Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 14°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

Saturday
18th Apr
14

-4

13

6
Sunday
19th Apr
20

-2

13

7
Monday
20th Apr
23

4

13

6
Tuesday
21st Apr
26

6

9

7
Wednesday
22nd Apr
24

6

6

4

5-day weather forecast updated at 04:00 on Saturday 18th 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 Saturday 18th April 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 14°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.

14
°C maximum temperature
-4
°C minimum temperature
scattered clouds
13
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
22
kph wind from SW

Great Falls weather for Sunday 19th April 2026

Expect clear skies in Great Falls, Montana with a maximum temperature of 20°C, maximum UV of 7 (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.

20
°C maximum temperature
-2
°C minimum temperature
clear skies
13
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
20
°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 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south-west.

23
°C maximum temperature
4
°C minimum temperature
scattered clouds
13
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
23
°C wind chill
18
kph wind from SW

Great Falls weather for Tuesday 21st April 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 26°C, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.

26
°C maximum temperature
6
°C minimum temperature
scattered clouds
9
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
26
°C wind chill
16
kph wind from SW

Great Falls weather for Wednesday 22nd April 2026

Expect sunshine and showers in Great Falls, Montana with a maximum temperature of 24°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 71% chance of some rain and a fresh breeze of 29 kph from the north-west.