UV Index for Heart Butte, MT

Current Heart Butte UV Index

8.6 (Very High)

Last Updated 55 minutes ago

Hourly Heart Butte UV Index

The hourly Heart Butte, MT UV Index forecast for Monday, July 14th, 2025.

5 Day Hourly Heart Butte UV Index Forecast

Last Updated 1 day ago

The UV index forecast for the next five days in Heart Butte, MT has no days reaching the extreme level and 1 day reaching the high or very high levels. The peak UV intensity in Heart Butte over the next five days will be 8.8 on Monday, July 14th at 2:00 pm.

The UV index forecast for Monday, July 14th in Heart Butte, MT is below.

Time UV Index Risk
2pm 8.8
Very High
3pm 8.2
Very High
4pm 6.1
High
5pm 2.6
Low
6pm 1.5
Low
7pm 0.6
Low
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, July 15th in Heart Butte, MT is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0
Low
9am 0.1
Low
10am 0.1
Low
11am 0.2
Low
12pm 0.2
Low
1pm 0.2
Low
2pm 0.3
Low
3pm 0.2
Low
4pm 0.2
Low
5pm 0.1
Low
6pm 0.1
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, July 16th in Heart Butte, MT is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.1
Low
9am 0.2
Low
10am 0.5
Low
11am 1.4
Low
12pm 3.2
Moderate
1pm 4.9
Moderate
2pm 5.4
Moderate
3pm 3
Moderate
4pm 1.6
Low
5pm 1.4
Low
6pm 1.4
Low
7pm 0.8
Low
8pm 0.3
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, July 17th in Heart Butte, MT is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low