National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Overcast

27°F

-3°C

Humidity 73%
Wind Speed NW 18 mph
Barometer 29.89 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 24 Feb 2:35 am EST
Extended Forecast for

Saint Peters PA

  • Overnight

    Overnight: Areas of blowing snow. Partly cloudy, with a low around 17. Northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 17 °F

    Areas Blowing
    Snow

  • Tuesday

    Tuesday: Areas of blowing snow before 3pm. Sunny, with a high near 27. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 27 °F

    Areas Blowing
    Snow

  • Tuesday Night

    Tuesday Night: Snow likely after 1am. Increasing clouds, with a low around 20. Light southwest wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 20 °F

    Partly Cloudy
    then Snow
    Likely

  • Wednesday

    Wednesday: A chance of snow before 10am, then a chance of rain between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 44. Southwest wind 10 to 15 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28. West wind around 5 mph.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of snow before 10am, then rain and snow likely. Mostly cloudy, with a high near 39. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 39 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Rain and snow likely, mainly before 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.

    Low: 26 °F

    Rain/Snow
    Likely

  • Friday

    Friday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Overnight
Areas of blowing snow. Partly cloudy, with a low around 17. Northwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday
Areas of blowing snow before 3pm. Sunny, with a high near 27. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Snow likely after 1am. Increasing clouds, with a low around 20. Light southwest wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday
A chance of snow before 10am, then a chance of rain between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 44. Southwest wind 10 to 15 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around 28. West wind around 5 mph.
Thursday
A chance of snow before 10am, then rain and snow likely. Mostly cloudy, with a high near 39. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain and snow likely, mainly before 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 41.
Friday Night
Mostly clear, with a low around 25.
Saturday
Sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Partly sunny, with a high near 43.
Sunday Night
Mostly cloudy, with a low around 22.
Monday
A chance of snow. Mostly cloudy, with a high near 32. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Peters PA
 40.12°N 75.82°W (Elev. 600 ft)
Last Update:
4:58 pm EST Feb 23, 2026
Forecast Valid:
2am EST Feb 24, 2026-6pm EST Mar 2, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation