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Emmaus, PA Weather Tomorrow

Before heading out, check tomorrow's Emmaus weather and the extended 5 day forecast featuring precipitation potential, daytime and nighttime forecasts, temperature highs and lows in Fahrenheit and Celsius, sunrise and sunset times, cloud cover, wind chill, wind speed, and wind direction across the Emmaus area and around Lehigh county, Pennsylvania.
Updated: Sat Sep 19th 2026 2:30 AM EDT
Emmaus, PA Weather – 9-19 – Sunny
70° / 53°
Sunny
In Emmaus, it will be sunny with highs near 70°F and lows around 53°F. There's a very small chance of rainfall, only about 6%. Winds will be light at 9mph and gusts of 17.9mph at 7 AM. The humidity will be on the higher side, averaging about 62%, the maximum being 84% at 10 PM and 44% being its lowest at 1 PM. Barometric pressure is its highest of 30.21inHg at 10 AM, a lowest point of 30.12inHg at 5 PM with an avg 30.17inHg.
Emmaus, PA Weather – 9-20 – Light Rain Shower
65° / 59°

Weather Tomorrow

Light Rain Shower
In Emmaus, periods of rain are likely with highs near 65°F and lows around 59°F. The chance of rain is 91% with an estimated 0.69in. Winds will be light at 10mph and gusts of 24.7mph at 10 AM. High humidity with average of 90% is anticipated, the maximum being 100% at 6 PM and 78% being its lowest at 12 AM. Barometric pressure is its highest of 30.16inHg at 12 AM, a lowest point of 29.93inHg at 6 PM with an avg 30.03inHg.
Emmaus, PA Weather – 9-21 – Light Rain Shower
61° / 54°
Light Rain Shower
Rain is in the forecast for Emmaus, with a high of 61°F and a low of 54°F. The chance of rain is 94% with an estimated 0.44in. Wind will be moderate, blowing around 11mph on average and gusts of 22.7mph at 11 PM. High humidity with average of 96% is anticipated, the maximum being 99% at 2 AM and 90% being its lowest at 3 PM. Barometric pressure is its highest of 30.13inHg at 11 PM, a lowest point of 29.95inHg at 1 AM with an avg 30.05inHg.
Emmaus, PA Weather – 9-22 – Light Rain Shower
56° / 46°
Light Rain Shower
Daytime highs will reach 56°F with lows dropping to 46°F in Emmaus, where periods of rain are likely. The chance of rain is 94% with an estimated 1.09in. Wind will be moderate, blowing around 17mph on average and gusts of 34.4mph at 4 PM. High humidity with average of 96% is anticipated, the maximum being 98% at 1 PM and 95% being its lowest at 5 PM. Barometric pressure is its highest of 30.33inHg at 10 PM, a lowest point of 30.13inHg at 12 AM with an avg 30.22inHg.
Emmaus, PA Weather – 9-23 – Scattered Showers
56° / 46°
Scattered Showers
Showers likely at times in Emmaus, with a high of 56°F and a low of 46°F. The chance of rain is 91% with an estimated 0.95in. Wind will be moderate, blowing around 14mph on average and gusts of 34.2mph at 12 PM. High humidity with average of 89% is anticipated, the maximum being 97% at 3 AM and 79% being its lowest at 8 PM. Barometric pressure is its highest of 30.37inHg at 9 AM, a lowest point of 30.27inHg at 5 PM with an avg 30.31inHg.
Emmaus, PA Weather – 9-24 – Light Rain Shower
53° / 50°
Light Rain Shower
Daytime highs will reach 53°F with lows dropping to 50°F in Emmaus, where periods of rain are likely. The chance of rain is 93% with an estimated 0.58in. Wind will be moderate, blowing around 13mph on average and gusts of 28.9mph at 12 AM. High humidity with average of 95% is anticipated, the maximum being 98% at 4 PM and 85% being its lowest at 12 AM. Barometric pressure is its highest of 30.26inHg at 12 AM, a lowest point of 30.13inHg at 11 PM with an avg 30.2inHg.

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