UV Index for Grafton, MN

Current Grafton UV Index

0 (Low)

Last Updated 52 minutes ago

Hourly Grafton UV Index

The hourly Grafton, MN UV Index forecast for Wednesday, September 3rd, 2025.

5 Day Hourly Grafton UV Index Forecast

Last Updated 18 hours ago

The UV index forecast for the next five days in Grafton, MN has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Grafton over the next five days will be 5.9 on Thursday, September 4th at 1:00 pm.

The UV index forecast for Wednesday, September 3rd in Grafton, MN is below.

Time UV Index Risk
8am 0.1
Low
9am 0.5
Low
10am 2
Low
11am 3.2
Moderate
12pm 3.2
Moderate
1pm 4.7
Moderate
2pm 4.4
Moderate
3pm 4.2
Moderate
4pm 3.1
Moderate
5pm 1.7
Low
6pm 0.7
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, September 4th in Grafton, MN 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 0.2
Low
9am 0.8
Low
10am 2.1
Low
11am 3.4
Moderate
12pm 5
Moderate
1pm 5.9
Moderate
2pm 5.7
Moderate
3pm 4.6
Moderate
4pm 3.2
Moderate
5pm 1.5
Low
6pm 0.5
Low
7pm 0.1
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, September 5th in Grafton, MN 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 0.2
Low
9am 0.7
Low
10am 1.1
Low
11am 3.1
Moderate
12pm 4.7
Moderate
1pm 5.4
Moderate
2pm 5
Moderate
3pm 4.2
Moderate
4pm 2.7
Low
5pm 0.7
Low
6pm 0.2
Low
7pm 0.1
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, September 6th in Grafton, MN 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