UV Index for Greenhorn, CA

Current Greenhorn UV Index

3 (Moderate)

Last Updated 5 minutes ago

Hourly Greenhorn UV Index

The hourly Greenhorn, CA UV Index forecast for Wednesday, July 9th, 2025.

5 Day Hourly Greenhorn UV Index Forecast

Last Updated 22 hours ago

The UV index forecast for the next five days in Greenhorn, CA has 2 days reaching the extreme level and 1 day reaching the high or very high levels. The peak UV intensity in Greenhorn over the next five days will be 11.4 on Friday, July 11th at 1:00 pm.

The UV index forecast for Wednesday, July 9th in Greenhorn, CA is below.

Time UV Index Risk
10am 5.2
Moderate
11am 7.7
High
12pm 9.7
Very High
1pm 10.5
Very High
2pm 10
Very High
3pm 8.4
Very High
4pm 5.9
Moderate
5pm 3.4
Moderate
6pm 1.6
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, July 10th in Greenhorn, 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 1.4
Low
9am 3.2
Moderate
10am 5.7
Moderate
11am 8.3
Very High
12pm 10.3
Very High
1pm 11.2
Extreme
2pm 10.6
Very High
3pm 8.7
Very High
4pm 6.2
High
5pm 3.6
Moderate
6pm 1.6
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, July 11th in Greenhorn, 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 1.4
Low
9am 3.3
Moderate
10am 5.9
Moderate
11am 8.5
Very High
12pm 10.6
Very High
1pm 11.4
Extreme
2pm 10.8
Very High
3pm 8.9
Very High
4pm 6.3
High
5pm 3.7
Moderate
6pm 1.7
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, July 12th in Greenhorn, 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