Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 22°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

Friday
26th Jun
22

13

2

7
Saturday
27th Jun
19

12

3

6
Sunday
28th Jun
16

9

0

2
Monday
29th Jun
12

8

0

3
Tuesday
30th Jun
20

9

5

7

5-day weather forecast updated at 04:00 on Friday 26th June 2026 GMT

More about Great Falls

Great Falls by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Montana

Crystal Ski: Top ski deals to USA

Sale

Save on skiing holidays to the USA in winter 2025/2026
Book early with Crystal Ski for the best deals
Filter by promotional offers, duration, board basis & more

Go to Crystal Ski deal >>

View all Crystal Ski offers

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 26th June 2026

Expect isolated thunderstorms in Great Falls, Montana with a maximum temperature of 22°C, maximum UV of 7 (High) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 16 kph from the west.

22
°C maximum temperature
13
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
7
UV index (High)
79
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
16
kph wind from W

Great Falls weather for Saturday 27th June 2026

Expect isolated thunderstorms in Great Falls, Montana with a maximum temperature of 19°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 52% chance of some rain and a gentle breeze of 17 kph from the south-west.

19
°C maximum temperature
12
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
6
UV index (High)
52
% chance of some rain
<5
mm of rainfall expected
19
°C wind chill
17
kph wind from SW

Great Falls weather for Sunday 28th June 2026

Expect isolated thunderstorms in Great Falls, Montana with a maximum temperature of 16°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 77% chance of some rain and a moderate breeze of 28 kph from the south-west.

16
°C maximum temperature
9
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
2
UV index (Low)
77
% chance of some rain
<10
mm of rainfall expected
16
°C wind chill
28
kph wind from SW

Great Falls weather for Monday 29th June 2026

Expect cloudy with some rain in Great Falls, Montana with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 79% chance of some rain and a fresh breeze of 34 kph from the south-west.

12
°C maximum temperature
8
°C minimum temperature
cloudy with some rain
0
hours of sunshine
3
UV index (Moderate)
79
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
34
kph wind from SW

Great Falls weather for Tuesday 30th June 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 20°C, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 28 kph from the south-west.