New Castle Airport Weather Forecast
- 76
- 89
Rain Showers Likely
- 76
- 93
Chance Thunderstorms
- 70
- 86
Partly Sunny
- 73
- 86
Rain Showers Likely
- 70
- 88
Chance Thunderstorms
- 68
- 85
Partly Sunny
- 69
- 85
Slight Chance Thunderstorms
Today 16 Jul New Castle
Partly sunny. Showers and Thunderstorms likely this afternoon. Hot with Highs in the upper 80s. South Winds 5 to 10 Mph. Chance of rain 60 percent.
Tonight 16 Jul New Castle
Mostly cloudy with a chance of Thunderstorms. Showers Likely, mainly this evening. Lows in the mid 70s. Southwest Winds around 5 Mph. Chance of rain 60 percent.
New Castle Airport Temperature Statistics
July Temperature
Wilmington, New Castle County Airport (0 miles)
Lowest 5 July, 2025
61.6 °FAverage July
79.4 °FHighest 8 July, 2025
94.6 °F
Climate (2020–Present)
Wilmington, New Castle County Airport (0 miles)
Average Low 2020–2025
48.2 °FAverage 2020–2025
57.3 °FAverage High 2020–2025
66.5 °F