UV Index for Jefferson, IA

Current Jefferson UV Index

0.2 (Low)

Last Updated 29 minutes ago

Hourly Jefferson UV Index

The hourly Jefferson, IA UV Index forecast for Friday, July 4th, 2025.

5 Day Hourly Jefferson UV Index Forecast

Last Updated 6 hours ago

The UV index forecast for the next five days in Jefferson, IA has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Jefferson over the next five days will be 10.2 on Friday, July 4th at 1:00 pm.

The UV index forecast for Friday, July 4th in Jefferson, IA is below.

Time UV Index Risk
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, July 5th in Jefferson, IA 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 0.2
Low
8am 1.1
Low
9am 2.8
Low
10am 4.9
Moderate
11am 5.7
Moderate
12pm 8.7
Very High
1pm 6.6
High
2pm 6.6
High
3pm 4.8
Moderate
4pm 4.1
Moderate
5pm 2.4
Low
6pm 2
Low
7pm 0.8
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, July 6th in Jefferson, IA 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 1.1
Low
9am 2.6
Low
10am 4.6
Moderate
11am 6.8
High
12pm 8.8
Very High
1pm 9.6
Very High
2pm 9.2
Very High
3pm 7.6
High
4pm 5.7
Moderate
5pm 3.5
Moderate
6pm 1.8
Low
7pm 0.7
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, July 7th in Jefferson, IA 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
Low
10am 3.9
Moderate
11am 6.9
High
12pm 8.8
Very High
1pm 8.9
Very High
2pm 8.4
Very High
3pm 6.6
High
4pm 5.2
Moderate
5pm 3.4
Moderate
6pm 1.9
Low
7pm 0.7
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, July 8th in Jefferson, IA 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