Widespread Summer Heat; Enhanced Severe Weather

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, south-central Plains, Mid to Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, an enhanced risk of organized severe thunderstorms is possible from Iowa to Illinois and Indiana. Read More >

Hazardous Weather Conditions

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Partly Cloudy

91°F

33°C

Humidity 49%
Wind Speed SW 5 mph
Barometer 30.11 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 20 Aug 12:47 pm EDT
Extended Forecast for

4 Miles SW Ijamsville MD

  • This
    Afternoon

    This Afternoon: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm.  Mostly cloudy, with a high near 91. Southeast wind around 5 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    High: 91 °F

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am.  Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 70. South wind around 5 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely then
    Chance
    Showers and
    Patchy Fog

    Low: 70 °F

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am.  Patchy fog before 8am.  Otherwise, partly sunny, with a high near 90. South wind 5 to 8 mph.  Chance of precipitation is 50%.

    Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

    High: 90 °F

  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 72. Southwest wind around 6 mph.  Chance of precipitation is 30%.

    Chance
    T-storms

    Low: 72 °F

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 8am.  Partly sunny, with a high near 89. West wind 3 to 7 mph.  Chance of precipitation is 50%.

    Chance
    Showers then
    Chance
    T-storms

    High: 89 °F

  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 64. Chance of precipitation is 50%.

    Chance
    T-storms then
    Chance
    Showers

    Low: 64 °F

  • Friday

    Friday: A chance of showers and thunderstorms.  Partly sunny, with a high near 79. Chance of precipitation is 40%.

    Chance
    T-storms

    High: 79 °F

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 60. Chance of precipitation is 30%.

    Chance
    T-storms

    Low: 60 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 79.

    Mostly Sunny

    High: 79 °F

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 91. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 70. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Patchy fog before 8am. Otherwise, partly sunny, with a high near 90. South wind 5 to 8 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Southwest wind around 6 mph. Chance of precipitation is 30%.
Thursday
A chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 89. West wind 3 to 7 mph. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 81.
Click Map For Forecast
Point Forecast:
4 Miles SW Ijamsville MD
 39.28°N 77.36°W (Elev. 400 ft)
10:31 am EDT Aug 20, 2019
1pm EDT Aug 20, 2019-6pm EDT Aug 26, 2019
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database