Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 8°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

Sunday
14th Dec
8

-1

5

1
Monday
15th Dec
11

5

3

0
Tuesday
16th Dec
11

5

5

1
Wednesday
17th Dec
9

-3

4

1
Thursday
18th Dec
4

-5

3

1

5-day weather forecast updated at 04:01 on Sunday 14th December 2025 GMT

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The 5-day weather forecast for Montana (Great Falls) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Great Falls weather forecast by day

Below are the detailed weather forecasts for Great Falls for the next 5 days.

Great Falls weather for Sunday 14th December 2025

Expect broken clouds in Great Falls, Montana with a maximum temperature of 8°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 30 kph from the south-west.

8
°C maximum temperature
-1
°C minimum temperature
broken clouds
5
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
5
°C wind chill
30
kph wind from SW

Great Falls weather for Monday 15th December 2025

Expect broken clouds in Great Falls, Montana with a maximum temperature of 11°C and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 47 kph from the south-west.

11
°C maximum temperature
5
°C minimum temperature
broken clouds
3
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
11
°C wind chill
47
kph wind from SW

Great Falls weather for Tuesday 16th December 2025

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 11°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate gale of 52 kph from the south-west.

11
°C maximum temperature
5
°C minimum temperature
scattered clouds
5
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
11
°C wind chill
52
kph wind from SW

Great Falls weather for Wednesday 17th December 2025

Expect cloudy with sleet or snow in Great Falls, Montana with a maximum temperature of 9°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 2-5 mm of sleet/snow expected with 29% chance of some sleet or snow and a moderate gale of 60 kph from the west.

9
°C maximum temperature
-3
°C minimum temperature
cloudy with sleet or snow
4
hours of sunshine
1
UV index (Low)
29
% chance of some sleet or snow
<5
mm of sleet/snow expected
3
°C wind chill
60
kph wind from W

Great Falls weather for Thursday 18th December 2025

Expect cloudy with sleet or snow in Great Falls, Montana with a maximum temperature of 4°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 25% chance of some sleet or snow and a fresh breeze of 31 kph from the south-west.