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Lewis and Clark County (Helena)
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United States weather

10 day weather forecast for Lewis and Clark County

Thursday, December 4th, 2025, at 12:00 PM
today
Moderate or heavy snow showers
5° -3°
tomorrow
Moderate or heavy snow showers
2° -6°
Saturday
Overcast
4° -4°
Sunday
Partly cloudy
-2° -11°
Monday
Patchy moderate snow
1° -3°
Tuesday
Partly cloudy
5° 0°
Wednesday
Patchy rain possible
5° -2°
 More Details See
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Lewis and Clark County Weather Pages

Lewis and Clark County weather forecast

The weather forecast for Lewis and Clark County over the next 3 days indicates extremely cold conditions with temperatures ranging from 2 °F to 5 °F.

Snow is expected Thursday, Friday, and Monday,, accompanied by a gentle breeze.

On Sunday, a notable cooling trend with temperatures reaching -2°C.

Weather today
Lewis and Clark County weather forecast

Lewis and Clark County 14 days weather forecast

This weeks weather in Lewis and Clark County. Click on a date for detailed forecasts
Thu. 4
5°
-3°
Moderate or heavy snow showers
1.9 cm
Fri. 5
2°
-6°
Moderate or heavy snow showers
2.7 cm
Sat. 6
4°
-4°
Overcast
0 mm
Sun. 7
-2°
-11°
Partly cloudy
0 mm
Mon. 8
1°
-3°
Patchy moderate snow
0.6 cm
Tue. 9
5°
0°
Partly cloudy
0.1 mm
Wed. 10
5°
-2°
Patchy rain possible
0.9 cm
Thu. 11
2°
-6°
Light freezing rain
0.3 cm
Fri. 12
-12°
-19°
Moderate snow
1.9 cm
Sat. 13
-16°
-24°
Light snow
0.7 cm
Sun. 14
-14°
-22°
Mist
0 mm
Mon. 15
-11°
-22°
Light freezing rain
0.2 cm
Tue. 16
-3°
-19°
Light snow
0.7 cm
Wed. 17
-23°
-29°
Moderate snow
2 cm
Further Ahead
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Access Lewis and Clark County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Lewis and Clark County snow forecast ☃️

A total of 11.81 cm of snow is expected in Lewis and Clark County over the next two weeks

Lewis and Clark County long range weather forecast

30 day weather forecast for Lewis and Clark County
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
1°
2
Sunny
3°
3
Partly cloudy
4°
4
Moderate or heavy snow showers
5°
5
Moderate or heavy snow showers
2°
6
Overcast
4°
7
Partly cloudy
-2°
8
Patchy moderate snow
1°
9
Partly cloudy
5°
10
Patchy rain possible
5°
11
Light freezing rain
2°
12
Moderate snow
-12°
13
Light snow
-16°
14
Mist
-14°
15
Light freezing rain
-11°
16
Light snow
-3°
17
Moderate snow
-23°
18
Patchy rain possible
7°
19
Partly cloudy
1°
20
Overcast
5°
21
Overcast
4°
22
Partly cloudy
5°
23
Overcast
6°
24
Overcast
4°
25
Overcast
4°
26
Light freezing rain
3°
27
Cloudy
2°
28
Light freezing rain
4°
29
Patchy moderate snow
1°
30
Light freezing rain
1°
31
Overcast
0°
Important Notice
Our Lewis and Clark County long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.

Rain Forecast for the Next 14 Days in Lewis and Clark County

The chart displays the expected rainfall values (in mm) over the next 14 days in Lewis and Clark County, highlighting variations in precipitation levels for specific dates. ☔

Lewis and Clark County Wind Speed Forecast Chart

This chart illustrates the projected daily max wind speed (in km) in Lewis and Clark County over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀

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Location coordinates 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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