UV Index for Johnsville, CA

Current Johnsville UV Index

0 (Low)

Last Updated 34 minutes ago

Hourly Johnsville UV Index

The hourly Johnsville, CA UV Index forecast for Saturday, February 7th, 2026.

5 Day Hourly Johnsville UV Index Forecast

Last Updated 17 hours ago

The UV index forecast for the next five days in Johnsville, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Johnsville over the next five days will be 3.3 on Sunday, February 8th at 12:00 pm.

The UV index forecast for Saturday, February 7th in Johnsville, CA is below.

Time UV Index Risk
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.3
Low
9am 1
Low
10am 1.9
Low
11am 2.7
Low
12pm 2.9
Low
1pm 2.6
Low
2pm 2
Low
3pm 1.1
Low
4pm 0.4
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, February 8th 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
Low
8am 0.4
Low
9am 1
Low
10am 2
Low
11am 2.9
Low
12pm 3.3
Moderate
1pm 3
Moderate
2pm 2.1
Low
3pm 1.2
Low
4pm 0.4
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, February 9th 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
Low
8am 0
Low
9am 0.2
Low
10am 0.2
Low
11am 0.3
Low
12pm 0.4
Low
1pm 0.8
Low
2pm 1
Low
3pm 0.7
Low
4pm 0.3
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, February 10th in Johnsville, CA is below.

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