at 12 AM. Humidity levels should be comfortable, sitting around 50% on average, the maximum being 84% at 7 AM and 26% being its lowest at 3 PM. Barometric pressure is its highest of 30.08inHg at 9 AM, a lowest point of 29.94inHg at 5 PM with an avg 30.01inHg.
Union County, LA Weather – 10-16 – Sunny
78° / 57°
Sunny
It will be sunny in Union County, with a high of 78°F and a low of 57°F. There's a very small chance of rainfall, only about 2%. Wind will be moderate, blowing around 15mph on average and gusts of 24.9mph at 7 AM. Humidity levels should be comfortable, sitting around 47% on average, the maximum being 80% at 8 AM and 21% being its lowest at 5 PM. Barometric pressure is its highest of 30.34inHg at 11 PM, a lowest point of 30inHg at 12 AM with an avg 30.15inHg.
Union County, LA Weather – 10-17 – Sunny
70° / 47°
Sunny
It will be sunny in Union County, with a high of 70°F and a low of 47°F. There's a very small chance of rainfall, only about 2%. Wind will be moderate, blowing around 12mph on average and gusts of 25.3mph at 2 AM. Humidity levels should be comfortable, sitting around 47% on average, the maximum being 65% at 8 AM and 30% being its lowest at 4 PM. Barometric pressure is its highest of 30.46inHg at 9 AM, a lowest point of 30.28inHg at 5 PM with an avg 30.36inHg.
Union County, LA Weather – 10-18 – Sunny
77° / 46°
Sunny
Union County may see a sunny day, with daytime highs of 77°F and overnight lows near 46°F. There's a very small chance of rainfall, only about 3%. Winds will be light at 7mph and gusts of 14.6mph at 8 AM. Humidity levels should be comfortable, sitting around 45% on average, the maximum being 71% at 7 AM and 22% being its lowest at 4 PM. Barometric pressure is its highest of 30.35inHg at 10 AM, a lowest point of 30.19inHg at 5 PM with an avg 30.27inHg.
Union County, LA Weather – 10-19 – Overcast
76° / 52°
Overcast
Union County could see overcast with daytime highs of 76°F and nighttime lows near 52°F. There's a very small chance of rainfall, only about 9%. Winds will be light at 5mph and gusts of 11.3mph at 4 AM. Humidity levels should be comfortable, sitting around 57% on average, the maximum being 83% at 7 AM and 45% being its lowest at 4 PM. Barometric pressure is its highest of 30.27inHg at 10 AM, a lowest point of 30.16inHg at 5 PM with an avg 30.21inHg.
Union County, LA Weather Forecast - 10 Day Detailed

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