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United States weather

Weather in Lewis and Clark County, Montana for October 2027

Your guide to Lewis and Clark County weather in October - trends and predictions

    Snow Forecast ❄️

  • With an average of 3 snowy days, Lewis and Clark County usually enjoys a light touch of snow in October.

    • Temperatures

  • In general, the average temperature in Lewis and Clark County at the beginning of October is 19 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 8 °C by the end of October.

    • Rain 🌧️

  • With an average of 2 rainy days, Lewis and Clark County experiences minimal rainfall in October.

    • More

  • Is October a good time to visit Lewis and Clark County? check out the best time to travel to Lewis and Clark County page.

  • ✨ Is October a good time to visit Lewis and Clark County? – Ask the AI Weatherman

Average dry days
26
Dry days
Average rainy days
2
Rainy days
Average snowy days
3
Snow days
Average temperatures
13°/1°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
57 %
Avg humidity

Lewis and Clark County Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
20°
2
Overcast
22°
3
Moderate or heavy rain shower
17°
4
Overcast
19°
5
Light snow
15°
6
Mist
19°
7
Sunny
23°
8
Sunny
22°
9
Sunny
24°
10
Light snow
17°
11
Light snow
6°
12
Moderate or heavy rain shower
4°
13
Heavy snow
5°
14
Patchy rain possible
8°
15
Light snow
7°
16
Overcast
13°
17
Overcast
16°
18
Overcast
13°
19
Patchy rain possible
15°
20
Cloudy
13°
21
Sunny
18°
22
Sunny
19°
23
Moderate rain
12°
24
Overcast
12°
25
Overcast
9°
26
Patchy rain possible
8°
27
Overcast
7°
28
Patchy rain possible
8°
29
Overcast
9°
30
Sunny
7°
31
Overcast
9°

Temperatures trend during October in Lewis and Clark County

See the weather trend as well as the moving average line

October weather in Lewis and Clark County day by day

Click on a date for more information
September November
Date Weather Temperatures Rain Snow More
Oct. 1 Cloudy
Cloudy
 20° /8° 0 mm 0 cm
Oct. 2 Overcast
Overcast
 22° /7° 0 mm 0 cm
Oct. 3 Moderate or heavy rain shower
Moderate or heavy rain shower
 17° /7° 8.4 mm 0 cm
Oct. 4 Overcast
Overcast
 19° /5° 0 mm 0 cm
Oct. 5 Light snow
Light snow
 15° /4° 3.3 mm 2.4 cm
Oct. 6 Mist
Mist
 19° /2° 0 mm 0 cm
Oct. 7 Sunny
Sunny
 23° /3° 0 mm 0 cm
Oct. 8 Sunny
Sunny
 22° /5° 0 mm 0 cm
Oct. 9 Sunny
Sunny
 24° /7° 0 mm 0 cm
Oct. 10 Light snow
Light snow
 17° /3° 3.3 mm 1.5 cm
Oct. 11 Light snow
Light snow
 6° /0° 16.6 mm 3.9 cm
Oct. 12 Moderate or heavy rain shower
Moderate or heavy rain shower
 4° /-4° 8.1 mm 2.7 cm
Oct. 13 Heavy snow
Heavy snow
 5° /-5° 16.1 mm 11.6 cm
Oct. 14 Patchy rain possible
Patchy rain possible
 8° /-3° 1.1 mm 0 cm
Oct. 15 Light snow
Light snow
 7° /0° 16.7 mm 4.9 cm
Oct. 16 Overcast
Overcast
 13° /-1° 0 mm 0 cm
Oct. 17 Overcast
Overcast
 16° /0° 0 mm 0 cm
Oct. 18 Overcast
Overcast
 13° /1° 0 mm 0 cm
Oct. 19 Patchy rain possible
Patchy rain possible
 15° /2° 1.8 mm 0 cm
Oct. 20 Cloudy
Cloudy
 13° /2° 0 mm 0 cm
Oct. 21 Sunny
Sunny
 18° /2° 0 mm 0 cm
Oct. 22 Sunny
Sunny
 19° /3° 0 mm 0 cm
Oct. 23 Moderate rain
Moderate rain
 12° /-1° 14.2 mm 0 cm
Oct. 24 Overcast
Overcast
 12° /-4° 0 mm 0 cm
Oct. 25 Overcast
Overcast
 9° /-2° 0 mm 0 cm
Oct. 26 Patchy rain possible
Patchy rain possible
 8° /-2° 1.5 mm 0.9 cm
Oct. 27 Overcast
Overcast
 7° /-4° 0.2 mm 0 cm
Oct. 28 Patchy rain possible
Patchy rain possible
 8° /-3° 0.2 mm 0 cm
Oct. 29 Overcast
Overcast
 9° /-3° 0 mm 0 cm
Oct. 30 Sunny
Sunny
 7° /-4° 0 mm 0 cm
Oct. 31 Overcast
Overcast
 9° /-3° 0.1 mm 0 cm
Next
Important Notice
Our weather forecast for Lewis and Clark County in October 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 October - FAQ

What are the expected maximum and minimum temperatures in Lewis and Clark County during October?
Prepare for cooler days with highs just around 13° and colder nights, dipping below 1°.

How much rainfall should be expected in Lewis and Clark County during October?
Moderate rainfall is anticipated in Lewis and Clark County during October, with a total of 75.5 mm spread over approximately 2 days. Considering plans for rainy days is advisable.

Will it snow in Lewis and Clark County in October 2027?
Lewis and Clark County experiences an average snowfall of 27.1 cm during October, occurring over 3 days.

What are the typical wind conditions in Lewis and Clark County during October?
The average wind speed in Lewis and Clark County during October is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

Lewis and Clark County snow forecast October 2027

Track daily snowfall levels and discover Lewis and Clark County’s snowy potential this October ❄️
On average, Lewis and Clark County sees 3 snowy days during October, with approximately 27.1 cm of total snowfall.

October rainfall patterns in Lewis and Clark County

Explore the daily rainfall trends and prepare for Lewis and Clark Countys October weather 💧
Typically, Lewis and Clark County has 2 rainy days in October with a total of 75.5 mm of rainfall.

UV exposure in Lewis and Clark County during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
Top locations in Lewis and Clark County
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Helena
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