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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Baltimore / Martin (KMTN)

Lat: 39.33°NLon: 76.42°WElev: 23ft.

Mostly Cloudy

77°F

25°C

Humidity 79%
Wind Speed S 6 mph
Barometer 29.98 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Sep 11:45 am EDT
Extended Forecast for

Joppa MDSimilar City Names

  • This Afternoon

    This Afternoon: Scattered showers before 2pm, then scattered showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 79. Southwest wind 11 to 13 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before 1am, then a chance of showers between 1am and 2am. Mostly cloudy, with a low around 62. Northwest wind 5 to 9 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: A chance of showers between 2pm and 5pm. Increasing clouds, with a high near 72. North wind 9 to 11 mph. Chance of precipitation is 30%.

    High: 72 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly after 8pm. Cloudy, with a low around 56. Northeast wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 56 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely. Cloudy, with a high near 65. Northeast wind 13 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    High: 65 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers. Cloudy, with a low around 53. Chance of precipitation is 50%.

    Low: 53 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 50%.

    High: 64 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.

    High: 64 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Scattered showers before 2pm, then scattered showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 79. Southwest wind 11 to 13 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 1am, then a chance of showers between 1am and 2am. Mostly cloudy, with a low around 62. Northwest wind 5 to 9 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers between 2pm and 5pm. Increasing clouds, with a high near 72. North wind 9 to 11 mph. Chance of precipitation is 30%.
Monday Night
Showers likely, mainly after 8pm. Cloudy, with a low around 56. Northeast wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers likely. Cloudy, with a high near 65. Northeast wind 13 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Tuesday Night
A chance of showers. Cloudy, with a low around 53. Chance of precipitation is 50%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Thursday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 20%.
Friday
A slight chance of showers. Partly sunny, with a high near 66. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Joppa MDSimilar City Names
 39.44°N 76.35°W (Elev. 135 ft)
Last Update:
10:53 am EDT Sep 20, 2026
Forecast Valid:
12pm EDT Sep 20, 2026-6pm EDT Sep 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation