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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Light Rain Fog/Mist

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 29.70 in
Dewpoint 63°F (17°C)
Visibility 2.50 mi
Last update 12 Oct 4:35 am EDT
Extended Forecast for

Port Republic MD

  • Overnight

    Overnight: Showers. Low around 62. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Showers

  • Columbus Day

    Columbus Day: Showers, mainly before 8am. High near 73. North wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °F

    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. Light west wind.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80. South wind 3 to 8 mph.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 64. Southwest wind around 7 mph.

    Low: 64 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 20%.

    High: 71 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 20%.

    Low: 61 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Showers. Low around 62. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Columbus Day
Showers, mainly before 8am. High near 73. North wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 57. Light west wind.
Tuesday
Sunny, with a high near 80. South wind 3 to 8 mph.
Tuesday Night
Clear, with a low around 64. Southwest wind around 7 mph.
Wednesday
Sunny, with a high near 85.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 20%.
Thursday
A slight chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 20%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 48. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 57. Breezy.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Republic MD
 38.5°N 76.55°W (Elev. 148 ft)
Last Update:
2:24 am EDT Oct 12, 2026
Forecast Valid:
4am EDT Oct 12, 2026-6pm EDT Oct 18, 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