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Chester County, PA Weather Tomorrow

From tomorrow through the next 5 days, stay updated on Chester County weather with 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 Chester County area.
Updated: Thu Nov 12th 2026 2:30 PM EST
Chester County, PA Weather – 11-12 – Light Rain Shower
56° / 48°
Light Rain Shower
Daytime highs will reach 56°F with lows dropping to 48°F in Chester County, where periods of rain are likely. The chance of rain is 88% with an estimated 0.43in. Winds will be light at 9mph and gusts of 19.6mph at 11 PM. High humidity with average of 86% is anticipated, the maximum being 97% at 7 PM and 90% being its lowest at 3 PM. Barometric pressure is its highest of 29.42inHg at 11 PM, a lowest point of 29.38inHg at 4 PM with an avg 29.4inHg.
Chester County, PA Weather – 11-13 – Light Drizzle
47° / 37°

Weather Tomorrow

Light Drizzle
In Chester County, light Drizzle is likely with a high near 47°F and a low around 37°F. The chance of rain is 94% with an estimated 0.4in. Wind will be moderate, blowing around 13mph on average and gusts of 23.8mph at 4 AM. High humidity with average of 94% is anticipated, the maximum being 97% at 8 AM and 78% being its lowest at 11 PM. Barometric pressure is its highest of 29.78inHg at 10 PM, a lowest point of 29.42inHg at 12 AM with an avg 29.61inHg.
Chester County, PA Weather – 11-14 – Partly Cloudy
44° / 33°
Partly Cloudy
Chester County is set for overcast conditions with temperatures peaking at 44°F and dipping to 33°F. There might be light rainfall having a 12% chance with an estimated 0in. Snow is likely with a 13% chance. Wind will be moderate, blowing around 15mph on average and gusts of 24.8mph at 4 PM. The humidity will be on the higher side, averaging about 71%, the maximum being 85% at 7 AM and 47% being its lowest at 1 PM. Barometric pressure is its highest of 30inHg at 11 PM, a lowest point of 29.78inHg at 12 AM with an avg 29.88inHg.
Chester County, PA Weather – 11-15 – Sunny
47° / 37°
Sunny
Highs will reach 47°F with lows near 37°F in Chester County, where a sunny day is. There's a very small chance of rainfall, only about 9%. Wind will be moderate, blowing around 14mph on average and gusts of 26.4mph at 10 AM. The humidity will be on the higher side, averaging about 69%, the maximum being 85% at 3 AM and 51% being its lowest at 1 PM. Barometric pressure is its highest of 30.33inHg at 11 PM, a lowest point of 30.01inHg at 12 AM with an avg 30.16inHg.
Chester County, PA Weather – 11-16 – Sunny
48° / 35°
Sunny
Chester County may see sunshine, with daytime highs of 48°F and overnight lows near 35°F. There's a very small chance of rainfall, only about 8%. Wind will be moderate, blowing around 11mph on average and gusts of 22.5mph at 2 AM. The humidity will be on the higher side, averaging about 73%, the maximum being 86% at 7 AM and 53% being its lowest at 2 PM. Barometric pressure is its highest of 30.48inHg at 10 PM, a lowest point of 30.34inHg at 12 AM with an avg 30.43inHg.
Chester County, PA Weather – 11-17 – Sunny
52° / 33°
Sunny
Chester County may see sunshine, with daytime highs of 52°F and overnight lows near 33°F. There's a very small chance of rainfall, only about 8%. Winds will be light at 7mph and gusts of 14.3mph at 10 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 88% at 7 AM and 52% being its lowest at 1 PM. Barometric pressure is its highest of 30.52inHg at 8 AM, a lowest point of 30.43inHg at 4 PM with an avg 30.47inHg.

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