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.

Sunday
14th Jun
21

6

13

8
Monday
15th Jun
24

8

10

8
Tuesday
16th Jun
28

15

6

9
Wednesday
17th Jun
19

11

7

7
Thursday
18th Jun
22

9

13

8

5-day weather forecast updated at 04:00 on Sunday 14th 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 Sunday 14th June 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 21°C, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south-west.

21
°C maximum temperature
6
°C minimum temperature
scattered clouds
13
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
21
°C wind chill
10
kph wind from SW

Great Falls weather for Monday 15th June 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 24°C, maximum UV of 8 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.

24
°C maximum temperature
8
°C minimum temperature
scattered clouds
10
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from SW

Great Falls weather for Tuesday 16th June 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 41 kph from the west.

28
°C maximum temperature
15
°C minimum temperature
broken clouds
6
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
41
kph wind from W

Great Falls weather for Wednesday 17th June 2026

Expect sunshine and showers in Great Falls, Montana with a maximum temperature of 19°C, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 68% chance of some rain and a moderate breeze of 21 kph from the north-west.

19
°C maximum temperature
11
°C minimum temperature
sunshine and showers
7
hours of sunshine
7
UV index (High)
68
% chance of some rain
<5
mm of rainfall expected
19
°C wind chill
21
kph wind from NW

Great Falls weather for Thursday 18th June 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 22°C, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.