Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 21°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

Wednesday
22nd Apr
21

2

9

6
Thursday
23rd Apr
5

-1

1

3
Friday
24th Apr
3

-3

2

2
Saturday
25th Apr
3

-5

4

4
Sunday
26th Apr
5

-7

4

5

5-day weather forecast updated at 04:00 on Wednesday 22nd 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 Wednesday 22nd April 2026

Expect cloudy with sleet or snow in Great Falls, Montana with a maximum temperature of 21°C, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 10-20 mm of sleet/snow expected with 96% chance of some sleet or snow and a fresh breeze of 37 kph from the south-west.

21
°C maximum temperature
2
°C minimum temperature
cloudy with sleet or snow
9
hours of sunshine
6
UV index (High)
96
% chance of some sleet or snow
<20
mm of sleet/snow expected
21
°C wind chill
37
kph wind from SW

Great Falls weather for Thursday 23rd April 2026

Expect cloudy with sleet or snow in Great Falls, Montana with a maximum temperature of 5°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of sleet/snow expected with 64% chance of some sleet or snow and a fresh breeze of 36 kph from the north-west.

5
°C maximum temperature
-1
°C minimum temperature
cloudy with sleet or snow
1
hour of sunshine
3
UV index (Moderate)
64
% chance of some sleet or snow
<10
mm of sleet/snow expected
0
°C wind chill
36
kph wind from NW

Great Falls weather for Friday 24th April 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 3°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 31 kph from the north-west.

3
°C maximum temperature
-3
°C minimum temperature
broken clouds
2
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
-2
°C wind chill
31
kph wind from NW

Great Falls weather for Saturday 25th April 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 3°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the north-west.

3
°C maximum temperature
-5
°C minimum temperature
broken clouds
4
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
-2
°C wind chill
20
kph wind from NW

Great Falls weather for Sunday 26th April 2026

Expect broken clouds in Great Falls, Montana with a maximum temperature of 5°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north.