Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 28°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

Sunday
5th Jul
28

15

15

9
Monday
6th Jul
25

12

1

5
Tuesday
7th Jul
26

15

7

8
Wednesday
8th Jul
30

13

11

8
Thursday
9th Jul
26

13

15

8

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

Expect clear skies in Great Falls, Montana with a maximum temperature of 28°C, low 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 gentle breeze of 17 kph from the north-west.

28
°C maximum temperature
15
°C minimum temperature
clear skies
15
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
17
kph wind from NW

Great Falls weather for Monday 6th July 2026

Expect isolated thunderstorms in Great Falls, Montana with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 71% chance of some rain and a gentle breeze of 17 kph from the north-east.

25
°C maximum temperature
12
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
5
UV index (Moderate)
71
% chance of some rain
<2
mm of rainfall expected
25
°C wind chill
17
kph wind from NE

Great Falls weather for Tuesday 7th July 2026

Expect isolated thunderstorms in Great Falls, Montana with a maximum temperature of 26°C, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 27% chance of some rain and a gentle breeze of 15 kph from the east.

26
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
8
UV index (Very High)
27
% chance of some rain
<10
mm of rainfall expected
26
°C wind chill
15
kph wind from E

Great Falls weather for Wednesday 8th July 2026

Expect isolated thunderstorms in Great Falls, Montana with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0-2 mm of rainfall expected with 49% chance of some rain and a gentle breeze of 18 kph from the south-west.

30
°C maximum temperature
13
°C minimum temperature
isolated thunderstorms
11
hours of sunshine
8
UV index (Very High)
49
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from SW

Great Falls weather for Thursday 9th July 2026

Expect clear skies in Great Falls, Montana with a maximum temperature of 26°C, maximum UV of 8 (Very High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the west.