Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 36°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

Friday
24th Jul
36

18

12

8
Saturday
25th Jul
38

18

12

8
Sunday
26th Jul
34

17

15

9
Monday
27th Jul
33

16

15

8
Tuesday
28th Jul
33

16

13

9

5-day weather forecast updated at 04:00 on Thursday 23rd July 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 Friday 24th July 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the west.

36
°C maximum temperature
18
°C minimum temperature
scattered clouds
12
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
27
kph wind from W

Great Falls weather for Saturday 25th July 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 38°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 28 kph from the south-west.

38
°C maximum temperature
18
°C minimum temperature
scattered clouds
12
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
28
kph wind from SW

Great Falls weather for Sunday 26th July 2026

Expect clear skies in Great Falls, Montana with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the west.

34
°C maximum temperature
17
°C minimum temperature
clear skies
15
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
26
kph wind from W

Great Falls weather for Monday 27th July 2026

Expect clear skies in Great Falls, Montana with a maximum temperature of 33°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north-west.

33
°C maximum temperature
16
°C minimum temperature
clear skies
15
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from NW

Great Falls weather for Tuesday 28th July 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 33°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north-west.