
Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.
Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >
Hazardous Weather Conditions
Current conditions at
Baltimore / Martin (KMTN)
Lat: 39.33°NLon: 76.42°WElev: 23ft.
Fair
69°F
21°C
| Humidity | 91% |
| Wind Speed | Calm |
| Barometer | 30.12 in |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 19 May 4:35 am EDT |
Extended Forecast for
2 Miles SW Glen Arm MD
Today

High: 95 °F
Mostly Sunny
Tonight

Low: 71 °F
Partly Cloudy
Wednesday
High: 93 °F
Sunny then
ShowersWednesday Night

Low: 57 °F
Showers
LikelyThursday

High: 67 °F
Showers
LikelyThursday Night

Low: 52 °F
Chance
ShowersFriday

High: 63 °F
Showers
Friday Night

Low: 50 °F
Showers
Saturday

High: 67 °F
Showers
Detailed Forecast
Today
Mostly sunny, with a high near 95. West wind 3 to 8 mph.
Tonight
Partly cloudy, with a low around 71. Southwest wind 3 to 5 mph.
Wednesday
A chance of showers and thunderstorms before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 93. Light west wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms, then showers likely after 8pm. Mostly cloudy, with a low around 57. Northwest wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 67. North wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Thursday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Friday
Showers, mainly after 8am. High near 63. Chance of precipitation is 80%.
Friday Night
Showers. Low around 50. Chance of precipitation is 90%.
Saturday
Showers. High near 67. Chance of precipitation is 80%.
Saturday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Sunday
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 75. Chance of precipitation is 30%.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
2 Miles SW Glen Arm MD
39.44°N 76.53°W (Elev. 312 ft)
39.44°N 76.53°W (Elev. 312 ft)
2:23 am EDT May 19, 2026
4am EDT May 19, 2026-6pm EDT May 25, 2026



