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

Reading, Reading Regional Airport (KRDG)

Lat: 40.37°NLon: 75.96°WElev: 344ft.

Fair

78°F

26°C

Humidity 64%
Wind Speed W 12 mph
Barometer 29.91 in (1012.9 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 14 Oct 12:54 pm EDT
Extended Forecast for

Mertztown PA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 79. West wind around 10 mph, with gusts as high as 20 mph.

    High: 79 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 53. North wind around 10 mph.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 66. North wind around 5 mph becoming east in the afternoon.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers, mainly after 2am. Low around 54. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Slight Chance
    Showers then
    Showers

  • Friday

    Friday: Showers, mainly after 2pm. High near 74. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 74 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers, mainly before 8pm. Low around 43. Windy. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Showers and
    Breezy then
    Slight Chance
    Showers and
    Windy

  • Saturday

    Saturday: Sunny, with a high near 50. Breezy.

    High: 50 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Patchy frost. Otherwise, clear, with a low around 35.

    Low: 35 °F

    Patchy Frost

  • Sunday

    Sunday: Patchy frost before 9am. Otherwise, sunny, with a high near 58.

    High: 58 °F

    Patchy Frost
    then Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 79. West wind around 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 53. North wind around 10 mph.
Thursday
Sunny, with a high near 66. North wind around 5 mph becoming east in the afternoon.
Thursday Night
Showers, mainly after 2am. Low around 54. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers, mainly after 2pm. High near 74. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers, mainly before 8pm. Low around 43. Windy. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 50. Breezy.
Saturday Night
Patchy frost. Otherwise, clear, with a low around 35.
Sunday
Patchy frost before 9am. Otherwise, sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 63.
Monday Night
Mostly cloudy, with a low around 44.
Tuesday
Partly sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mertztown PA
 40.48°N 75.7°W (Elev. 768 ft)
Last Update:
4:09 am EDT Oct 14, 2026
Forecast Valid:
1pm EDT Oct 14, 2026-6pm EDT Oct 20, 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