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

Muir Army Air Field / Indiantown (KMUI)

Lat: 40.44°NLon: 76.56°WElev: 476ft.

Overcast

62°F

17°C

Humidity 81%
Wind Speed Calm
Barometer 29.97 in (1014.9 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 22 Jun 2:55 am EDT
Extended Forecast for

Myerstown PA

  • Overnight

    Overnight: Cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Cloudy

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Some of the storms could be severe and produce heavy rainfall. High near 78. East wind 7 to 9 mph becoming south in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 78 °F

    Chance
    Showers then
    Severe
    Thunderstorms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 2am, then a chance of showers after 2am. Some of the storms could be severe and produce heavy rainfall. Low around 63. South wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Severe
    Thunderstorms
    then Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 79 °F

    Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. Northwest wind 5 to 7 mph.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 50%.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.

    Low: 63 °F

    Showers
    Likely

Detailed Forecast

Overnight
Cloudy, with a low around 62. Calm wind.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Some of the storms could be severe and produce heavy rainfall. High near 78. East wind 7 to 9 mph becoming south in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 2am, then a chance of showers after 2am. Some of the storms could be severe and produce heavy rainfall. Low around 63. South wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Mostly clear, with a low around 57. Northwest wind 5 to 7 mph.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Myerstown PA
 40.37°N 76.3°W (Elev. 499 ft)
Last Update:
2:41 am EDT Jun 22, 2026
Forecast Valid:
3am EDT Jun 22, 2026-6pm EDT Jun 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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