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10 day weather forecast for New Castle County

Sunday, October 11th, 2026, at 04:30 AM
today
Light rain
17° 15°
tomorrow
Sunny
23° 14°
Tuesday
Sunny
24° 15°
Wednesday
Sunny
26° 17°
Thursday
Overcast
18° 12°
Friday
Sunny
22° 13°
Saturday
Overcast
21° 7°
 More Details See
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New Castle County Weather Pages

New Castle County weather forecast

The weather forecast for New Castle County for today indicates damp and chilly conditions with temperatures around 17 °F.

Rain is expected on Sunday, Monday, and Wednesday.

Wind speeds are expected to be strong, averaging around 26 km/h.

On Monday, expect a change in weather with temperatures reaching 23°C, and light showers with a 63% chance.

Weather today
New Castle County weather forecast

New Castle County 14 days weather forecast

This weeks weather in New Castle County. Click on a date for detailed forecasts
Sun. 11
17°
15°
Light rain
29.4 mm
Mon. 12
23°
14°
Sunny
1.1 mm
Tue. 13
24°
15°
Sunny
0 mm
Wed. 14
26°
17°
Sunny
0.4 mm
Thu. 15
18°
12°
Overcast
0 mm
Fri. 16
22°
13°
Sunny
0.6 mm
Sat. 17
21°
7°
Overcast
0.7 mm
Sun. 18
8°
3°
Sunny
0 mm
Mon. 19
10°
2°
Sunny
0 mm
Tue. 20
14°
5°
Sunny
0 mm
Wed. 21
15°
7°
Sunny
0 mm
Thu. 22
18°
8°
Sunny
0 mm
Fri. 23
18°
10°
Sunny
0 mm
Sat. 24
11°
6°
Sunny
0 mm
Further Ahead
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Access New Castle County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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New Castle County long range weather forecast

30 day weather forecast for New Castle County
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
23°
2
Partly cloudy
25°
3
Overcast
20°
4
Sunny
21°
5
Fog
24°
6
Mist
19°
7
Mist
21°
8
Moderate or heavy rain shower
22°
9
Sunny
20°
10
Cloudy
15°
11
Light rain
17°
12
Sunny
23°
13
Sunny
24°
14
Sunny
26°
15
Overcast
18°
16
Sunny
22°
17
Overcast
21°
18
Sunny
8°
19
Sunny
10°
20
Sunny
14°
21
Sunny
15°
22
Sunny
18°
23
Sunny
18°
24
Sunny
11°
25
Partly cloudy
13°
26
Overcast
14°
27
Overcast
11°
28
Overcast
10°
29
Moderate or heavy rain shower
12°
30
Moderate or heavy rain shower
12°
31
Overcast
14°
Important Notice
Our New Castle County long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.

Rain Forecast for the Next 14 Days in New Castle County

The chart displays the expected rainfall values (in mm) over the next 14 days in New Castle County, highlighting variations in precipitation levels for specific dates. ☔

New Castle County Wind Speed Forecast Chart

This chart illustrates the projected daily max wind speed (in km) in New Castle County over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀

Frequently asked questions about the weather in New Castle County

How warm is it in New Castle County over the next 14 days?
Over the next two weeks, temperatures in New Castle County are expected to range from around 2 °F on the coldest nights up to about 26 °F on the warmest days. Use this range to plan what to pack and wear.

Will it rain in New Castle County in the next two weeks?
Yes - rain is expected on about 6 of the next 14 days in New Castle County, with roughly 32.2 mm of rainfall in total. It is worth keeping an umbrella or raincoat handy.

How windy is it in New Castle County?
Maximum wind speeds in New Castle County are forecast to reach about 27 km/h at their peak over the next 14 days.

When is the best time to visit New Castle County?
For a month-by-month look at temperatures and rainfall, see our best time to visit New Castle County guide.

How accurate is the 14-day forecast for New Castle County?
Our New Castle County forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.

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Location coordinates Where is New Castle County?

Get accurate weather forecasts for New Castle County, located at latitude 39.746 and longitude -75.547. Stay updated with localized weather information tailored for New Castle County.

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