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Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Hazardous Weather Conditions

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Light Rain

72°F

22°C

Humidity 83%
Wind Speed SW 6 mph
Barometer 29.69 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 18 Jun 6:47 am EDT
Extended Forecast for

Walkersville MD

  • Today

    Today: Showers likely, with thunderstorms also possible after 11am. Partly sunny, with a high near 91. Breezy, with a west wind 13 to 23 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Breezy.
    Showers
    Likely then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Increasing clouds, with a low around 66. West wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 20 mph.

    Low: 66 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Mostly cloudy, then gradually becoming sunny, with a high near 83. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 83 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83. West wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 83. Chance of precipitation is 80%.

    High: 83 °F

    Showers

Detailed Forecast

Today
Showers likely, with thunderstorms also possible after 11am. Partly sunny, with a high near 91. Breezy, with a west wind 13 to 23 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Increasing clouds, with a low around 66. West wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 20 mph.
Juneteenth
Mostly cloudy, then gradually becoming sunny, with a high near 83. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Friday Night
Mostly clear, with a low around 61. Northwest wind 5 to 8 mph becoming calm in the evening.
Saturday
Sunny, with a high near 83. West wind 5 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 83. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 61. Chance of precipitation is 80%.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Walkersville MD
 39.48°N 77.36°W (Elev. 299 ft)
Last Update:
4:53 am EDT Jun 18, 2026
Forecast Valid:
7am EDT Jun 18, 2026-6pm EDT Jun 24, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation