New Castle Weather Forecast
- 60
- 81
Slight Chance Rain Showers
- 60
- 76
Mostly Sunny
- 60
- 76
Mostly Sunny
- 66
- 83
Mostly Sunny
- 71
- 89
Mostly Sunny
- 70
- 91
Slight Chance Thunderstorms
Today 9 Jun New Castle
Partly sunny with a 20 percent chance of Showers. Highs around 80. Southwest Winds 5 to 10 Mph, becoming northwest 10 to 15 Mph in the afternoon.
Tonight 9 Jun New Castle
Partly cloudy. Near steady temperature in the mid 60s. South Winds around 5 Mph.
New Castle Temperature Statistics
June Temperature
Wilmington, New Castle County Airport (1.9 miles)
Lowest 1 June, 2024
50.6 °FAverage June
73.4 °FHighest 3 June, 2024
87.7 °F
Climate (2019–Present)
Wilmington, New Castle County Airport (1.9 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2019–2024
48.3 °FAverage 2019–2024
57.2 °FAverage High 2019–2024
66.3 °F