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Roslyn, PA Weather Tomorrow

Tomorrow's weather forecast for Roslyn is supported by a complete 5 day outlook covering 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 for the Roslyn area and around Montgomery county, Pennsylvania.
Updated: Wed Oct 21st 2026 6:00 PM EDT
Roslyn, PA Weather – 10-21 – Sunny
64° / 49°
Sunny
Roslyn may see sunshine, with daytime highs of 64°F and overnight lows near 49°F. There's a very small chance of rainfall, only about 4%. Wind will be moderate, blowing around 11mph on average and gusts of 21.9mph at 10 PM. Humidity levels should be comfortable, sitting around 47% on average, the maximum being 58% at 11 PM and 42% being its lowest at 7 PM. Barometric pressure is its highest of 30.11inHg at 7 PM, a lowest point of 30.08inHg at 10 PM with an avg 30.09inHg.
Roslyn, PA Weather – 10-22 – Sunny
67° / 46°

Weather Tomorrow

Sunny
Roslyn may see a sunny day, with daytime highs of 67°F and overnight lows near 46°F. There's a very small chance of rainfall, only about 2%. Wind will be moderate, blowing around 11mph on average and gusts of 25.2mph at 10 PM. Humidity levels should be comfortable, sitting around 48% on average, the maximum being 66% at 5 AM and 23% being its lowest at 1 PM. Barometric pressure is its highest of 30.13inHg at 10 PM, a lowest point of 30inHg at 3 PM with an avg 30.05inHg.
Roslyn, PA Weather – 10-23 – Sunny
61° / 46°
Sunny
Roslyn is set for sunshine with temperatures peaking at 61°F and dipping to 46°F. There's a very small chance of rainfall, only about 2%. Winds will be light at 10mph and gusts of 24.9mph at 6 AM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 80% at 5 AM and 31% being its lowest at 4 PM. Barometric pressure is its highest of 30.49inHg at 11 PM, a lowest point of 30.15inHg at 12 AM with an avg 30.34inHg.
Roslyn, PA Weather – 10-24 – Smoky Haze
62° / 44°
Smoky Haze
Roslyn could see smoky Haze with daytime highs of 62°F and nighttime lows near 44°F. There's a very small chance of rainfall, only about 2%. Winds will be light at 4mph and gusts of 11.9mph at 10 AM. Humidity levels should be comfortable, sitting around 49% on average, the maximum being 68% at 5 AM and 30% being its lowest at 3 PM. Barometric pressure is its highest of 30.59inHg at 10 AM, a lowest point of 30.5inHg at 12 AM with an avg 30.54inHg.
Roslyn, PA Weather – 10-25 – Smoky Haze
63° / 47°
Smoky Haze
Roslyn is set for smoky Haze with temperatures peaking at 63°F and dipping to 47°F. There's a very small chance of rainfall, only about 2%. Winds will be light at 6mph and gusts of 9.9mph at 11 PM. Humidity levels should be comfortable, sitting around 54% on average, the maximum being 75% at 6 AM and 30% being its lowest at 3 PM. Barometric pressure is its highest of 30.6inHg at 9 AM, a lowest point of 30.46inHg at 6 PM with an avg 30.54inHg.
Roslyn, PA Weather – 10-26 – Sunny
66° / 48°
Sunny
In Roslyn, sunshine is likely with a high near 66°F and a low around 48°F. There's a very small chance of rainfall, only about 4%. Winds will be light at 8mph and gusts of 14.3mph at 8 PM. The humidity will be on the higher side, averaging about 61%, the maximum being 81% at 7 AM and 41% being its lowest at 2 PM. Barometric pressure is its highest of 30.45inHg at 12 AM, a lowest point of 30.21inHg at 11 PM with an avg 30.32inHg.

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