UV Index for Lewiston, UT

Current Lewiston UV Index

0 (Low)

Last Updated 25 seconds ago

Hourly Lewiston UV Index

The hourly Lewiston, UT UV Index forecast for Wednesday, July 30th, 2025.

5 Day Hourly Lewiston UV Index Forecast

Last Updated 10 hours ago

The UV index forecast for the next five days in Lewiston, UT has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Lewiston over the next five days will be 10 on Friday, August 1st at 1:00 pm.

The UV index forecast for Wednesday, July 30th in Lewiston, UT is below.

Time UV Index Risk

The UV index forecast for Thursday, July 31st in Lewiston, UT 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 0.8
Low
9am 2.1
Low
10am 3.3
Moderate
11am 5.3
Moderate
12pm 7
High
1pm 8.8
Very High
2pm 8.6
Very High
3pm 7.8
High
4pm 6.2
High
5pm 4
Moderate
6pm 2
Low
7pm 0.7
Low
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, August 1st in Lewiston, UT 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 0.8
Low
9am 2
Low
10am 4.1
Moderate
11am 6.5
High
12pm 8.7
Very High
1pm 10
Very High
2pm 9.9
Very High
3pm 8.6
Very High
4pm 6.4
High
5pm 4
Moderate
6pm 2
Low
7pm 0.7
Low
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, August 2nd in Lewiston, UT 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 0.7
Low
9am 1.9
Low
10am 3.6
Moderate
11am 5.8
Moderate
12pm 7.8
High
1pm 9.3
Very High
2pm 9.4
Very High
3pm 8.2
Very High
4pm 6.3
High
5pm 3.9
Moderate
6pm 1.9
Low
7pm 0.6
Low
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, August 3rd in Lewiston, UT 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