Helena (MT)
August
Weather in Helena, Montana for August 2027
Your guide to Helena weather in August - trends and predictions
With an average of 5 rainy days, Helena experiences minimal rainfall in August.
Is August a good time to visit Helena? check out the best time to travel to Helena page.
✨ Is August a good time to visit Helena? – Ask the AI Weatherman
Rain 🌧️
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26
Dry days
5
Rainy days
0
Snow days
27°/12°
Temperatures
18 km/h
Avg max wind
44 %
Avg humidity
Helena Weather August
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Temperatures trend during August in Helena
See the weather trend as well as the moving average line
August weather in Helena day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Thundery outbreaks possible | 33° /15° | 0 mm | 9 | |
| Aug. 2 |  Overcast | 26° /14° | 0 mm | 8 | |
| Aug. 3 |  Sunny | 24° /11° | 0.2 mm | 9 | |
| Aug. 4 |  Heavy rain at times | 23° /9° | 5.2 mm | 8 | |
| Aug. 5 |  Light rain | 27° /9° | 2.5 mm | 8 | |
| Aug. 6 |  Partly cloudy | 30° /12° | 0 mm | 8.8 | |
| Aug. 7 | Thundery outbreaks possible | 28° /12° | 0 mm | 8 | |
| Aug. 8 | Overcast | 25° /11° | 0 mm | 7 | |
| Aug. 9 | Partly cloudy | 28° /12° | 0 mm | 8 | |
| Aug. 10 | Partly cloudy | 29° /13° | 0 mm | 8.6 | |
| Aug. 11 | Sunny | 30° /15° | 0 mm | 8.5 | |
| Aug. 12 | Sunny | 29° /13° | 0 mm | 8.4 | |
| Aug. 13 | Light rain | 26° /14° | 3.5 mm | 8.4 | |
| Aug. 14 | Light rain | 25° /13° | 2.8 mm | 7 | |
| Aug. 15 | Sunny | 26° /11° | 0.9 mm | 8.2 | |
| Aug. 16 | Partly cloudy | 29° /12° | 0.1 mm | 8.1 | |
| Aug. 17 | Thundery outbreaks possible | 27° /12° | 0.1 mm | 5 | |
| Aug. 18 | Partly cloudy | 28° /11° | 0.1 mm | 5 | |
| Aug. 19 | Sunny | 32° /13° | 0 mm | 7.9 | |
| Aug. 20 | Sunny | 31° /13° | 0 mm | 7.8 | |
| Aug. 21 | Sunny | 29° /13° | 0 mm | 7.7 | |
| Aug. 22 | Partly cloudy | 27° /13° | 0.2 mm | 4 | |
| Aug. 23 | Sunny | 29° /11° | 0.1 mm | 7.6 | |
| Aug. 24 | Partly cloudy | 28° /10° | 0 mm | 7.5 | |
| Aug. 25 | Sunny | 28° /13° | 0 mm | 7.4 | |
| Aug. 26 |  Cloudy | 31° /13° | 0.1 mm | 6 | |
| Aug. 27 |  Patchy rain possible | 27° /12° | 1 mm | 4 | |
| Aug. 28 | Heavy rain at times | 22° /12° | 10.2 mm | 3 | |
| Aug. 29 | Patchy rain possible | 24° /11° | 2.1 mm | 5 | |
| Aug. 30 | Sunny | 24° /10° | 0.9 mm | 7 | |
| Aug. 31 | Sunny | 27° /10° | 0 mm | 6.9 | |
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Important Notice
Our weather forecast for Helena in August 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 Helena forecast closer to your planned date for the most up-to-date weather information.
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Helena in August - FAQ
What are the expected maximum and minimum temperatures in Helena during August?
Enjoy moderate daytime temperatures of up to 27° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Helena during August?
In August, Helena can expect light to moderate rainfall, totaling 30 mm across approximately 5 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Helena during August?
The average wind speed in Helena during August is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Helena
Explore the daily rainfall trends and prepare for Helenas August weather 💧
Typically, Helena has 5 rainy days in August with a total of 30 mm of rainfall.
UV exposure in Helena during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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