Union County, NM 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: Sun Sep 20th 2026 9:00 AM MDT
Union County, NM Weather – 9-20 – Sunny
82° / 58°
Sunny
Highs will reach 82°F with lows near 58°F in Union County, where a sunny day is. There's a very small chance of rainfall, only about 1%. Winds will be light at 10mph and gusts of 14.3mph at 7 PM. Humidity levels should be comfortable, sitting around 38% on average, the maximum being 39% at 10 AM and 15% being its lowest at 4 PM. Barometric pressure is its highest of 29.96inHg at 10 AM, a lowest point of 29.81inHg at 5 PM with an avg 29.88inHg.
Union County, NM Weather – 9-21 – Sunny
73° / 58°

Weather Tomorrow

Sunny
In Union County, bright and sunny conditions with highs near 73°F and lows around 58°F. Rainfall predicted to have a 57% chance with an estimated 0.06in. Wind will be moderate, blowing around 17mph on average and gusts of 25.1mph at 4 PM. The humidity will be on the higher side, averaging about 70%, the maximum being 90% at 2 AM and 46% being its lowest at 3 PM. Barometric pressure is its highest of 30.07inHg at 8 AM, a lowest point of 29.95inHg at 5 PM with an avg 30.01inHg.
Union County, NM Weather – 9-22 – Scattered Showers
77° / 56°
Scattered Showers
Passing showers are in the forecast for Union County, with a high of 77°F and a low of 56°F. The chance of rain is 81% with an estimated 0.59in. Winds will be strong at speeds peaking at 21mph and gusts of 29.8mph at 11 PM. The humidity will be on the higher side, averaging about 71%, the maximum being 96% at 2 AM and 36% being its lowest at 5 PM. Barometric pressure is its highest of 30.09inHg at 8 AM, a lowest point of 29.9inHg at 6 PM with an avg 30.03inHg.
Union County, NM Weather – 9-23 – Light Rain Shower
65° / 57°
Light Rain Shower
In Union County, periods of rain are likely with highs near 65°F and lows around 57°F. The chance of rain is 91% with an estimated 1.36in. Wind will be moderate, blowing around 19mph on average and gusts of 28.7mph at 12 AM. High humidity with average of 87% is anticipated, the maximum being 95% at 11 AM and 73% being its lowest at 6 PM. Barometric pressure is its highest of 30.15inHg at 11 AM, a lowest point of 30.05inHg at 6 PM with an avg 30.1inHg.
Union County, NM Weather – 9-24 – Light Rain Shower
78° / 58°
Light Rain Shower
Union County could see rain with daytime highs of 78°F and nighttime lows near 58°F. The chance of rain is 83% with an estimated 0.51in. Wind will be moderate, blowing around 19mph on average and gusts of 30.9mph at 2 AM. The humidity will be on the higher side, averaging about 73%, the maximum being 99% at 1 AM and 35% being its lowest at 3 PM. Barometric pressure is its highest of 30.1inHg at 9 PM, a lowest point of 29.91inHg at 3 PM with an avg 30.01inHg.
Union County, NM Weather – 9-25 – Light Rain Shower
77° / 59°
Light Rain Shower
Rain is in the forecast for Union County, with a high of 77°F and a low of 59°F. Rainfall predicted to have a 61% chance with an estimated 0.25in. Winds will be light at 10mph and gusts of 15.7mph at 12 PM. Humidity levels should be comfortable, sitting around 55% on average, the maximum being 70% at 3 AM and 38% being its lowest at 3 PM. Barometric pressure is its highest of 30.09inHg at 9 AM, a lowest point of 29.97inHg at 6 PM with an avg 30.05inHg.

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