Overall on the next 14 days there will be 1 days with snow in Missoula and a total of 0.1 cm of snow.
It will be snowy on the following days:
Missoula weather in May 2026
Click on a day for an hourly weather forecast
Thursday
May 14
0 mm
16° / 7°
Friday
May 15
0.8 mm
14° / 2°
Saturday
May 16
2.5 mm
10° / 0°
Sunday
May 17
0.1 cm
11° / -3°
Monday
May 18
0.8 mm
16° / -5°
Tuesday
May 19
4.3 mm
12° / -2°
Wednesday
May 20
0 mm
18° / 0°
Thursday
May 21
0 mm
20° / 1°
Friday
May 22
1.8 mm
20° / 6°
Saturday
May 23
6.8 mm
16° / 3°
Sunday
May 24
8 mm
11° / 4°
Monday
May 25
0 mm
20° / -1°
Tuesday
May 26
0 mm
24° / 4°
Wednesday
May 27
0 mm
23° / 7°
🌨️ Snowy days in Missoula 2026 (May)
The average weather in Missoula in May
The weather in Missoula in May is very cold with temperatures between 0°C and 17°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Missoula during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Please note that Missoula can expect a few days of snow in May.
Our weather forecast can give you a great sense of what weather to expect in Missoula in May 2026.
If you’re planning to visit Missoula in the near future, we highly recommend that you review the 14 day weather forecast for Missoula before you arrive.
Temperatures
17° / 0°
Rainy Days
6
Snowy Days
2
Dry Days
23
Rainfall
42
mm
Sun Hours
6.8
Hrs
Historic average weather for May
Click on a day for an hourly weather forecast
Explore the weather in Missoula in other months
Missoula annual weather
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 1° / -10° | 8 | 6 | 18 | 36 mm | Awful | Missoula in January |
| February | 1° / -11° | 8 | 3 | 19 | 42 mm | Awful | Missoula in February |
| March | 6° / -6° | 8 | 9 | 14 | 40 mm | Awful | Missoula in March |
| April | 10° / -4° | 8 | 13 | 9 | 41 mm | Bad | Missoula in April |
| May | 17° / 0° | 6 | 23 | 2 | 42 mm | Ok | Missoula in May |
| June | 22° / 3° | 6 | 25 | 0 | 40 mm | Good | Missoula in June |
| July | 29° / 7° | 2 | 29 | 0 | 12 mm | Good | Missoula in July |
| August | 29° / 7° | 2 | 29 | 0 | 15 mm | Good | Missoula in August |
| September | 23° / 4° | 2 | 28 | 0 | 19 mm | Perfect | Missoula in September |
| October | 13° / -2° | 5 | 23 | 4 | 35 mm | Bad | Missoula in October |
| November | 5° / -7° | 7 | 12 | 12 | 32 mm | Awful | Missoula in November |
| December | 0° / -11° | 9 | 5 | 18 | 34 mm | Awful | Missoula in December |
Temperatures in Missoula in May
Rain in Missoula in May
Weather in Missoula in May - FAQ
What is the average temperature in Missoula in May?
The average temperature in Missoula in May is 0/17° C.
What is the chance of rain in Missoula in May?
On average, there are 6 rainy days in Missoula during May.
Weather wise, is May a good time to visit Missoula?
The weather in Missoula in May is ok.
Can it snow in Missoula in May?
On average, there are 2 snowy days in Missoula in May.
More about the weather in Missoula