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United States weather

Weather in Gallatin County, Montana for January 2026

Your guide to Gallatin County weather in January - trends and predictions

    Snow Forecast ❄️

  • Gallatin County typically experiences moderate snowfall in January, with an average of 7 snowy days.
    According to Gallatin County snow forecast for January 2026, 5 snowy days are expected until the end of the month. The closest date with snow is Thursday, January 22.

    • Temperatures

  • So far, January 2026 in Gallatin County is slightly warmer than the historical average by 1.3 °F.

  • The forecast for the next days in Gallatin County predicts temperatures to be around 2 °F, close to the historical average.

  • In general, the average temperature in Gallatin County at the beginning of January is 0.6 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 2.3 °F by the end of January.

    • More

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

Average dry days
15
Dry days
Average rainy days
9
Rainy days
Average snowy days
7
Snow days
Average temperatures
-2°/-10°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
82 %
Avg humidity

Gallatin County Weather January

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

Temperatures trend during January in Gallatin County

See the weather trend as well as the moving average line

January weather in Gallatin County day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
Jan. 1 Light freezing rain
Light freezing rain
 0° /-7° 0.4 mm 0 cm
Jan. 2 Light freezing rain
Light freezing rain
 2° /-5° 15.4 mm 10 cm
Jan. 3 Patchy moderate snow
Patchy moderate snow
 1° /-4° 1.9 mm 0.8 cm
Jan. 4 Moderate snow
Moderate snow
 2° /-3° 3 mm 1.7 cm
Jan. 5 Patchy moderate snow
Patchy moderate snow
 1° /-4° 1.1 mm 0.2 cm
Jan. 6 Patchy moderate snow
Patchy moderate snow
 -1° /-6° 1.3 mm 0.2 cm
Jan. 7 Overcast
Overcast
 -1° /-7° 6.4 mm 3.9 cm
Jan. 8 Light freezing rain
Light freezing rain
 -2° /-7° 1.3 mm 0.2 cm
Jan. 9 Light freezing rain
Light freezing rain
 -1° /-6° 0.2 mm 0 cm
Jan. 10 Overcast
Overcast
 3° /-5° 0.4 mm 0 cm
Jan. 11 Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-4° 8.6 mm 5.2 cm
Jan. 12 Light freezing rain
Light freezing rain
 1° /-4° 1 mm 0 cm
Jan. 13 Overcast
Overcast
 2° /-3° 0 mm 0 cm
Jan. 14 Overcast
Overcast
 5° /-4° 0 mm 0 cm
Jan. 15 Sunny
Sunny
 4° /-5° 0 mm 0 cm
Jan. 16 Cloudy
Cloudy
 1° /-6° 0 mm 0 cm
Jan. 17 Overcast
Overcast
 0° /-11° 0.2 mm 0 cm
Jan. 18 Overcast
Overcast
 -11° /-16° 0.6 mm 0 cm
Jan. 19 Sunny
Sunny
 -1° /-6° 0 mm 0 cm
Jan. 20 Sunny
Sunny
 3° /-4° 0 mm 0 cm
Jan. 21 Overcast
Overcast
 2° /-4° 0 mm 0 cm
Jan. 22 Light snow
Light snow
 2° /-2° 0.1 mm 0.1 cm
Jan. 23 Moderate or heavy snow showers
Moderate or heavy snow showers
 -1° /-7° 1.7 mm 1.2 cm
Jan. 24 Overcast
Overcast
 2° /-4° 0 mm 0 cm
Jan. 25 Patchy moderate snow
Patchy moderate snow
 4° /-3° 0.5 mm 0.4 cm
Jan. 26 Light snow
Light snow
 2° /-3° 0.2 mm 0.1 cm
Jan. 27 Sunny
Sunny
 1° /-4° 0 mm 0 cm
Jan. 28 Sunny
Sunny
 2° /-4° 0 mm 0 cm
Jan. 29 Sunny
Sunny
 6° /-3° 0 mm 0 cm
Jan. 30 Partly cloudy
Partly cloudy
 0° /-3° 0 mm 0 cm
Jan. 31 Overcast
Overcast
 1° /-7° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Gallatin County in January 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 Gallatin County forecast closer to your planned date for the most up-to-date weather information.
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Gallatin County in January - FAQ

What are the expected maximum and minimum temperatures in Gallatin County during January?

Brace for cold days with temperatures not exceeding -2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Gallatin County during January?

In January, Gallatin County can expect light to moderate rainfall, totaling 47.7 mm across approximately 9 days. Occasional showers are possible, and planning ahead for them could be helpful.

Will it snow in Gallatin County in January 2026?

Gallatin County experiences an average snowfall of 19 cm during January, occurring over 7 days.

What are the typical wind conditions in Gallatin County during January?

The average wind speed in Gallatin County during January is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

Gallatin County snow forecast January 2026

Track daily snowfall levels and discover Gallatin County’s snowy potential this January ❄️
On average, Gallatin County sees 7 snowy days during January, with approximately 19 cm of total snowfall.

January rainfall patterns in Gallatin County

Explore the daily rainfall trends and prepare for Gallatin Countys January weather 💧
Typically, Gallatin County has 9 rainy days in January with a total of 47.7 mm of rainfall.
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Bozeman
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Location coordinates Where is Gallatin County?

Get accurate weather forecasts for Gallatin County, located at latitude 45.68 and longitude -111.039. Stay updated with localized weather information tailored for Gallatin County.

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