Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 16°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

Saturday
30th May
16

11

0

3
Sunday
31st May
11

8

0

1
Monday
1st Jun
13

7

1

2
Tuesday
2nd Jun
17

6

3

3
Wednesday
3rd Jun
21

8

9

6

5-day weather forecast updated at 04:00 on Saturday 30th May 2026 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 Saturday 30th May 2026

Expect cloudy with some rain in Great Falls, Montana with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 96% chance of some rain and a moderate breeze of 24 kph from the north-west.

16
°C maximum temperature
11
°C minimum temperature
cloudy with some rain
0
hours of sunshine
3
UV index (Moderate)
96
% chance of some rain
<20
mm of rainfall expected
16
°C wind chill
24
kph wind from NW

Great Falls weather for Sunday 31st May 2026

Expect cloudy with some rain in Great Falls, Montana with a maximum temperature of 11°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 40-50 mm of rainfall expected with 97% chance of some rain and a moderate breeze of 26 kph from the west.

11
°C maximum temperature
8
°C minimum temperature
cloudy with some rain
0
hours of sunshine
1
UV index (Low)
97
% chance of some rain
<50
mm of rainfall expected
0
no heat & humidity
26
kph wind from W

Great Falls weather for Monday 1st June 2026

Expect mostly cloudy with rain in Great Falls, Montana with a maximum temperature of 13°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 56% chance of some rain and a moderate breeze of 20 kph from the west.

13
°C maximum temperature
7
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
2
UV index (Low)
56
% chance of some rain
<10
mm of rainfall expected
13
°C wind chill
20
kph wind from W

Great Falls weather for Tuesday 2nd June 2026

Expect mostly cloudy with light rain in Great Falls, Montana with a maximum temperature of 17°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 40% chance of some rain and a gentle breeze of 16 kph from the west.

17
°C maximum temperature
6
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
3
UV index (Moderate)
40
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
16
kph wind from W

Great Falls weather for Wednesday 3rd June 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 21°C, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-east.