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.

Wednesday
15th Apr
14

3

2

4
Thursday
16th Apr
3

-4

3

3
Friday
17th Apr
7

-6

2

4
Saturday
18th Apr
13

-4

10

6
Sunday
19th Apr
19

-2

13

5

5-day weather forecast updated at 04:00 on Wednesday 15th April 2026 GMT

More about Great Falls

Great Falls by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Montana

Travelsphere sale: up to £800 off worldwide holidays

Sale

Save up to £800 per couple on selected worldwide tours
Plus save up to £200 per couple on European tours
Book 2026 tours online in Travelsphere spring sale

Go to Travelsphere deal >>

Expires at 23:59 on Thursday 30th Apr 2026 · View all Travelsphere offers

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 15th April 2026

Expect cloudy with sleet or snow in Great Falls, Montana with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 68% chance of some sleet or snow and a fresh breeze of 32 kph from the south-west.

14
°C maximum temperature
3
°C minimum temperature
cloudy with sleet or snow
2
hours of sunshine
4
UV index (Moderate)
68
% chance of some sleet or snow
<2
mm of sleet/snow expected
14
°C wind chill
32
kph wind from SW

Great Falls weather for Thursday 16th April 2026

Expect cloudy with sleet or snow in Great Falls, Montana with a maximum temperature of 3°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of sleet/snow expected with 31% chance of some sleet or snow and a moderate breeze of 27 kph from the north-west.

3
°C maximum temperature
-4
°C minimum temperature
cloudy with sleet or snow
3
hours of sunshine
3
UV index (Moderate)
31
% chance of some sleet or snow
<5
mm of sleet/snow expected
-3
°C wind chill
27
kph wind from NW

Great Falls weather for Friday 17th April 2026

Expect mostly cloudy with light snow 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 cm of snow expected with 34% chance of some snow and a gentle breeze of 16 kph from the south-west.

7
°C maximum temperature
-6
°C minimum temperature
mostly cloudy with light snow
2
hours of sunshine
4
UV index (Moderate)
34
% chance of some snow
<2
cm of snow expected
4
°C wind chill
16
kph wind from SW

Great Falls weather for Saturday 18th April 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 13°C, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the south-west.

13
°C maximum temperature
-4
°C minimum temperature
scattered clouds
10
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
27
kph wind from SW

Great Falls weather for Sunday 19th April 2026

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the south-west.