Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 21°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

Thursday
11th Jun
21

9

9

6
Friday
12th Jun
20

8

7

7
Saturday
13th Jun
15

8

4

5
Sunday
14th Jun
19

6

9

8
Monday
15th Jun
22

8

2

7

5-day weather forecast updated at 04:00 on Thursday 11th June 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 Thursday 11th 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 moderate breeze of 26 kph from the west.

21
°C maximum temperature
9
°C minimum temperature
broken clouds
9
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
21
°C wind chill
26
kph wind from W

Great Falls weather for Friday 12th June 2026

Expect sunshine and showers in Great Falls, Montana with a maximum temperature of 20°C, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 67% chance of some rain and a moderate breeze of 23 kph from the north.

20
°C maximum temperature
8
°C minimum temperature
sunshine and showers
7
hours of sunshine
7
UV index (High)
67
% chance of some rain
<5
mm of rainfall expected
20
°C wind chill
23
kph wind from N

Great Falls weather for Saturday 13th June 2026

Expect mostly cloudy with rain in Great Falls, Montana with a maximum temperature of 15°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 26% chance of some rain and a gentle breeze of 18 kph from the north.

15
°C maximum temperature
8
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
5
UV index (Moderate)
26
% chance of some rain
<10
mm of rainfall expected
15
°C wind chill
18
kph wind from N

Great Falls weather for Sunday 14th June 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 19°C, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north.

19
°C maximum temperature
6
°C minimum temperature
broken clouds
9
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from N

Great Falls weather for Monday 15th June 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 22°C, maximum UV of 7 (High) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.