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Cascade County (Great Falls)
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United States weather

Weather in Cascade County, Montana for December 2026

Your guide to Cascade County weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 4 snowy days, Cascade County usually enjoys a light touch of snow in December.

    • Temperatures

  • In general, the average temperature in Cascade County at the beginning of December is 1 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 3.3 °F by the end of December.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
27
Dry days
Average rainy days
0
Rainy days
Average snowy days
4
Snow days
Average temperatures
3°/-4°
Temperatures
Average wind speed
27 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Cascade County Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
0°
2
Moderate or heavy snow showers
0°
3
Freezing fog
0°
4
Overcast
1°
5
Overcast
1°
6
Mist
3°
7
Overcast
2°
8
Overcast
4°
9
Overcast
6°
10
Mist
7°
11
Overcast
7°
12
Moderate snow
-3°
13
Mist
-2°
14
Overcast
6°
15
Overcast
6°
16
Sunny
7°
17
Cloudy
5°
18
Overcast
2°
19
Cloudy
6°
20
Sunny
3°
21
Partly cloudy
3°
22
Moderate snow
6°
23
Freezing fog
2°
24
Mist
0°
25
Overcast
6°
26
Overcast
4°
27
Overcast
0°
28
Sunny
-3°
29
Overcast
3°
30
Partly cloudy
6°
31
Partly cloudy
7°

Temperatures trend during December in Cascade County

See the weather trend as well as the moving average line

December weather in Cascade County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Overcast
Overcast
 0° /-11° 0 mm 0 cm
Dec. 2 Moderate or heavy snow showers
Moderate or heavy snow showers
 0° /-2° 14 mm 10.1 cm
Dec. 3 Freezing fog
Freezing fog
 0° /-8° 0 mm 0 cm
Dec. 4 Overcast
Overcast
 1° /-4° 0 mm 0 cm
Dec. 5 Overcast
Overcast
 1° /-4° 1.9 mm 1.4 cm
Dec. 6 Mist
Mist
 3° /-1° 0 mm 0 cm
Dec. 7 Overcast
Overcast
 2° /-3° 0 mm 0 cm
Dec. 8 Overcast
Overcast
 4° /1° 0 mm 0 cm
Dec. 9 Overcast
Overcast
 6° /-2° 0 mm 0 cm
Dec. 10 Mist
Mist
 7° /-1° 0 mm 0 cm
Dec. 11 Overcast
Overcast
 7° /-6° 0 mm 0 cm
Dec. 12 Moderate snow
Moderate snow
 -3° /-10° 10.3 mm 7.4 cm
Dec. 13 Mist
Mist
 -2° /-11° 0 mm 0 cm
Dec. 14 Overcast
Overcast
 6° /-1° 0 mm 0 cm
Dec. 15 Overcast
Overcast
 6° /0° 0 mm 0 cm
Dec. 16 Sunny
Sunny
 7° /0° 0 mm 0 cm
Dec. 17 Cloudy
Cloudy
 5° /-1° 0 mm 0 cm
Dec. 18 Overcast
Overcast
 2° /-4° 0 mm 0 cm
Dec. 19 Cloudy
Cloudy
 6° /-2° 0 mm 0 cm
Dec. 20 Sunny
Sunny
 3° /-2° 0 mm 0 cm
Dec. 21 Partly cloudy
Partly cloudy
 3° /-4° 0 mm 0 cm
Dec. 22 Moderate snow
Moderate snow
 6° /-1° 4 mm 1.7 cm
Dec. 23 Freezing fog
Freezing fog
 2° /-3° 0 mm 0 cm
Dec. 24 Mist
Mist
 0° /-2° 0 mm 0 cm
Dec. 25 Overcast
Overcast
 6° /-3° 0 mm 0 cm
Dec. 26 Overcast
Overcast
 4° /0° 0 mm 0 cm
Dec. 27 Overcast
Overcast
 0° /-13° 0 mm 0 cm
Dec. 28 Sunny
Sunny
 -3° /-15° 0 mm 0 cm
Dec. 29 Overcast
Overcast
 3° /-6° 0 mm 0 cm
Dec. 30 Partly cloudy
Partly cloudy
 6° /-4° 0 mm 0 cm
Dec. 31 Partly cloudy
Partly cloudy
 7° /-2° 0 mm 0 cm
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Important Notice
Our weather forecast for Cascade County in December 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 Cascade County forecast closer to your planned date for the most up-to-date weather information.
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Cascade County in December - FAQ

What are the expected maximum and minimum temperatures in Cascade County during December?

Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Cascade County during December?

In December, Cascade County can expect light to moderate rainfall, totaling 30.2 mm across approximately 0 days. Occasional showers are possible, and planning ahead for them could be helpful.

Will it snow in Cascade County in December 2026?

Cascade County experiences an average snowfall of 20.6 cm during December, occurring over 4 days.

What are the typical wind conditions in Cascade County during December?

The average wind speed in Cascade County during December is 27 km/h, suggesting breezy to windy conditions, depending on your activities.

Cascade County snow forecast December 2026

Track daily snowfall levels and discover Cascade County’s snowy potential this December ❄️
On average, Cascade County sees 4 snowy days during December, with approximately 20.6 cm of total snowfall.

December rainfall patterns in Cascade County

Explore the daily rainfall trends and prepare for Cascade Countys December weather 💧
Top locations in Cascade County
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Great Falls
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Location coordinates Where is Cascade County?

Get accurate weather forecasts for Cascade County, located at latitude 47.5 and longitude -111.301. Stay updated with localized weather information tailored for Cascade County.

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