Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 7°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

Friday
17th Apr
7

-3

2

4
Saturday
18th Apr
15

-1

11

6
Sunday
19th Apr
21

-1

13

6
Monday
20th Apr
23

5

12

6
Tuesday
21st Apr
26

6

6

5

5-day weather forecast updated at 04:05 on Friday 17th April 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 17th April 2026

Expect mostly cloudy with light rain in Great Falls, Montana with a maximum temperature of 7°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 42% chance of some rain and a moderate breeze of 20 kph from the north-west.

7
°C maximum temperature
-3
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
4
UV index (Moderate)
42
% chance of some rain
<2
mm of rainfall expected
3
°C wind chill
20
kph wind from NW

Great Falls weather for Saturday 18th April 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 15°C, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the south-west.

15
°C maximum temperature
-1
°C minimum temperature
scattered clouds
11
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
15
°C wind chill
26
kph wind from SW

Great Falls weather for Sunday 19th April 2026

Expect clear skies 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 moderate breeze of 22 kph from the south-west.

21
°C maximum temperature
-1
°C minimum temperature
clear skies
13
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
21
°C wind chill
22
kph wind from SW

Great Falls weather for Monday 20th April 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 23°C, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the west.

23
°C maximum temperature
5
°C minimum temperature
scattered clouds
12
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
23
°C wind chill
18
kph wind from W

Great Falls weather for Tuesday 21st April 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 26°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south-west.