Swarthmore, PA Weather Tomorrow

Get the forecast you need for Swarthmore tomorrow with an extended 5 day weather outlook featuring daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details throughout the Swarthmore area and around Delaware county, Pennsylvania.
Updated: Thu Sep 24th 2026 12:15 PM EDT
Swarthmore, PA Weather – 9-24 – Overcast
67° / 55°
Overcast
Overcast is in the forecast for Swarthmore, with a high of 67°F and a low of 55°F. There might be light rainfall having a 12% chance. Wind will be moderate, blowing around 16mph on average and gusts of 22.2mph at 11 PM. Humidity levels should be comfortable, sitting around 56% on average, the maximum being 54% at 1 PM and 44% being its lowest at 5 PM. Barometric pressure is its highest of 30.35inHg at 1 PM, a lowest point of 30.23inHg at 11 PM with an avg 30.27inHg.
Swarthmore, PA Weather – 9-25 – Sunny
73° / 52°

Weather Tomorrow

Sunny
Daytime highs will reach 73°F with lows dropping to 52°F in Swarthmore, where bright and sunny conditions. There's a very small chance of rainfall, only about 2%. Wind will be moderate, blowing around 15mph on average and gusts of 32.2mph at 9 AM. Humidity levels should be comfortable, sitting around 42% on average, the maximum being 55% at 8 AM and 26% being its lowest at 3 PM. Barometric pressure is its highest of 30.21inHg at 12 AM, a lowest point of 30.02inHg at 5 PM with an avg 30.1inHg.
Swarthmore, PA Weather – 9-26 – Sunny
74° / 54°
Sunny
In Swarthmore, it will be sunny with highs near 74°F and lows around 54°F. There's a very small chance of rainfall, only about 4%. Wind will be moderate, blowing around 13mph on average and gusts of 25.6mph at 9 PM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 67% at 8 AM and 36% being its lowest at 4 PM. Barometric pressure is its highest of 30.05inHg at 2 AM, a lowest point of 29.91inHg at 5 PM with an avg 29.99inHg.
Swarthmore, PA Weather – 9-27 – Overcast
69° / 55°
Overcast
Highs will reach 69°F with lows near 55°F in Swarthmore, where cloud-filled skies are. There might be light rainfall having a 14% chance. Wind will be moderate, blowing around 15mph on average and gusts of 25.9mph at 8 AM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 70% at 6 AM and 49% being its lowest at 1 PM. Barometric pressure is its highest of 29.92inHg at 12 AM, a lowest point of 29.82inHg at 4 PM with an avg 29.87inHg.
Swarthmore, PA Weather – 9-28 – Overcast
73° / 55°
Overcast
Cloud-filled skies are in the forecast for Swarthmore, with a high of 73°F and a low of 55°F. There's a very small chance of rainfall, only about 8%. Wind will be moderate, blowing around 11mph on average and gusts of 17mph at 8 PM. The humidity will be on the higher side, averaging about 64%, the maximum being 77% at 5 AM and 48% being its lowest at 2 PM. Barometric pressure is its highest of 30inHg at 11 PM, a lowest point of 29.87inHg at 4 AM with an avg 29.92inHg.
Swarthmore, PA Weather – 9-29 – Sunny
77° / 57°
Sunny
In Swarthmore, sunshine is likely with a high near 77°F and a low around 57°F. There's a very small chance of rainfall, only about 3%. Winds will be light at 7mph and gusts of 14.1mph at 11 PM. Humidity levels should be comfortable, sitting around 58% on average, the maximum being 79% at 5 AM and 37% being its lowest at 5 PM. Barometric pressure is its highest of 30.12inHg at 11 PM, a lowest point of 30.01inHg at 12 AM with an avg 30.07inHg.

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