June weather forecastEureka, MT
June
Weather in June
June escalates the warm weather of May, initiating an enthusiastic entry into summer. With the arrival of this season, one can expect increased visibility up to 6 miles courtesy of clearer skies. Corresponding to the higher temperatures, June also sees a relative reduction in humidity. Underscoring the transition towards dry weather, rainfall also diminishes compared to that in May. The vibrant landscapes of Eureka under extended daylight hours bring photogenic opportunities for nature enthusiasts.Temperature
As June begins in Eureka, there's a slight increase in the average high-temperature, moving from a moderate 59.7°F (15.4°C) in May to a still refreshing 66.6°F (19.2°C). June nights bring a significant cooling from the heat of the day, with averages of 40.5°F (4.7°C).Humidity
In June, the average relative humidity in Eureka is 67%.Rainfall
In June, in Eureka, the rain falls for 14.2 days. Throughout June, 1.46" (37mm) of precipitation is accumulated. In Eureka, during the entire year, the rain falls for 136.3 days and collects up to 15.35" (390mm) of precipitation.Snowfall
June through August are months without snowfall in Eureka.Daylight
With an average of 16h and 6min of daylight, June has the longest days of the year.On the first day of June, sunrise is at 5:40 am and sunset at 9:36 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 9:47 pm MDT.
Sunshine
The average sunshine in June is 10.2h.UV index
In June, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 4 in June translates into the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Eureka, MT
- Average high temperature in June: 66.6°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (25.5°F).
- Average low temperature in June: 40.5°F
The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).
Average pressure in June
Eureka, MT
- Average pressure in June: 29.91"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in June
Eureka, MT
- Average wind speed in June: 4.4mph
The windiest month (with the highest average wind speed) is June (4.4mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).
Average humidity in June
Eureka, MT
- Average humidity in June: 67%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (55%).
Average rainfall in June
Eureka, MT
- Average rainfall in June: 1.46"
The wettest month (with the highest rainfall) is March (1.85").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in June
Eureka, MT
- Average rainfall days in June: 14.2 days
The month with the highest number of rainy days is April (17 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in June
Eureka, MT
- Average snowfall in June: 0"
The month with the highest snowfall is February (10").
The months with the least snowfall are June, July and August (0").
Average snowfall days in June
Eureka, MT
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is December (22.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in June /
Average sunshine in June
Eureka, MT
- Average daylight in June: 16h and 6min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in June: 10h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in June
Eureka, MT
- Average sunshine days in June: 13.1 days
The month with the most sunshine days is August (21.6 days).
The month with the least sunshine days is March (6.3 days).
Average UV index in June
Eureka, MT
- Average UV index in June: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in June
Eureka, MT
- Average cloud cover in June: 34
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in June
Eureka, MT
- Average visibility in June: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).





