Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 19°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

Thursday
19th Mar
19

11

4

4
Friday
20th Mar
21

11

8

4
Saturday
21st Mar
13

1

5

4
Sunday
22nd Mar
12

-1

12

4
Monday
23rd Mar
11

-1

3

4

5-day weather forecast updated at 04:00 on Thursday 19th March 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 Thursday 19th March 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 41 kph from the south-west.

19
°C maximum temperature
11
°C minimum temperature
broken clouds
4
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
41
kph wind from SW

Great Falls weather for Friday 20th March 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 46 kph from the south-west.

21
°C maximum temperature
11
°C minimum temperature
scattered clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
21
°C wind chill
46
kph wind from SW

Great Falls weather for Saturday 21st March 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 13°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 33 kph from the west.

13
°C maximum temperature
1
°C minimum temperature
broken clouds
5
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
13
°C wind chill
33
kph wind from W

Great Falls weather for Sunday 22nd March 2026

Expect clear skies in Great Falls, Montana with a maximum temperature of 12°C, maximum UV of 4 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the south-west.

12
°C maximum temperature
-1
°C minimum temperature
clear skies
12
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
12
°C wind chill
27
kph wind from SW

Great Falls weather for Monday 23rd March 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 11°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south-west.