UV Index for Helena, MT

Current Helena UV Index

0.4 (Low)

Last Updated 21 minutes ago

Hourly Helena UV Index

The hourly Helena, MT UV Index forecast for Tuesday, July 1st, 2025.

5 Day Hourly Helena UV Index Forecast

Last Updated 19 hours ago

The UV index forecast for the next five days in Helena, MT has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Helena over the next five days will be 10.5 on Tuesday, July 1st at 2:00 pm.

The UV index forecast for Tuesday, July 1st in Helena, MT is below.

Time UV Index Risk
8am 1.2
Low
9am 2.7
Low
10am 4.8
Moderate
11am 7.1
High
12pm 9.2
Very High
1pm 10.4
Very High
2pm 10.5
Very High
3pm 9.2
Very High
4pm 7.1
High
5pm 4.8
Moderate
6pm 2.6
Low
7pm 0.9
Low
8pm 0.3
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, July 2nd in Helena, 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 0.4
Low
8am 1.1
Low
9am 2.6
Low
10am 4
Moderate
11am 6.1
High
12pm 5
Moderate
1pm 9.3
Very High
2pm 6.7
High
3pm 6.8
High
4pm 0.8
Low
5pm 1.1
Low
6pm 1.6
Low
7pm 1.1
Low
8pm 0.4
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, July 3rd in Helena, 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 0.3
Low
8am 1
Low
9am 2.4
Low
10am 4.1
Moderate
11am 6.2
High
12pm 8.1
Very High
1pm 9.3
Very High
2pm 8.9
Very High
3pm 7.4
High
4pm 6.4
High
5pm 3.3
Moderate
6pm 2.4
Low
7pm 1.1
Low
8pm 0.3
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, July 4th in Helena, 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