June weather forecastMissoula, MT

June
Weather in June
June brings a summer environment to Missoula, as temperatures continue their upward trend from May. The clear, sunny skies contrast the gloomier atmosphere experienced in July, although the relative humidity and rainfall levels share similar measurements. Missoula's landscape also transforms, basking in increased sunshine and longer daylight hours. This shift enhances the outdoor conditions, enabling more activities during this month. With the highest temperatures ranging from 40.6°F (4.8°C) to 68.5°F (20.3°C), June ushers in a warm and welcoming atmosphere indicative of summer.Temperature
June's arrival coincides with a subtle temperature rise, moving from May's moderate 60.3°F (15.7°C) to an agreeable 68.5°F (20.3°C). In the face of high daytime temperatures, Missoula witnesses a consistent average nighttime low of 40.6°F (4.8°C) during June.Humidity
The average relative humidity in June in Missoula is 63%.Rainfall
In Missoula, in June, during 5.9 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, in Missoula, there are 67.5 rainfall days, and 3.27" (83mm) of precipitation is accumulated.Snowfall
In Missoula, Montana, snow does not fall in June through August.Daylight
June has the longest days of the year, with an average of 15h and 48min of daylight.On the first day of the month, sunrise is at 5:44 am and sunset at 9:23 pm. On the last day of June, sunrise is at 5:45 am and sunset at 9:34 pm MDT.
Sunshine
In Missoula, the average sunshine in June is 10.8h.UV index
In June, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 5 during June leads to these advisories:
Take measures. Individuals with light skin might experience burns in under 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Missoula, MT
- Average high temperature in June: 68.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is December (28°F).
- Average low temperature in June: 40.6°F
The month with the highest average low temperature is August (46.9°F).
The coldest month (with the lowest average low temperature) is December (15.4°F).
Average pressure in June
Missoula, MT
- Average pressure in June: 29.93"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in June
Missoula, MT
- Average wind speed in June: 4.7mph
The windiest month (with the highest average wind speed) is April (5mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in June
Missoula, MT
- Average humidity in June: 63%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is July (50%).
Average rainfall in June
Missoula, MT
- Average rainfall in June: 0.39"
The wettest month (with the highest rainfall) is April (0.47").
The driest months (with the least rainfall) are July and December (0.16").
Average rainfall days in June
Missoula, MT
- Average rainfall days in June: 5.9 days
The month with the highest number of rainy days is April (8.8 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in June
Missoula, MT
- Average snowfall in June: 0"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July and August (0").
Average snowfall days in June
Missoula, MT
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is December (9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in June /
Average sunshine in June
Missoula, MT
- Average daylight in June: 15h and 48min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in June: 10h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in June
Missoula, MT
- Average sunshine days in June: 21.1 days
The month with the most sunshine days is July (27 days).
The month with the least sunshine days is April (17.8 days).
Average UV index in June
Missoula, MT
- Average UV index in June: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in June
Missoula, MT
- Average cloud cover in June: 30
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in June
Missoula, MT
- Average visibility in June: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).





