Weather in Cumberland County, Maine for September 2026
Until now, September 2026 in Cumberland County has been nearly identical to the historical average, with a temperature of 21.5 °F (showing only a slight deviation of 0.4 °F).
The forecast for the upcoming days in Cumberland County predicts a temperature of 15 °F, which is slightly above the historical average.
In general, the average temperature in Cumberland County at the beginning of September is 21.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.4 °F by the end of September.
Cumberland County experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 158.6 mm.
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Cumberland County Weather September
Temperatures trend during September in Cumberland County
September weather in Cumberland County day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain shower | 22° /15° | 2.6 mm | 4 | |
| Sept. 2 |  Partly cloudy | 19° /14° | 0 mm | 4 | |
| Sept. 3 |  Sunny | 19° /12° | 5.9 mm | 4 | |
| Sept. 4 |  Fog | 23° /14° | 0 mm | 5 | |
| Sept. 5 | Sunny | 22° /15° | 1.1 mm | 6 | |
| Sept. 6 | Mist | 22° /14° | 0.1 mm | 4 | |
| Sept. 7 | Mist | 22° /12° | 9.3 mm | 5 | |
| Sept. 8 | Sunny | 21° /12° | 0.8 mm | 4 | |
| Sept. 9 | Sunny | 20° /11° | 1.3 mm | 4 | |
| Sept. 10 | Partly cloudy | 23° /14° | 4.2 mm | 4 | |
| Sept. 11 | Sunny | 23° /11° | 0 mm | 6 | |
| Sept. 12 | Partly cloudy | 22° /11° | 0 mm | 6 | |
| Sept. 13 | Patchy rain possible | 20° /14° | 2.8 mm | 4 | |
| Sept. 14 | Patchy rain possible | 20° /14° | 0 mm | 5 | |
| Sept. 15 |  Overcast | 20° /12° | 0 mm | 5 | |
| Sept. 16 | Sunny | 21° /13° | 0 mm | 4 | |
| Sept. 17 | Fog | 19° /13° | 7 mm | 4 | |
| Sept. 18 | Mist | 22° /13° | 0.6 mm | 5 | |
| Sept. 19 | Mist | 18° /12° | 0 mm | 5 | |
| Sept. 20 | Overcast | 15° /12° | 16 mm | 1.3 | |
| Sept. 21 | Overcast | 17° /12° | 0.7 mm | 5 | |
| Sept. 22 | Overcast | 13° /11° | 0 mm | 3.6 | |
| Sept. 23 | Sunny | 13° /10° | 0.1 mm | 5 | |
| Sept. 24 | Overcast | 14° /10° | 0 mm | 4.2 | |
| Sept. 25 | Overcast | 14° /12° | 9.2 mm | 3 | |
| Sept. 26 | Overcast | 18° /14° | 1.2 mm | 4 | |
| Sept. 27 | Overcast | 14° /9° | 0 mm | 4 | |
| Sept. 28 | Patchy rain possible | 13° /11° | 0.1 mm | 4 | |
| Sept. 29 | Sunny | 14° /10° | 0 mm | 4 | |
| Sept. 30 | Light rain shower | 14° /11° | 7.9 mm | 3 | |
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Cumberland County in September - FAQ
What are the expected maximum and minimum temperatures in Cumberland County during September?
How much rainfall should be expected in Cumberland County during September?
What are the typical wind conditions in Cumberland County during September?
September rainfall patterns in Cumberland County
UV exposure in Cumberland County during September
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Where is Cumberland County?Get accurate weather forecasts for Cumberland County, located at latitude 43.657 and longitude -70.259. Stay updated with localized weather information tailored for Cumberland County.