UV Index for Westby, MT

Current Westby UV Index

0 (Low)

Last Updated 9 minutes ago

Hourly Westby UV Index

The hourly Westby, MT UV Index forecast for Friday, July 4th, 2025.

5 Day Hourly Westby UV Index Forecast

Last Updated 12 hours ago

The UV index forecast for the next five days in Westby, MT has no days reaching the extreme level and 2 days reaching the high or very high levels. The peak UV intensity in Westby over the next five days will be 8 on Sunday, July 6th at 1:00 pm.

The UV index forecast for Friday, July 4th in Westby, MT is below.

Time UV Index Risk
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0.2
Low
7am 0.6
Low
8am 1.7
Low
9am 3.1
Moderate
10am 4.8
Moderate
11am 6.5
High
12pm 7.5
High
1pm 7.8
High
2pm 5.3
Moderate
3pm 3.8
Moderate
4pm 2.9
Low
5pm 1.7
Low
6pm 0.8
Low
7pm 0.4
Low
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, July 5th in Westby, 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 0.2
Low
7am 0.5
Low
8am 1.2
Low
9am 2.8
Low
10am 4.4
Moderate
11am 5.5
Moderate
12pm 2.3
Low
1pm 3.4
Moderate
2pm 4.9
Moderate
3pm 3.7
Moderate
4pm 4.1
Moderate
5pm 2.4
Low
6pm 1.3
Low
7pm 0.5
Low
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, July 6th in Westby, 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 0.2
Low
7am 0.5
Low
8am 1.1
Low
9am 2.3
Low
10am 4.3
Moderate
11am 6.1
High
12pm 7.4
High
1pm 8
Very High
2pm 7.5
High
3pm 5.7
Moderate
4pm 4.1
Moderate
5pm 2.4
Low
6pm 1.4
Low
7pm 0.6
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, July 7th in Westby, 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 0.2
Low