ChescoWx

Our beautiful autumnal weather continues with temperatures warming to a few degrees above normal both today and tomorrow with Highs not far from 80 degrees. We then start a sharp cooling trend over the weekend and into the new work week with temperatures by next week according to the ChescoWx forecast only in the low to mid 60's by the start of next week. The NWS forecast has those days about 10 degrees warmer – let’s see who is closer. Rain chances ramp up by late Saturday night into Sunday and Monday.

Below is a snapshot of both the raw actual annual average temperatures and the NCEI adjusted for Chester County PA over the last 10 years from 2016-2025. Both trend lines show a cooling period is underway but neither line is statistically significant. Could this indeed be the start of our next cooling cycle in our never ending cycle of climate change?

Thanks Mike!!

Plenty of 40's for lows this AM across the area with our overall chilliest morning since back on June 2nd. The coldest reading was the 42.7 at Warwick DEOS. Below normal temperatures look to continue today before we start a warming trend that peaks on Thursday before we turn cooler again for the weekend and looking ahead we see some unseasonably chilly air by early next week. Highs may not get to far above 60 degrees for some of the higher spots by next Tuesday. Our next rain chances hold off till Sunday.

Plenty of 40's for lows this AM across the area with our overall chilliest morning since back on June 2nd. The coldest reading was the 42.7 at Warwick DEOS. Below normal temperatures look to continue today before we start a warming trend that peaks on Thursday before we turn cooler again for the weekend and looking ahead we see some unseasonably chilly air by early next week. Highs may not get to far above 60 degrees for some of the higher spots by next Tuesday. Our next rain chances hold off till Sunday.

Thanks to requests I have one more add to the chescowx.com website. It now includes a current weather tab with current conditions at East Nantmeal along with the current 10-day East Nantmeal ChescoWx forecast system and a forecast verification scoring comparison to the current National Weather Service forecast. Along with a breakdown of models used by % for the ChescoWx forecast. Of note ChescoWx has been scored better on 13 of the first 14 days of review to date. https://chescowx.com/current-weather/

Thanks to requests I have one more add to the chescowx.com website. It now includes a current weather tab with current conditions at East Nantmeal along with the current 10-day East Nantmeal ChescoWx forecast system and a forecast verification scoring comparison to the current National Weather Service forecast. Along with a breakdown of models used by % for the ChescoWx forecast. Of note ChescoWx has been scored better on 13 of the first 14 days of review to date. https://chescowx.com/current-weather/

Our chilliest spots like Warwick Township reached the 40's (49.7) for a low this morning. We should rebound to near normal temperatures for Early September with highs not far from 80 degrees with continued low humidity. Tomorrow looks to be our warmest day of the week with 80's for most spots. We turn wetter on Thursday and cooler to close out the work week.

Our chilliest spots like Warwick Township reached the 40's (49.7) for a low this morning. We should rebound to near normal temperatures for Early September with highs not far from 80 degrees with continued low humidity. Tomorrow looks to be our warmest day of the week with 80's for most spots. We turn wetter on Thursday and cooler to close out the work week.

With now 2 weeks of forecasts in the books the ChescoWx model has performed a bit better than the official NWS forecast every day for my backyard here in East Nantmeal Township.

With now 2 weeks of forecasts in the books the ChescoWx model has performed a bit better than the official NWS forecast every day for my backyard here in East Nantmeal Township.

Hello all. The ChescoWx website https://chescowx.com has had a major overhaul and it is now live! Everything is interactive now. You can pull up climate trends unique to the Philly burbs of Chester County PA for any measure, look at a single station or the whole county, and compare us against Philadelphia, Reading, or Allentown airports. There are all time records, decade summaries and climate trending options going back to the 1870's, top snowstorms, snow by season and even a White Christmas history. Every trend also tells you whether that trend is statistically significant or simply weather noise. Behind the enhanced website sits 42 Chester County area stations and more than 458,000 daily observations going back to 1871. Take a look and let me know what you think and what we are missing you would like to see or be able to view interactively. Thanks! Paul

Hello all. The ChescoWx website https://chescowx.com has had a major overhaul and it is now live! Everything is interactive now. You can pull up climate trends unique to the Philly burbs of Chester County PA for any measure, look at a single station or the whole county, and compare us against Philadelphia, Reading, or Allentown airports. There are all time records, decade summaries and climate trending options going back to the 1870's, top snowstorms, snow by season and even a White Christmas history. Every trend also tells you whether that trend is statistically significant or simply weather noise. Behind the enhanced website sits 42 Chester County area stations and more than 458,000 daily observations going back to 1871. Take a look and let me know what you think and what we are missing you would like to see or be able to view interactively. Thanks! Paul