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.

Tuesday
23rd Jun
21

7

13

6
Wednesday
24th Jun
23

10

13

7
Thursday
25th Jun
22

11

6

4
Friday
26th Jun
23

10

4

4
Saturday
27th Jun
19

11

3

4

5-day weather forecast updated at 04:00 on Tuesday 23rd 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 Tuesday 23rd June 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 21°C, maximum UV of 6 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the east.

21
°C maximum temperature
7
°C minimum temperature
scattered clouds
13
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
17
kph wind from E

Great Falls weather for Wednesday 24th June 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 23°C, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the east.

23
°C maximum temperature
10
°C minimum temperature
scattered clouds
13
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
20
kph wind from E

Great Falls weather for Thursday 25th June 2026

Expect isolated thunderstorms in Great Falls, Montana with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 59% chance of some rain and a light breeze of 12 kph from the south-east.

22
°C maximum temperature
11
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
4
UV index (Moderate)
59
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
12
kph wind from SE

Great Falls weather for Friday 26th June 2026

Expect isolated thunderstorms in Great Falls, Montana with a maximum temperature of 23°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 64% chance of some rain and a gentle breeze of 16 kph from the south-west.

23
°C maximum temperature
10
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
4
UV index (Moderate)
64
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
16
kph wind from SW

Great Falls weather for Saturday 27th June 2026

Expect mostly cloudy with rain in Great Falls, Montana with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 60% chance of some rain and a gentle breeze of 19 kph from the west.