Rochester (MN)
September
Weather in Rochester, Minnesota for September 2026
Your guide to Rochester weather in September - trends and predictions
In general, the average temperature in Rochester at the beginning of September is 18.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 24.3 °C by the end of September.
Rochester experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 57.2 mm.
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Temperatures
Rain 🌧️
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21
Dry days
9
Rainy days
0
Snow days
23°/13°
Temperatures
19 km/h
Avg max wind
76 %
Avg humidity
Rochester Weather September
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Temperatures trend during September in Rochester
See the weather trend as well as the moving average line
September weather in Rochester day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Overcast | 21° /13° | 0 mm | 5 | |
| Sept. 2 |  Sunny | 21° /11° | 4.8 mm | 6 | |
| Sept. 3 | Sunny | 19° /11° | 1.6 mm | 5 | |
| Sept. 4 | Sunny | 19° /10° | 13.2 mm | 5 | |
| Sept. 5 |  Patchy light drizzle | 18° /10° | 0.2 mm | 4 | |
| Sept. 6 |  Light rain shower | 16° /6° | 1 mm | 4 | |
| Sept. 7 | Sunny | 17° /4° | 0 mm | 5 | |
| Sept. 8 | Sunny | 22° /8° | 0 mm | 6 | |
| Sept. 9 | Sunny | 25° /14° | 0 mm | 6 | |
| Sept. 10 | Patchy rain possible | 25° /15° | 0.5 mm | 6 | |
| Sept. 11 | Sunny | 23° /16° | 0 mm | 6 | |
| Sept. 12 | Sunny | 26° /14° | 2.9 mm | 6 | |
| Sept. 13 | Overcast | 27° /16° | 3.1 mm | 6 | |
| Sept. 14 | Light rain shower | 27° /18° | 2.5 mm | 6 | |
| Sept. 15 |  Thundery outbreaks possible | 28° /20° | 0.3 mm | 6 | |
| Sept. 16 |  Partly cloudy | 29° /18° | 0 mm | 7 | |
| Sept. 17 |  Mist | 28° /15° | 0 mm | 6 | |
| Sept. 18 | Partly cloudy | 28° /15° | 0 mm | 7 | |
| Sept. 19 | Thundery outbreaks possible | 25° /16° | 3.2 mm | 6 | |
| Sept. 20 | Fog | 24° /15° | 23.1 mm | 6 | |
| Sept. 21 | Thundery outbreaks possible | 25° /15° | 0 mm | 6 | |
| Sept. 22 | Overcast | 20° /12° | 0.7 mm | 5 | |
| Sept. 23 | Fog | 19° /9° | 0 mm | 5 | |
| Sept. 24 | Partly cloudy | 21° /10° | 0 mm | 5 | |
| Sept. 25 | Sunny | 22° /10° | 0 mm | 6 | |
| Sept. 26 | Sunny | 26° /11° | 0 mm | 7 | |
| Sept. 27 | Mist | 25° /12° | 0 mm | 6 | |
| Sept. 28 | Fog | 25° /10° | 0 mm | 6 | |
| Sept. 29 | Sunny | 26° /10° | 0 mm | 7 | |
| Sept. 30 | Mist | 25° /12° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Rochester 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 Rochester forecast closer to your planned date for the most up-to-date weather information.
Change Month
Rochester in September - FAQ
What are the expected maximum and minimum temperatures in Rochester during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Rochester during September?
Moderate rainfall is anticipated in Rochester during September, with a total of 57.2 mm spread over approximately 9 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Rochester during September?
The average wind speed in Rochester during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Rochester
Explore the daily rainfall trends and prepare for Rochesters September weather 💧
Typically, Rochester has 9 rainy days in September with a total of 57.2 mm of rainfall.
UV exposure in Rochester during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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