Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 27°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

Sunday
4th Oct
27

4

11

4
Monday
5th Oct
28

11

11

4
Tuesday
6th Oct
25

8

9

4
Wednesday
7th Oct
24

5

11

4
Thursday
8th Oct
19

6

10

3

5-day weather forecast updated at 04:00 on Monday 5th October 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 4th October 2026

Expect clear skies in Great Falls, Montana with a maximum temperature of 27°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.

27
°C maximum temperature
4
°C minimum temperature
clear skies
11
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
27
°C wind chill
14
kph wind from SW

Great Falls weather for Monday 5th October 2026

Expect clear skies in Great Falls, Montana with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the south-west.

28
°C maximum temperature
11
°C minimum temperature
clear skies
11
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
L
low heat & humidity
26
kph wind from SW

Great Falls weather for Tuesday 6th October 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 25°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the south-west.

25
°C maximum temperature
8
°C minimum temperature
scattered clouds
9
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
25
°C wind chill
19
kph wind from SW

Great Falls weather for Wednesday 7th October 2026

Expect clear skies in Great Falls, Montana with a maximum temperature of 24°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-east.

24
°C maximum temperature
5
°C minimum temperature
clear skies
11
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
24
°C wind chill
14
kph wind from NE

Great Falls weather for Thursday 8th October 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-west.