UV Index for Johnsville, CA

Current Johnsville UV Index

0 (Low)

Last Updated 58 minutes ago

Hourly Johnsville UV Index

The hourly Johnsville, CA UV Index forecast for Thursday, May 22nd, 2025.

5 Day Hourly Johnsville UV Index Forecast

Last Updated 10 hours ago

The UV index forecast for the next five days in Johnsville, CA has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Johnsville over the next five days will be 9.5 on Thursday, May 22nd at 1:00 pm.

The UV index forecast for Thursday, May 22nd in Johnsville, CA is below.

Time UV Index Risk
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, May 23rd in Johnsville, CA 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 7.6
High
1pm 8.3
Very High
2pm 7.6
High
3pm 6.4
High
4pm 4.4
Moderate
5pm 2.6
Low
6pm 1.1
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, May 24th in Johnsville, CA 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 2.5
Low
10am 4.4
Moderate
11am 6.5
High
12pm 8.1
Very High
1pm 8.8
Very High
2pm 8.4
Very High
3pm 6.9
High
4pm 4.9
Moderate
5pm 2.9
Low
6pm 1.3
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, May 25th in Johnsville, CA 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 0.4
Low
8am 1.2
Low
9am 2.6
Low
10am 4.7
Moderate
11am 6.9
High
12pm 8.8
Very High
1pm 9.5
Very High
2pm 8.8
Very High
3pm 7.1
High
4pm 4.6
Moderate
5pm 2.7
Low
6pm 1.2
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, May 26th in Johnsville, CA is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low