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

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

Muir Army Air Field / Indiantown (KMUI)

Lat: 40.44°NLon: 76.56°WElev: 476ft.

A Few Clouds

84°F

29°C

Humidity 50%
Wind Speed S 6 mph
Barometer 29.86 in (1011.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 1 Aug 6:55 pm EDT
Extended Forecast for

Mount Aetna PA

  • Tonight

    Tonight: A slight chance of showers between 3am and 4am. Mostly cloudy, with a low around 68. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 68 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 83. South wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms, mainly before 2am, then showers likely and possibly a thunderstorm after 3am. Low around 70. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Low: 70 °F

    Showers

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 70%.

    High: 84 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely then
    Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers between 3am and 4am. Mostly cloudy, with a low around 68. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 83. South wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms, mainly before 2am, then showers likely and possibly a thunderstorm after 3am. Low around 70. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Monday
Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Wednesday
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Aetna PA
 40.46°N 76.28°W (Elev. 499 ft)
Last Update:
5:33 pm EDT Aug 1, 2026
Forecast Valid:
7pm EDT Aug 1, 2026-6pm EDT Aug 8, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation