Lewis and Clark County (Helena)
July
Weather in Lewis and Clark County, Montana for July 2026
Your guide to Lewis and Clark County weather in July - trends and predictions
So far, July 2026 in Lewis and Clark County is slightly warmer than the historical average by 1.6 °C.
The forecast for the next days in Lewis and Clark County predicts temperatures to be around 34 °C, close to the historical average.
In general, the average temperature in Lewis and Clark County at the beginning of July is 26.3 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 34.1 °C by the end of July.
The climate of Lewis and Clark County in July is notably wet, with an average of 12 rainy days, and a total of 53.6 mm of precipitation.
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Temperatures
Rain 🌧️
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19
Dry days
12
Rainy days
0
Snow days
27°/12°
Temperatures
19 km/h
Avg max wind
52 %
Avg humidity
Lewis and Clark County Weather July
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Temperatures trend during July in Lewis and Clark County
See the weather trend as well as the moving average line
July weather in Lewis and Clark County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jul. 1 |  Sunny | 27° /11° | 2.3 mm | 9 | |
| Jul. 2 |  Thundery outbreaks possible | 27° /10° | 3.3 mm | 9 | |
| Jul. 3 |  Moderate rain | 27° /11° | 7.5 mm | 9 | |
| Jul. 4 |  Overcast | 25° /10° | 5.7 mm | 8 | |
| Jul. 5 |  Fog | 25° /11° | 0.2 mm | 8 | |
| Jul. 6 | Sunny | 25° /9° | 1.2 mm | 9 | |
| Jul. 7 | Sunny | 28° /11° | 0.1 mm | 9 | |
| Jul. 8 | Sunny | 32° /13° | 0.3 mm | 10 | |
| Jul. 9 | Sunny | 31° /14° | 0 mm | 10 | |
| Jul. 10 |  Partly cloudy | 28° /12° | 0 mm | 9 | |
| Jul. 11 | Partly cloudy | 30° /11° | 0 mm | 9 | |
| Jul. 12 | Partly cloudy | 32° /13° | 0 mm | 9 | |
| Jul. 13 | Sunny | 32° /15° | 0 mm | 10 | |
| Jul. 14 | Sunny | 32° /17° | 1.9 mm | 10 | |
| Jul. 15 | Overcast | 22° /11° | 0.2 mm | 7 | |
| Jul. 16 | Mist | 27° /11° | 2.2 mm | 8 | |
| Jul. 17 | Sunny | 31° /10° | 1.2 mm | 9 | |
| Jul. 18 | Partly cloudy | 30° /12° | 1.1 mm | 9 | |
| Jul. 19 | Overcast | 30° /14° | 0 mm | 9 | |
| Jul. 20 | Sunny | 32° /16° | 0 mm | 8.9 | |
| Jul. 21 | Sunny | 29° /11° | 0.1 mm | 8.7 | |
| Jul. 22 | Sunny | 32° /14° | 12.2 mm | 8.4 | |
| Jul. 23 | Sunny | 33° /15° | 0.8 mm | 8.7 | |
| Jul. 24 | Sunny | 36° /15° | 0 mm | 9 | |
| Jul. 25 | Sunny | 36° /15° | 0 mm | 9 | |
| Jul. 26 | Sunny | 32° /14° | 0 mm | 8 | |
| Jul. 27 | Sunny | 31° /11° | 0 mm | 8 | |
| Jul. 28 | Partly cloudy | 31° /13° | 0 mm | 8 | |
| Jul. 29 | Sunny | 31° /11° | 0 mm | 8 | |
| Jul. 30 | Sunny | 39° /14° | 0 mm | 9 | |
| Jul. 31 | Sunny | 39° /17° | 0 mm | 9 | |
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Important Notice
Our weather forecast for Lewis and Clark County in July 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 Lewis and Clark County forecast closer to your planned date for the most up-to-date weather information.
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Lewis and Clark County in July - FAQ
What are the expected maximum and minimum temperatures in Lewis and Clark County during July?
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 Lewis and Clark County during July?
Moderate rainfall is anticipated in Lewis and Clark County during July, with a total of 53.6 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Lewis and Clark County during July?
The average wind speed in Lewis and Clark County during July is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
July rainfall patterns in Lewis and Clark County
Explore the daily rainfall trends and prepare for Lewis and Clark Countys July weather 💧
Typically, Lewis and Clark County has 12 rainy days in July with a total of 53.6 mm of rainfall.
UV exposure in Lewis and Clark County during July
Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️
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Where is Lewis and Clark County?Get accurate weather forecasts for Lewis and Clark County, located at latitude 46.593 and longitude -112.036. Stay updated with localized weather information tailored for Lewis and Clark County.
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