UV Index for Colby, WI

Current Colby UV Index

0.4 (Low)

Last Updated 45 seconds ago

Hourly Colby UV Index

The hourly Colby, WI UV Index forecast for Monday, July 7th, 2025.

5 Day Hourly Colby UV Index Forecast

Last Updated 18 hours ago

The UV index forecast for the next five days in Colby, WI has no days reaching the extreme level and 2 days reaching the high or very high levels. The peak UV intensity in Colby over the next five days will be 8.9 on Wednesday, July 9th at 1:00 pm.

The UV index forecast for Monday, July 7th in Colby, WI is below.

Time UV Index Risk
8am 1.3
Low
9am 2.7
Low
10am 4.6
Moderate
11am 6.5
High
12pm 7.8
High
1pm 7.3
High
2pm 6.7
High
3pm 5.7
Moderate
4pm 3.8
Moderate
5pm 1.2
Low
6pm 0.4
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, July 8th in Colby, WI 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 1.2
Low
9am 2.6
Low
10am 3.3
Moderate
11am 3.1
Moderate
12pm 3.8
Moderate
1pm 3.4
Moderate
2pm 4
Moderate
3pm 3.2
Moderate
4pm 3.8
Moderate
5pm 2.5
Low
6pm 1.4
Low
7pm 0.5
Low
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, July 9th in Colby, WI 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 0.5
Low
8am 1.4
Low
9am 2.9
Low
10am 4.9
Moderate
11am 6.8
High
12pm 8.4
Very High
1pm 8.9
Very High
2pm 8.4
Very High
3pm 7
High
4pm 5
Moderate
5pm 3
Moderate
6pm 1.5
Low
7pm 0.5
Low
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, July 10th in Colby, WI 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 0.5
Low