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Nassau, DE Weather Forecast
Nassau, DE Weather Forecast Dated: 428 PM Thu Sep 17 2026
Expect a mild stretch with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.
Thursday, September 17, 2026
Mid-Morning
73°F 23°C
Sunny
Mid-Afternoon
88°F 31°C
Overcast
Early-Evening
77°F 25°C
Partly Cloudy
Warm and summery around 88°F 31°C (feels like 91°F 33°C), sunny in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds turning from the SSW to the S at 9 mph 15 km/h.
Friday, September 18, 2026
Mid-Morning
75°F 24°C
Sunny
Mid-Afternoon
85°F 29°C
Sunny
Early-Evening
78°F 25°C
Sunny
Balmy with temperatures reaching 85°F 29°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the NNW to the NNE at 7 mph 11 km/h.
Saturday, September 19, 2026
Mid-Morning
71°F 22°C
Overcast
Mid-Afternoon
73°F 23°C
Scattered Showers
Early-Evening
70°F 21°C
Partly Cloudy
Enjoyable around 73°F 23°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the ENE to the ESE at 10 mph 16 km/h.
Sunday, September 20, 2026
Mid-Morning
72°F 22°C
Overcast
Mid-Afternoon
83°F 28°C
Scattered Showers
Early-Evening
77°F 25°C
Scattered Showers
Warm and summery around 83°F 28°C (feels like 86°F 30°C), periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling. Winds swinging from the SSE to the SSW at 8 mph 13 km/h.
Monday, September 21, 2026
Mid-Morning
63°F 17°C
Light Showers
Mid-Afternoon
72°F 22°C
Scattered Showers
Early-Evening
71°F 22°C
Scattered Showers
Mild with a high of 72°F 22°C, scattered downpours possible, with steady humidity and steady pressure. Winds shifting from the NE to the ENE at 15 mph 24 km/h. Gusts up to 23 mph 36 km/h.
Tuesday, September 22, 2026
Mid-Morning
72°F 22°C
Light Showers
Mid-Afternoon
73°F 23°C
Light Showers
Early-Evening
72°F 22°C
Light Showers
Pleasant near 73°F 23°C, on-and-off showers throughout the day, with steady humidity and steady pressure. Winds decreasing from ESE 15 mph 24 km/h to E 7 mph 11 km/h.
Wednesday, September 23, 2026
Mid-Morning
74°F 23°C
Scattered Showers
Mid-Afternoon
76°F 24°C
Scattered Showers
Early-Evening
71°F 22°C
Scattered Showers
Comfortable with temperatures reaching 76°F 24°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the ENE to the WSW at 8 mph 12 km/h.
Thursday, September 24, 2026
Mid-Morning
72°F 22°C
Cloudy
Mid-Afternoon
78°F 25°C
Light Showers
Early-Evening
72°F 23°C
Light Showers
Enjoyable around 78°F 25°C, clouds and showers taking over for the afternoon and evening, with steady humidity and barometric pressure falling. Winds building from E at 3 mph 5 km/h to SW at 11 mph 18 km/h. Gusts up to 25 mph 40 km/h.
Friday, September 25, 2026
Mid-Morning
61°F 16°C
Sunny
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
64°F 17°C
Partly Cloudy
Mild temperatures up to 70°F 21°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds swinging from the W to the NW at 10 mph 15 km/h. Gusts up to 21 mph 34 km/h.
Saturday, September 26, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
67°F 19°C
Sunny
Early-Evening
60°F 15°C
Sunny
Mildly cool near 67°F 19°C, sunny throughout the day, with lower humidity and steady pressure. Winds out of the NNW at 13 mph 21 km/h.
Sunday, September 27, 2026
Mid-Morning
57°F 14°C
Sunny
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
62°F 17°C
Sunny
Pleasant near 70°F 21°C, sunny throughout the day, with steady humidity and steady pressure.
Monday, September 28, 2026
Mid-Morning
61°F 16°C
Sunny
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
65°F 18°C
Sunny
Comfortable with temperatures reaching 75°F 24°C, sunny throughout the day, with steady humidity and barometric pressure falling.
Tuesday, September 29, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
78°F 25°C
Cloudy
Early-Evening
68°F 20°C
Sunny
Enjoyable around 78°F 25°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure.
Wednesday, September 30, 2026
Mid-Morning
67°F 19°C
Overcast
Mid-Afternoon
80°F 27°C
Overcast
Early-Evening
71°F 22°C
Cloudy
Warm temperatures up to 80°F 27°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure.
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