UV Index for Custer, MT

Current Custer UV Index

0.1 (Low)

Last Updated 45 minutes ago

Hourly Custer UV Index

The hourly Custer, MT UV Index forecast for Tuesday, June 24th, 2025.

5 Day Hourly Custer UV Index Forecast

Last Updated 18 hours ago

The UV index forecast for the next five days in Custer, MT has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Custer over the next five days will be 8.5 on Thursday, June 26th at 1:00 pm.

The UV index forecast for Tuesday, June 24th in Custer, MT is below.

Time UV Index Risk
7am 0.4
Low
8am 1.2
Low
9am 2.4
Low
10am 4
Moderate
11am 5.8
Moderate
12pm 7.2
High
1pm 7.9
High
2pm 7.7
High
3pm 6.6
High
4pm 4.8
Moderate
5pm 3
Moderate
6pm 1.6
Low
7pm 0.6
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, June 25th in Custer, 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 0.1
Low
7am 0.4
Low
8am 1.1
Low
9am 2.3
Low
10am 4
Moderate
11am 5.8
Moderate
12pm 7.2
High
1pm 8
Very High
2pm 7.8
High
3pm 6.6
High
4pm 5
Moderate
5pm 3.2
Moderate
6pm 1.7
Low
7pm 0.7
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, June 26th in Custer, 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 0.1
Low
7am 0.4
Low
8am 1.3
Low
9am 2.7
Low
10am 4.6
Moderate
11am 6.4
High
12pm 8.2
Very High
1pm 8.5
Very High
2pm 8.2
Very High
3pm 7.2
High
4pm 5
Moderate
5pm 2.8
Low
6pm 1.5
Low
7pm 0.4
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, June 27th in Custer, 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 0.1
Low