Waterloo Mills, Pennsylvania Weather
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Click for Extreme Heat Warning for Waterloo Mills, Pennsylvania
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Weather Forecast for Waterloo Mills, Pennsylvania : Chester County
Issued: 1:23 pm EDT Jun 21, 2025 Latitude: 40.0231649 Longitude: -75.4207502 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Sunday Monday Tuesday Wednesday Thursday Friday
Mostly Sunny on This Afternoon Cloudy on Tonight Sunny on Sunday Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday 40% chance of thunderstorms on Thursday 40% chance of on Friday
High: 89°F Low: 72°F High: 94°F High: 98°F High: 99°F High: 96°F High: 91°F High: 85°F
Low: 77°F Low: 78°F Low: 77°F Low: 74°F Low: 71°F  
Mostly Sunny Cloudy Sunny Sunny Sunny Mostly Sunny Thunderstorms Partly Sunny
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Current Conditions at
PHILADELPHIA - (KPHL)
88°
Mostly Cloudy
as of 12:54 PM EDST
Rel. Humidity: 40%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
10 MPH
230° Southwest
Cloud Level(s): Few at 6000ft, Few at 14000ft, Broken at 25000ft
Current Conditions at
POTTSTOWN - (KPTW)
86°
Feels like 87°F
Mostly Clear
as of 12:54 PM EDST
Rel. Humidity: 48%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
7 MPH
Cloud Level(s): Few at 7000ft
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 89. Southwest wind around 5 mph.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 72. South wind around 5 mph.
Sunny on Sunday Sunday... Sunny, with a high near 94. Heat index values as high as 100. West wind 10 to 15 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 77. West wind 5 to 10 mph.
Sunny on Monday Monday... Sunny and hot, with a high near 98. Northwest wind around 5 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 78.
Sunny on Tuesday Tuesday... Sunny and hot, with a high near 99.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 77.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 96.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 74.
40% chance of thunderstorms Thursday Thursday... A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
40% chance of thunderstorms Thursday Night Thursday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
40% chance of Friday Friday... A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Sun Almanac for Waterloo Mills, Pennsylvania
Sunrise: 05:33 AM
Sunset: 8:34 PM
Civil Sunrise:05:00 AM
Civil Sunset: 9:07 PM
Nautical Sunrise: 04:18 AM
Nautical Sunset: 9:49 PM
Astro Sunrise: 03:30 AM
Astro Sunset: 10:38 PM
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