Weather in Worcester County, Massachusetts for September 2025
Until now, September 2025 in Worcester County is cooler than usual, with temperatures averaging 21 °F, this is -2.8 °F below the typical seasonal average.
The forecast for the next days in Worcester County predicts temperatures to be around 24 °F, close to the historical average.
In general, the average temperature in Worcester County at the beginning of September is 24.7 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 22.3 °F by the end of September.
The climate of Worcester County in September is notably wet, with an average of 15 rainy days, and a total of 206.3 mm of precipitation.
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Worcester County Weather September
Temperatures trend during September in Worcester County
September weather in Worcester County day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 23° /14° | 4.3 mm | 5 | |
| Sept. 2 |  Overcast | 24° /13° | 0 mm | 5 | |
| Sept. 3 |  Mist | 24° /12° | 0 mm | 6 | |
| Sept. 4 | Mist | 25° /12° | 0 mm | 6 | |
| Sept. 5 | Fog | 27° /15° | 2.3 mm | 6 | |
| Sept. 6 |  Cloudy | 26° /16° | 0 mm | 6 | |
| Sept. 7 |  Thundery outbreaks possible | 24° /14° | 15.4 mm | 5 | |
| Sept. 8 |  Patchy light rain with thunder | 23° /12° | 0.8 mm | 6 | |
| Sept. 9 |  Partly cloudy | 22° /14° | 4.8 mm | 6 | |
| Sept. 10 |  Light rain shower | 23° /14° | 4.4 mm | 5 | |
| Sept. 11 | Light rain shower | 23° /12° | 2.4 mm | 5 | |
| Sept. 12 | Partly cloudy | 23° /14° | 11 mm | 6 | |
| Sept. 13 |  Moderate or heavy rain shower | 23° /14° | 6.7 mm | 6 | |
| Sept. 14 | Mist | 24° /15° | 0 mm | 6 | |
| Sept. 15 | Sunny | 24° /15° | 0 mm | 1.4 | |
| Sept. 16 | Partly cloudy | 21° /11° | 0 mm | 1.4 | |
| Sept. 17 | Mist | 22° /9° | 0 mm | 1.2 | |
| Sept. 18 | Sunny | 28° /14° | 0 mm | 1.3 | |
| Sept. 19 | Sunny | 25° /12° | 0 mm | 0 | |
| Sept. 20 | Sunny | 19° /7° | 0 mm | 4 | |
| Sept. 21 | Sunny | 21° /6° | 0 mm | 4 | |
| Sept. 22 | Sunny | 23° /8° | 0 mm | 4 | |
| Sept. 23 | Sunny | 25° /10° | 0 mm | 5 | |
| Sept. 24 | Patchy rain possible | 23° /14° | 0.7 mm | 4 | |
| Sept. 25 | Patchy rain possible | 22° /14° | 0.4 mm | 4 | |
| Sept. 26 | Overcast | 24° /13° | 0.1 mm | 4 | |
| Sept. 27 | Sunny | 30° /12° | 0 mm | 6 | |
| Sept. 28 | Sunny | 24° /12° | 0 mm | 5 | |
| Sept. 29 | Patchy rain possible | 15° /10° | 0.1 mm | 4 | |
| Sept. 30 | Mist | 18° /10° | 0 mm | 4 | |
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Worcester County in September - FAQ
September rainfall patterns in Worcester County
UV exposure in Worcester County during September
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Where is Worcester County?Get accurate weather forecasts for Worcester County, located at latitude 42.263 and longitude -71.802. Stay updated with localized weather information tailored for Worcester County.