Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be -1°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

Sunday
15th Mar
-1

-19

10

4
Monday
16th Mar
7

-5

3

5
Tuesday
17th Mar
13

7

1

3
Wednesday
18th Mar
15

7

6

2
Thursday
19th Mar
18

9

8

4

5-day weather forecast updated at 04:00 on Monday 16th 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 Sunday 15th March 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of -1°C, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 16 kph from the south-west.

-1
°C maximum temperature
-19
°C minimum temperature
scattered clouds
10
hours of sunshine
4
UV index (Moderate)
0
cm of snow expected
-6
°C wind chill
16
kph wind from SW

Great Falls weather for Monday 16th March 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 7°C, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 43 kph from the south-west.

7
°C maximum temperature
-5
°C minimum temperature
broken clouds
3
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
2
°C wind chill
43
kph wind from SW

Great Falls weather for Tuesday 17th March 2026

Expect overcast skies in Great Falls, Montana with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 45 kph from the south-west.

13
°C maximum temperature
7
°C minimum temperature
overcast skies
1
hour of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
13
°C wind chill
45
kph wind from SW

Great Falls weather for Wednesday 18th March 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 15°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 39 kph from the south-west.

15
°C maximum temperature
7
°C minimum temperature
broken clouds
6
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
39
kph wind from SW

Great Falls weather for Thursday 19th March 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 44 kph from the south-west.