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Mcallen, TX Weather Tomorrow

See what tomorrow's weather has in store for Mcallen with a reliable 5 day forecast featuring precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction for the Mcallen area and around Hidalgo county, Texas.
Updated: Thu Sep 10th 2026 9:15 AM CDT
Mcallen, TX Weather – 9-10 – Sunny
103° / 78°
Sunny
Daytime highs will reach 103°F with lows dropping to 78°F in Mcallen, where bright and sunny conditions. There's a very small chance of rainfall, only about 4%. Winds will be strong at speeds peaking at 22mph and gusts of 30.9mph at 6 PM. The humidity will be on the higher side, averaging about 63%, the maximum being 70% at 11 PM and 26% being its lowest at 4 PM. Barometric pressure is its highest of 29.96inHg at 10 AM, a lowest point of 29.77inHg at 5 PM with an avg 29.86inHg.
Mcallen, TX Weather – 9-11 – Sunny
102° / 80°

Weather Tomorrow

Sunny
In Mcallen, bright and sunny conditions with highs near 102°F and lows around 80°F. There's a very small chance of rainfall, only about 3%. Winds will be strong at speeds peaking at 22mph and gusts of 33.1mph at 5 PM. Humidity levels should be comfortable, sitting around 57% on average, the maximum being 80% at 7 AM and 28% being its lowest at 3 PM. Barometric pressure is its highest of 29.88inHg at 12 AM, a lowest point of 29.72inHg at 5 PM with an avg 29.83inHg.
Mcallen, TX Weather – 9-12 – Sunny
102° / 82°
Sunny
Bright and sunny conditions in Mcallen, with a high of 102°F and a low of 82°F. There's a very small chance of rainfall, only about 6%. Winds will be strong at speeds peaking at 22mph and gusts of 30.5mph at 12 AM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 79% at 7 AM and 32% being its lowest at 3 PM. Barometric pressure is its highest of 29.86inHg at 11 PM, a lowest point of 29.76inHg at 5 PM with an avg 29.81inHg.
Mcallen, TX Weather – 9-13 – Sunny
100° / 82°
Sunny
Mcallen may see a sunny day, with daytime highs of 100°F and overnight lows near 82°F. There's a very small chance of rainfall, only about 4%. Winds will be strong at speeds peaking at 21mph and gusts of 29.6mph at 12 AM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 80% at 7 AM and 33% being its lowest at 2 PM. Barometric pressure is its highest of 29.93inHg at 11 PM, a lowest point of 29.78inHg at 5 PM with an avg 29.86inHg.
Mcallen, TX Weather – 9-14 – Sunny
100° / 82°
Sunny
Mcallen may see a sunny day, with daytime highs of 100°F and overnight lows near 82°F. There's a very small chance of rainfall, only about 3%. Wind will be moderate, blowing around 20mph on average and gusts of 26.6mph at 1 AM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 82% at 6 AM and 32% being its lowest at 4 PM. Barometric pressure is its highest of 29.96inHg at 9 AM, a lowest point of 29.82inHg at 4 PM with an avg 29.9inHg.
Mcallen, TX Weather – 9-15 – Sunny
100° / 81°
Sunny
In Mcallen, it will be sunny with highs near 100°F and lows around 81°F. There's a very small chance of rainfall, only about 5% with an estimated 0in. Wind will be moderate, blowing around 20mph on average and gusts of 29.5mph at 4 PM. Humidity levels should be comfortable, sitting around 58% on average, the maximum being 80% at 6 AM and 29% being its lowest at 4 PM. Barometric pressure is its highest of 30.01inHg at 10 AM, a lowest point of 29.89inHg at 4 PM with an avg 29.95inHg.

Currently

Sunny 84°F
29.97 inHg.
Barometer
80%
Humidity
SSE 19.1 mph
Wind
Sunny

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