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Weather in Montana for May 2027

Your guide to Montana weather in May - trends and predictions

    Rain 🌧️

  • Montana experiences moderate rainfall in May, with an average of 10 rainy days and a total precipitation of 68.9 mm.

    • More

  • Is May a good time to visit Montana? check out the best time to travel to Montana page.

  • ✨ Is May a good time to visit Montana? – Ask the AI Weatherman

Average dry days
21
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/4°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
61 %
Avg humidity

Montana Weather May

Move between months or click on a day
April
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
15°
2
Sunny
18°
3
Partly cloudy
19°
4
Light rain
14°
5
Moderate rain
7°
6
Patchy rain possible
12°
7
Patchy rain possible
17°
8
Sunny
19°
9
Sunny
18°
10
Sunny
24°
11
Patchy rain possible
22°
12
Overcast
22°
13
Moderate rain at times
18°
14
Light rain
11°
15
Patchy rain possible
11°
16
Light rain
11°
17
Light rain
11°
18
Heavy rain at times
8°
19
Overcast
12°
20
Light rain
12°
21
Patchy rain possible
12°
22
Patchy rain possible
15°
23
Patchy rain possible
18°
24
Partly cloudy
20°
25
Mist
21°
26
Patchy rain possible
23°
27
Thundery outbreaks possible
21°
28
Sunny
24°
29
Partly cloudy
25°
30
Moderate rain
16°
31
Light rain
19°

What’s the Weather Like in Montana This May?

Discover the average temperatures and weather trends across Montana’s cities this May.
Patchy rain possibleBozeman16 °C / 4 °CPatchy rain possibleBillings21 °C / 7 °CPatchy rain possibleMissoula19 °C / 6 °CPatchy rain possibleGlacier National Park18 °C / 6 °CPatchy rain possibleGreat Falls20 °C / 7 °CPatchy rain possibleButte16 °C / 2 °CPatchy rain possibleHelena19 °C / 5 °CPatchy rain possibleBig Sky10 °C / -1 °CMore Locations

Temperatures trend during May in Montana

See the weather trend as well as the moving average line

May weather in Montana day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
May 1 Sunny
Sunny
 15° /2° 0 mm 0 cm
May 2 Sunny
Sunny
 18° /3° 0 mm 0 cm
May 3 Partly cloudy
Partly cloudy
 19° /5° 0 mm 0 cm
May 4 Light rain
Light rain
 14° /5° 4.8 mm 0 cm
May 5 Moderate rain
Moderate rain
 7° /0° 10.8 mm 0 cm
May 6 Patchy rain possible
Patchy rain possible
 12° /-2° 1.2 mm 0 cm
May 7 Patchy rain possible
Patchy rain possible
 17° /3° 1.5 mm 0 cm
May 8 Sunny
Sunny
 19° /5° 0 mm 0 cm
May 9 Sunny
Sunny
 18° /5° 0 mm 0 cm
May 10 Sunny
Sunny
 24° /7° 0 mm 0 cm
May 11 Patchy rain possible
Patchy rain possible
 22° /11° 0.3 mm 0 cm
May 12 Overcast
Overcast
 22° /5° 0.2 mm 0 cm
May 13 Moderate rain at times
Moderate rain at times
 18° /6° 5.2 mm 0 cm
May 14 Light rain
Light rain
 11° /4° 3.2 mm 0 cm
May 15 Patchy rain possible
Patchy rain possible
 11° /3° 1.2 mm 0 cm
May 16 Light rain
Light rain
 11° /1° 4.5 mm 0 cm
May 17 Light rain
Light rain
 11° /2° 2.9 mm 0 cm
May 18 Heavy rain at times
Heavy rain at times
 8° /1° 7.8 mm 0.4 cm
May 19 Overcast
Overcast
 12° /-1° 0.2 mm 0 cm
May 20 Light rain
Light rain
 12° /2° 3.3 mm 0 cm
May 21 Patchy rain possible
Patchy rain possible
 12° /0° 0.7 mm 0 cm
May 22 Patchy rain possible
Patchy rain possible
 15° /2° 1.4 mm 0 cm
May 23 Patchy rain possible
Patchy rain possible
 18° /3° 0.5 mm 0 cm
May 24 Partly cloudy
Partly cloudy
 20° /6° 0 mm 0 cm
May 25 Mist
Mist
 21° /5° 0 mm 0 cm
May 26 Patchy rain possible
Patchy rain possible
 23° /6° 1.6 mm 0 cm
May 27 Thundery outbreaks possible
Thundery outbreaks possible
 21° /9° 1.5 mm 0 cm
May 28 Sunny
Sunny
 24° /8° 0.1 mm 0 cm
May 29 Partly cloudy
Partly cloudy
 25° /8° 0.4 mm 0 cm
May 30 Moderate rain
Moderate rain
 16° /9° 11.7 mm 0 cm
May 31 Light rain
Light rain
 19° /7° 4 mm 0 cm
Next
Important Notice
Our weather forecast for Montana in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Montana forecast closer to your planned date for the most up-to-date weather information.
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Montana in May - FAQ

What are the expected maximum and minimum temperatures in Montana during May?
During May, expect a variety of temperatures with highs around 16° and lows near 4°, suitable for diverse activities and preferences.

How much rainfall should be expected in Montana during May?
Moderate rainfall is anticipated in Montana during May, with a total of 68.9 mm spread over approximately 10 days. Considering plans for rainy days is advisable.

Will it snow in Montana in May 2027?
Montana typically sees 0.4 cm of snowfall during May.

What are the typical wind conditions in Montana during May?
The average wind speed in Montana during May is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

Montana snow forecast May 2027

Track daily snowfall levels and discover Montana’s snowy potential this May ❄️

May rainfall patterns in Montana

Explore the daily rainfall trends and prepare for Montanas May weather 💧
Typically, Montana has 10 rainy days in May with a total of 68.9 mm of rainfall.

UV exposure in Montana during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Counties in Montana
Select a county for an accurate weather forecast
Cascade CountyFlathead CountyGallatin CountyLewis and Clark CountyMissoula CountySilver Bow CountyYellowstone County
Top locations in Montana
Select a location for an accurate weather forecast
Big SkyBillingsBozemanButteGlacier National ParkGreat FallsHelenaMissoula
More Locations
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