New Castle County (Newark)
July
Weather in New Castle County, Delaware for July 2026
Your guide to New Castle County weather in July - trends and predictions
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So far, July 2026 in New Castle County is slightly warmer than the historical average by 1.1 °C.
The forecast for the next days in New Castle County predicts temperatures to be around 30 °C, close to the historical average.
In general, the average temperature in New Castle County at the beginning of July is 31.7 °C. As the month progressed, temperatures tended to remain steady, reaching an average of 31.7 °C by the end of July.
New Castle County experiences heavy rainfall in July, with over 20 rainy days and an average total precipitation 283.1 mm.
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Temperatures
Rain 🌧️
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7
Dry days
24
Rainy days
0
Snow days
31°/21°
Temperatures
14 km/h
Avg max wind
74 %
Avg humidity
New Castle County Weather July
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Temperatures trend during July in New Castle County
See the weather trend as well as the moving average line
July weather in New Castle County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jul. 1 |  Partly cloudy | 32° /19° | 21 mm | 9 | |
| Jul. 2 |  Sunny | 33° /20° | 8.5 mm | 9 | |
| Jul. 3 | Sunny | 33° /20° | 0.2 mm | 9 | |
| Jul. 4 |  Patchy light drizzle | 32° /20° | 2.2 mm | 8 | |
| Jul. 5 |  Light rain shower | 32° /20° | 10.7 mm | 9 | |
| Jul. 6 |  Fog | 31° /21° | 12.4 mm | 7 | |
| Jul. 7 |  Moderate or heavy rain shower | 29° /21° | 13.1 mm | 6 | |
| Jul. 8 | Patchy rain possible | 32° /21° | 1.3 mm | 9 | |
| Jul. 9 | Light rain shower | 30° /22° | 8.3 mm | 8 | |
| Jul. 10 | Moderate or heavy rain shower | 31° /22° | 9.2 mm | 8 | |
| Jul. 11 | Partly cloudy | 30° /21° | 3.1 mm | 9 | |
| Jul. 12 | Light rain shower | 30° /21° | 1 mm | 8 | |
| Jul. 13 | Fog | 31° /20° | 0.7 mm | 9 | |
| Jul. 14 | Partly cloudy | 32° /20° | 1.7 mm | 9 | |
| Jul. 15 |  Thundery outbreaks possible | 34° /22° | 66.2 mm | 9 | |
| Jul. 16 | Sunny | 33° /23° | 2.5 mm | 9 | |
| Jul. 17 | Patchy rain possible | 34° /21° | 20.5 mm | 9 | |
| Jul. 18 | Partly cloudy | 30° /21° | 7.9 mm | 9 | |
| Jul. 19 | Sunny | 28° /19° | 2.4 mm | 8 | |
| Jul. 20 | Sunny | 32° /16° | 0 mm | 8.1 | |
| Jul. 21 | Partly cloudy | 31° /21° | 8.7 mm | 8.4 | |
| Jul. 22 | Sunny | 29° /19° | 3 mm | 7.5 | |
| Jul. 23 | Sunny | 26° /15° | 0 mm | 8.9 | |
| Jul. 24 | Sunny | 28° /15° | 0 mm | 7 | |
| Jul. 25 | Sunny | 30° /18° | 0 mm | 7 | |
| Jul. 26 | Sunny | 28° /15° | 0 mm | 7 | |
| Jul. 27 | Sunny | 33° /21° | 0 mm | 8 | |
| Jul. 28 | Partly cloudy | 34° /23° | 0.5 mm | 8 | |
| Jul. 29 | Sunny | 34° /21° | 0.3 mm | 8 | |
| Jul. 30 | Sunny | 35° /22° | 2.7 mm | 8 | |
| Jul. 31 | Sunny | 28° /20° | 1.5 mm | 7 | |
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Important Notice
Our weather forecast for New Castle County in July 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.
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New Castle County in July - FAQ
What are the expected maximum and minimum temperatures in New Castle County during July?
During July, expect a variety of temperatures with highs around 31° and lows near 21°, suitable for diverse activities and preferences.
How much rainfall should be expected in New Castle County during July?
Significant rainfall exceeding 283.1 mm is expected in New Castle County during July, occurring over more than 24 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in New Castle County during July?
The average wind speed in New Castle County during July is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
July rainfall patterns in New Castle County
Explore the daily rainfall trends and prepare for New Castle Countys July weather 💧
Typically, New Castle County has 24 rainy days in July with a total of 283.1 mm of rainfall.
UV exposure in New Castle County during July
Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️
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Where is New Castle County?Get accurate weather forecasts for New Castle County, located at latitude 39.684 and longitude -75.75. Stay updated with localized weather information tailored for New Castle County.
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