Nearby Harbors
39.1850’ N, 75.4000’ W

Port Mahon, DE

78°
H -°
L 67°
SE
10mph
Low tide
8:33 pm

Port Mahon, DE Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Wed
Sep 16 		Mostly Clear
Close Hourly 		-º / 67º 5% S 10 mph 78%
5pm Sunny 78º 1% SE 10 mph 65%
6pm Sunny 77º 1% SE 10 mph 68%
7pm Sunny 75º 2% SSE 8 mph 73%
8pm Clear 73º 2% S 7 mph 75%
9pm Clear 72º 2% S 6 mph 77%
10pm Clear 70º 2% SSW 5 mph 80%
11pm Clear 70º 2% SSW 5 mph 82%
Thu
Sep 17 		Partly Cloudy
View Hourly 		84º / 71º 16% S 9 mph 70%
12am Clear 69º 5% SSW 4 mph 82%
1am Mostly Clear 69º 5% SSW 4 mph 81%
2am Partly Cloudy 69º 5% SSW 4 mph 82%
3am Partly Cloudy 68º 5% SSW 4 mph 83%
4am Partly Cloudy 68º 6% SSW 4 mph 84%
5am Partly Cloudy 68º 6% SSW 4 mph 85%
6am Mostly Cloudy 68º 6% SSW 4 mph 86%
7am Partly Cloudy 68º 6% SSW 4 mph 87%
8am Partly Cloudy 70º 10% SSW 5 mph 84%
9am Mostly Cloudy 73º 16% SSW 6 mph 79%
10am Mostly Cloudy 75º 11% SSW 7 mph 75%
11am Partly Cloudy 77º 3% S 8 mph 71%
12pm Mostly Sunny 79º 2% S 8 mph 67%
1pm Partly Cloudy 81º 1% S 8 mph 63%
2pm Partly Cloudy 82º 0% S 9 mph 61%
3pm Partly Cloudy 82º 0% SSE 9 mph 61%
4pm Partly Cloudy 82º 1% S 9 mph 62%
5pm Partly Cloudy 82º 1% S 9 mph 61%
6pm Partly Cloudy 81º 1% S 8 mph 64%
7pm Partly Cloudy 79º 2% SSW 7 mph 67%
8pm Partly Cloudy 77º 15% SSW 6 mph 72%
9pm Mostly Cloudy 75º 15% SSW 7 mph 74%
10pm Mostly Cloudy 74º 15% SSW 8 mph 77%
11pm Cloudy 74º 15% SSW 6 mph 79%
Fri
Sep 18 		Mostly Sunny
View Hourly 		84º / 65º 15% N 10 mph 68%
12am Cloudy 73º 24% SSW 7 mph 82%
1am Cloudy 73º 20% SSW 6 mph 83%
2am Mostly Cloudy 73º 15% SSW 6 mph 85%
3am Partly Cloudy 73º 15% SW 6 mph 87%
4am Mostly Cloudy 73º 15% WSW 5 mph 90%
5am Cloudy 73º 15% W 5 mph 91%
6am Partly Cloudy 72º 9% NW 5 mph 93%
7am Partly Cloudy 72º 10% NNW 6 mph 94%
8am Partly Cloudy 73º 15% NNW 7 mph 91%
9am Partly Cloudy 75º 15% N 9 mph 83%
10am Partly Cloudy 77º 15% N 10 mph 76%
11am Partly Cloudy 79º 15% N 10 mph 70%
12pm Partly Cloudy 80º 15% N 10 mph 64%
1pm Partly Cloudy 81º 15% N 9 mph 60%
2pm Sunny 82º 0% N 9 mph 56%
3pm Sunny 83º 0% N 9 mph 54%
4pm Mostly Sunny 83º 0% N 9 mph 53%
Sat
Sep 19 		Partly Cloudy 76º / 68º 3% E 11 mph 66%
Sun
Sep 20 		PM Showers 81º / 66º 52% SSW 13 mph 73%
Mon
Sep 21 		Showers 71º / 62º 35% NE 12 mph 81%
Tue
Sep 22 		AM Showers 68º / 60º 40% ENE 16 mph 82%
Wed
Sep 23 		Showers 68º / 62º 43% ENE 16 mph 85%

Weather Radar for Port Mahon, DE See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Port Mahon, DE

This Afternoon
High : 78ºF
SSE wind 5 to 10 kt. Sunny. Waves 1 ft or less.
Tonight
Low : 69ºF
S wind 5 to 10 kt becoming SSW after midnight. Partly cloudy. Waves around 1 ft.
Thursday
High : 82ºF
Variable winds 5 kt or less. Mostly sunny. Waves around 1 ft.
Thursday Night
Low : 72ºF
S wind 5 to 10 kt becoming SW after midnight. A slight chance of showers. Waves around 1 ft.
Friday
High : 81ºF
N wind 5 to 10 kt. Mostly sunny. Waves around 1 ft.
Friday Night
Low : 67ºF
NE wind around 10 kt. Partly cloudy. Waves around 1 ft.
Saturday
High : 74ºF
NE wind around 10 kt becoming ESE in the afternoon. Mostly sunny. Waves around 1 ft.
Saturday Night
Low : 69ºF
ESE wind around 10 kt becoming SSE after midnight. Partly cloudy. Waves 1 to 2 ft.
Sunday
High : 78ºF
S wind around 10 kt. A chance of showers. Waves around 1 ft.

NOAA Buoy Data Near Port Mahon, DE See Map

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    Wind Speed Forecast for Port Mahon, DE

    WednesdayThursdayFriday
    Wind Speed (MPH) 1064468976599
    9pm1am5am9am1pm5pm9pm1am5am9am1pm5pm
    MPH 1064468976599
    DIR SESSSWSSWSSWSSSSWSSWWNN

    Current Weather Conditions In Port Mahon, DE

    As Of: 13 minutes ago

    • 78ºF
    • 78ºF
    • 10mph
    • 0º (SE)
    • 10mph
    • Sunny
    • 10mi
    • 30.29"
    • 65%
    • 0ºF

    The weather right now in Port Mahon, DE is Sunny. The current temperature is 78°F, and the expected high and low for today, Wednesday, September 16, 2026, are -° high temperature and 67°F low temperature. The wind is currently blowing at 10 miles per hour, and coming from the Southeast. The wind is gusting to 10 mph. With the wind and the atmosphere the temperature feels like 78° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 65 percent, and air pressure at 30.29 in. Visibility is 10 nautical miles. There are no current weather alert(s).

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