Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

College Park Airport (KCGS)

Lat: 38.98°NLon: 76.92°WElev: 49ft.

Fair

72°F

22°C

Humidity 77%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 4 Aug 7:15 am EDT
Extended Forecast for

Chillum MD

  • Today

    Today: Partly sunny, with a high near 87. East wind 5 to 7 mph.

    High: 87 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely after 5am.  Mostly cloudy, with a low around 71. East wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Mostly Cloudy
    then Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm 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 87. Light and variable wind becoming south 5 to 7 mph in the morning.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 73. South wind 3 to 5 mph.  Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 92. South wind 7 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Partly cloudy, with a low around 75. Chance of precipitation is 20%.

    Low: 75 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 92. Chance of precipitation is 40%.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 73. Chance of precipitation is 50%.

    Low: 73 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 91. Chance of precipitation is 60%.

    High: 91 °F

    Mostly Sunny
    then Showers
    Likely

Detailed Forecast

Today
Partly sunny, with a high near 87. East wind 5 to 7 mph.
Tonight
A chance of showers and thunderstorms, then showers likely after 5am. Mostly cloudy, with a low around 71. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely and possibly a thunderstorm 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 87. Light and variable wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 73. South wind 3 to 5 mph. Chance of precipitation is 30%.
Thursday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 75. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 50%.
Saturday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 60%.
Saturday 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 72. Chance of precipitation is 60%.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 74.
Monday
Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Chillum MD
 38.97°N 76.98°W (Elev. 92 ft)
4:53 am EDT Aug 4, 2026
7am EDT Aug 4, 2026-6pm EDT Aug 10, 2026
 
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Additional Resources

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