Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be -12°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

Friday
12th Dec
-12

-14

0

1
Saturday
13th Dec
3

-14

4

1
Sunday
14th Dec
9

4

5

1
Monday
15th Dec
11

5

6

1
Tuesday
16th Dec
11

4

5

1

5-day weather forecast updated at 04:01 on Friday 12th 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 Friday 12th December 2025

Expect cloudy with some snow in Great Falls, Montana with a maximum temperature of -12°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 cm of snow expected with 84% chance of some snow and a gentle breeze of 19 kph from the north-east.

-12
°C maximum temperature
-14
°C minimum temperature
cloudy with some snow
0
hours of sunshine
1
UV index (Low)
84
% chance of some snow
<10
cm of snow expected
-20
°C wind chill
19
kph wind from NE

Great Falls weather for Saturday 13th December 2025

Expect broken clouds in Great Falls, Montana with a maximum temperature of 3°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the east.

3
°C maximum temperature
-14
°C minimum temperature
broken clouds
4
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
-2
°C wind chill
27
kph wind from E

Great Falls weather for Sunday 14th December 2025

Expect broken clouds in Great Falls, Montana with a maximum temperature of 9°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the south-west.

9
°C maximum temperature
4
°C minimum temperature
broken clouds
5
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
5
°C wind chill
27
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, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 41 kph from the south-west.

11
°C maximum temperature
5
°C minimum temperature
broken clouds
6
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
11
°C wind chill
41
kph wind from SW

Great Falls weather for Tuesday 16th December 2025

Expect broken 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 strong breeze of 44 kph from the south-west.