Warren County (Belvidere)
September
Weather in Warren County, New Jersey for September 2027
Your guide to Warren County weather in September - trends and predictions
In general, the average temperature in Warren County at the beginning of September is 26.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.3 °F by the end of September.
The climate of Warren County in September is notably wet, with an average of 15 rainy days, and a total of 133.4 mm of precipitation.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
15
Dry days
15
Rainy days
0
Snow days
23°/14°
Temperatures
15 km/h
Avg max wind
74 %
Avg humidity
Warren County Weather September
Move between months or click on a day
Temperatures trend during September in Warren County
See the weather trend as well as the moving average line
September weather in Warren County day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Moderate or heavy rain shower | 31° /19° | 23.9 mm | 2 | |
| Sept. 2 | Moderate or heavy rain shower | 21° /19° | 7.3 mm | 1 | |
| Sept. 3 |  Overcast | 28° /19° | 12.4 mm | 1 | |
| Sept. 4 |  Patchy rain possible | 29° /20° | 9.3 mm | 7 | |
| Sept. 5 | Overcast | 26° /18° | 0 mm | 8 | |
| Sept. 6 | Patchy rain possible | 25° /15° | 0.3 mm | 8 | |
| Sept. 7 |  Sunny | 26° /12° | 0 mm | 7 | |
| Sept. 8 | Overcast | 26° /12° | 0 mm | 7 | |
| Sept. 9 | Patchy rain possible | 28° /16° | 0.4 mm | 2 | |
| Sept. 10 |  Heavy rain at times | 29° /20° | 1.4 mm | 2 | |
| Sept. 11 | Overcast | 27° /17° | 0 mm | 6 | |
| Sept. 12 | Overcast | 25° /11° | 0 mm | 6 | |
| Sept. 13 | Moderate or heavy rain shower | 25° /17° | 13.6 mm | 3 | |
| Sept. 14 |  Cloudy | 22° /12° | 0 mm | 7 | |
| Sept. 15 | Overcast | 21° /10° | 0 mm | 7 | |
| Sept. 16 | Overcast | 26° /13° | 0 mm | 6 | |
| Sept. 17 | Patchy rain possible | 28° /18° | 0.7 mm | 5 | |
| Sept. 18 | Overcast | 26° /17° | 0 mm | 4 | |
| Sept. 19 | Overcast | 21° /13° | 0 mm | 2 | |
| Sept. 20 | Moderate or heavy rain shower | 19° /14° | 15.6 mm | 1 | |
| Sept. 21 | Overcast | 21° /13° | 1.7 mm | 1 | |
| Sept. 22 | Patchy rain possible | 17° /10° | 4.1 mm | 1 | |
| Sept. 23 | Overcast | 18° /8° | 0 mm | 2 | |
| Sept. 24 | Overcast | 18° /6° | 0 mm | 3 | |
| Sept. 25 | Overcast | 20° /9° | 0 mm | 1 | |
| Sept. 26 | Moderate or heavy rain shower | 16° /13° | 14.2 mm | 1 | |
| Sept. 27 | Moderate or heavy rain shower | 14° /12° | 22.4 mm | 1 | |
| Sept. 28 | Moderate rain at times | 16° /12° | 6.1 mm | 1 | |
| Sept. 29 | Overcast | 21° /13° | 0 mm | 4 | |
| Sept. 30 | Overcast | 23° /14° | 0.1 mm | 1 | |
| Next | |||||
Important Notice
Our weather forecast for Warren County in September 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 Warren County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Warren County in September - FAQ
What are the expected maximum and minimum temperatures in Warren County during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Warren County during September?
Significant rainfall exceeding 133.4 mm is expected in Warren County during September, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Warren County during September?
The average wind speed in Warren County during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Warren County
Explore the daily rainfall trends and prepare for Warren Countys September weather 💧
Typically, Warren County has 15 rainy days in September with a total of 133.4 mm of rainfall.
UV exposure in Warren County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Top locations in Warren County
Select a location for an accurate weather forecast
More Locations Quick links
More Warren County weather pages
You are here
Where is Warren County?Get accurate weather forecasts for Warren County, located at latitude 40.83 and longitude -75.078. Stay updated with localized weather information tailored for Warren County.
Found a mistake?
We appreciate your attention to details. Tell us here.