ChescoWx

Below is the summer (June-July-August) temperature summary for 2026 and summer temperature history from 1871-1926. This was 33rd warmest summer but overall since 1895 there has been no statistically significant warming or cooling across both the raw and composite trend and only the NCEI adjusted averages indicate any significant summer warming.

Below is the summer (June-July-August) temperature summary for 2026 and summer temperature history from 1871-1926. This was 33rd warmest summer but overall since 1895 there has been no statistically significant warming or cooling across both the raw and composite trend and only the NCEI adjusted averages indicate any significant summer warming.

Below is the summer (June-July-August) temperature summary for 2026 and summer temperature history from 1871-1926. This was 33rd warmest summer but overall since 1895 there has been no statistically significant warming or cooling across both the raw and composite trend and only the NCEI adjusted averages indicate any significant summer warming.

Below is the Chester County area Climate Summary for August 2026. August finished just slightly above normal +0.6 degrees as the 52nd warmest and the 16th wettest since 1871. Through the 1st 8 months of 2026 we are running 0.7 degrees below normal temperature wise which is the 57th warmest over 151 years but only the 103rd warmest on a composite anomaly basis.

Below is the Chester County area Climate Summary for August 2026. August finished just slightly above normal +0.6 degrees as the 52nd warmest and the 16th wettest since 1871. Through the 1st 8 months of 2026 we are running 0.7 degrees below normal temperature wise which is the 57th warmest over 151 years but only the 103rd warmest on a composite anomaly basis.

After a very wet August across the area we start September with more shower chances over the first few days of the month. Today looks to be the warmest day and likely driest with highs ranging from the mid 80's here in East Nantmeal with some 90's possible in valley locations. Tomorrow will be a good 10 degrees cooler but also a better shot of some showers. With a cold front passing through we begin to trend cooler as we head into the Labor Day Weekend. High temperatures through the weekend looks to remain in the mid to upper 70's with overnight lows in the 50's.

After a very wet August across the area we start September with more shower chances over the first few days of the month. Today looks to be the warmest day and likely driest with highs ranging from the mid 80's here in East Nantmeal with some 90's possible in valley locations. Tomorrow will be a good 10 degrees cooler but also a better shot of some showers. With a cold front passing through we begin to trend cooler as we head into the Labor Day Weekend. High temperatures through the weekend looks to remain in the mid to upper 70's with overnight lows in the 50's.

Through it's first 9 days the ChescoWx forecast has been closer than the NWS point and click for EN.

Through it's first 9 days the ChescoWx forecast has been closer than the NWS point and click for EN.

Through it's first 9 days the ChescoWx forecast has been closer than the NWS point and click for EN.

Warm, humid with some showers possible for much of the week before we turn much cooler and clearer by the end of the work week and the start of Labor Day Weekend. The warmest day of the week looks to be tomorrow with highs well into the 80's. The best chance of rain will be tomorrow night into Wednesday.

Warm, humid with some showers possible for much of the week before we turn much cooler and clearer by the end of the work week and the start of Labor Day Weekend. The warmest day of the week looks to be tomorrow with highs well into the 80's. The best chance of rain will be tomorrow night into Wednesday.

From April through Yesterday most locations are not too far from normal rainfall for the spring and summer to date.

From April through Yesterday most locations are not too far from normal rainfall for the spring and summer to date.

We turn warmer and more humid today through much of the upcoming week with shower and thunderstorm chances each day. The best chances of any rain would be later this evening and again on Wednesday into Thursday. Our warmest day looks to be Tuesday with some lower valley locations possibly touching 90 degrees. We turn much cooler and drier for Labor Day Weekend.