New Castle County (Newark)
June
Weather in New Castle County, Delaware for June 2025
Your guide to New Castle County weather in June - trends and predictions
So far, June 2025 in New Castle County is slightly warmer than the historical average by 0.9 °F.
The forecast for the upcoming days in New Castle County predicts a temperature of 29.4 °F, which is slightly above the historical average.
In general, the average temperature in New Castle County at the beginning of June is 25.7 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 30.9 °F by the end of June.
New Castle County experiences moderate rainfall in June, with an average of 10 rainy days and a total precipitation of 128.1 mm.
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Temperatures
Rain 🌧️
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20
Dry days
10
Rainy days
0
Snow days
27°/17°
Temperatures
19 km/h
Avg max wind
67 %
Avg humidity
New Castle County Weather June
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Temperatures trend during June in New Castle County
See the weather trend as well as the moving average line
June weather in New Castle County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jun. 1 |  Overcast | 21° /10° | 0 mm | 5 | |
| Jun. 2 |  Cloudy | 23° /12° | 0.1 mm | 6 | |
| Jun. 3 |  Patchy rain possible | 27° /15° | 0.4 mm | 7 | |
| Jun. 4 |  Sunny | 29° /16° | 0 mm | 8 | |
| Jun. 5 | Light rain shower | 29° /16° | 12.4 mm | 7 | |
| Jun. 6 |  Moderate rain | 28° /18° | 5.6 mm | 7 | |
| Jun. 7 |  Partly cloudy | 23° /16° | 93.9 mm | 6 | |
| Jun. 8 | Partly cloudy | 23° /14° | 10.6 mm | 6 | |
| Jun. 9 | Light rain shower | 23° /15° | 9.7 mm | 5 | |
| Jun. 10 | Patchy rain possible | 23° /16° | 12.7 mm | 6 | |
| Jun. 11 | Overcast | 26° /14° | 0 mm | 7 | |
| Jun. 12 | Partly cloudy | 30° /16° | 0 mm | 8 | |
| Jun. 13 |  Light drizzle | 30° /18° | 3.2 mm | 7 | |
| Jun. 14 | Partly cloudy | 30° /18° | 20.4 mm | 7 | |
| Jun. 15 |  Mist | 26° /15° | 1.4 mm | 6 | |
| Jun. 16 | Overcast | 22° /17° | 0 mm | 0.6 | |
| Jun. 17 | Patchy rain possible | 26° /19° | 0.4 mm | 0.9 | |
| Jun. 18 |  Heavy rain | 34° /20° | 37.5 mm | 2.6 | |
| Jun. 19 | Heavy rain | 34° /21° | 51.2 mm | 2.6 | |
| Jun. 20 | Sunny | 23° /15° | 0.1 mm | 0.2 | |
| Jun. 21 | Sunny | 25° /13° | 0 mm | 5 | |
| Jun. 22 | Patchy rain possible | 33° /18° | 0.1 mm | 6 | |
| Jun. 23 | Sunny | 29° /19° | 0 mm | 6 | |
| Jun. 24 | Sunny | 33° /17° | 0 mm | 7 | |
| Jun. 25 | Patchy rain possible | 35° /23° | 0.8 mm | 6 | |
| Jun. 26 | Sunny | 33° /22° | 0 mm | 7 | |
| Jun. 27 | Sunny | 32° /24° | 0 mm | 7 | |
| Jun. 28 | Patchy rain possible | 25° /16° | 2.8 mm | 5 | |
| Jun. 29 | Sunny | 27° /16° | 0 mm | 6 | |
| Jun. 30 | Light drizzle | 31° /21° | 1.5 mm | 7 | |
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Important Notice
Our weather forecast for New Castle County in June is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the New Castle County forecast closer to your planned date for the most up-to-date weather information.
Change Month
New Castle County in June - FAQ
What are the expected maximum and minimum temperatures in New Castle County during June?
During June, expect a variety of temperatures with highs around 27° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in New Castle County during June?
Significant rainfall exceeding 128.1 mm is expected in New Castle County during June, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in New Castle County during June?
The average wind speed in New Castle County during June is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
June rainfall patterns in New Castle County
Explore the daily rainfall trends and prepare for New Castle Countys June weather 💧
UV exposure in New Castle County during June
Stay informed about UV levels for safe outdoor activities throughout the month of June ☀️
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