Butte (MT)
September
Weather in Butte, Montana for September 2027
Your guide to Butte weather in September - trends and predictions
With an average of 4 rainy days, Butte experiences minimal rainfall in September.
Is September a good time to visit Butte? check out the best time to travel to Butte page.
✨ Is September a good time to visit Butte? – Ask the AI Weatherman
Rain 🌧️
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26
Dry days
4
Rainy days
0
Snow days
20°/6°
Temperatures
17 km/h
Avg max wind
51 %
Avg humidity
Butte Weather September
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Temperatures trend during September in Butte
See the weather trend as well as the moving average line
September weather in Butte day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 26° /11° | 0.4 mm | 6 | |
| Sept. 2 | Sunny | 25° /11° | 0.1 mm | 6 | |
| Sept. 3 | Sunny | 23° /10° | 0 mm | 6 | |
| Sept. 4 | Sunny | 20° /8° | 0.2 mm | 6.7 | |
| Sept. 5 | Sunny | 20° /5° | 0 mm | 6.6 | |
| Sept. 6 | Sunny | 23° /6° | 0 mm | 5 | |
| Sept. 7 |  Patchy rain possible | 19° /8° | 1.6 mm | 5 | |
| Sept. 8 | Sunny | 19° /4° | 0 mm | 6.3 | |
| Sept. 9 |  Thundery outbreaks possible | 21° /7° | 0 mm | 5 | |
| Sept. 10 | Thundery outbreaks possible | 24° /8° | 0 mm | 6.1 | |
| Sept. 11 | Thundery outbreaks possible | 20° /7° | 0.8 mm | 5 | |
| Sept. 12 | Thundery outbreaks possible | 19° /6° | 0 mm | 3 | |
| Sept. 13 | Thundery outbreaks possible | 19° /6° | 0.1 mm | 5.9 | |
| Sept. 14 | Thundery outbreaks possible | 16° /6° | 0.4 mm | 5.8 | |
| Sept. 15 |  Moderate or heavy rain with thunder | 15° /4° | 10.8 mm | 4 | |
| Sept. 16 |  Overcast | 18° /4° | 0 mm | 5 | |
| Sept. 17 |  Partly cloudy | 22° /7° | 0 mm | 5 | |
| Sept. 18 | Sunny | 22° /8° | 0.9 mm | 4 | |
| Sept. 19 |  Light rain | 16° /8° | 9.4 mm | 3 | |
| Sept. 20 | Sunny | 21° /7° | 0 mm | 5 | |
| Sept. 21 |  Moderate rain | 21° /7° | 22.6 mm | 5 | |
| Sept. 22 | Patchy rain possible | 18° /6° | 2.1 mm | 4 | |
| Sept. 23 | Sunny | 21° /5° | 0 mm | 4.9 | |
| Sept. 24 | Sunny | 24° /7° | 0 mm | 4.9 | |
| Sept. 25 | Sunny | 24° /9° | 0.1 mm | 4.8 | |
| Sept. 26 |  Cloudy | 16° /5° | 0 mm | 4.7 | |
| Sept. 27 | Sunny | 19° /2° | 0.3 mm | 3 | |
| Sept. 28 | Partly cloudy | 20° /6° | 0 mm | 4 | |
| Sept. 29 | Moderate or heavy rain with thunder | 21° /6° | 10.8 mm | 4 | |
| Sept. 30 | Thundery outbreaks possible | 18° /7° | 0 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Butte 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 Butte forecast closer to your planned date for the most up-to-date weather information.
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Butte in September - FAQ
What are the expected maximum and minimum temperatures in Butte during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 6°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Butte during September?
Moderate rainfall is anticipated in Butte during September, with a total of 60.7 mm spread over approximately 4 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Butte during September?
The average wind speed in Butte during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Butte
Explore the daily rainfall trends and prepare for Buttes September weather 💧
Typically, Butte has 4 rainy days in September with a total of 60.7 mm of rainfall.
UV exposure in Butte during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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