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

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Mostly Cloudy

58°F

14°C

Humidity 87%
Wind Speed S 5 mph
Barometer 29.56 in (1000.9 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 12 Mar 4:51 am EDT
Extended Forecast for

New Castle DE

  • Overnight

    Overnight: A slight chance of showers. Mostly cloudy, with a steady temperature around 64. Southwest wind around 15 mph. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Rain before 2pm, then rain and snow. Temperature falling to around 36 by 2pm. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 52 °F⇓

    Breezy. Rain
    then
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow before 7pm, then a slight chance of snow between 7pm and 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 31. West wind 5 to 10 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Mostly sunny, with a high near 50. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 50 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. South wind 10 to 15 mph.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Chance Rain
    then Rain

Detailed Forecast

Overnight
A slight chance of showers. Mostly cloudy, with a steady temperature around 64. Southwest wind around 15 mph. Chance of precipitation is 20%.
Thursday
Rain before 2pm, then rain and snow. Temperature falling to around 36 by 2pm. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday Night
A chance of rain and snow before 7pm, then a slight chance of snow between 7pm and 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 31. West wind 5 to 10 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Friday
Mostly sunny, with a high near 50. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Mostly clear, with a low around 42. South wind 10 to 15 mph.
Saturday
Mostly sunny, with a high near 53.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Mostly cloudy, with a high near 55.
Sunday Night
Rain, mainly after 2am. Low around 51. Chance of precipitation is 80%.
Monday
Rain. High near 66. Chance of precipitation is 90%.
Monday Night
A chance of rain. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Partly cloudy, with a low around 25.
Wednesday
Sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Castle DE
 39.67°N 75.56°W (Elev. 3 ft)
Last Update:
4:09 am EDT Mar 12, 2026
Forecast Valid:
4am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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