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Last Updated 12 minutes ago
The hourly Colusa, CA UV Index forecast for Thursday, September 18th, 2025.
Last Updated 22 hours ago
The UV index forecast for the next five days in Colusa, CA has no days reaching the extreme level and 2 days reaching the high or very high levels. The peak UV intensity in Colusa over the next five days will be 6.8 on Friday, September 19th at 1:00 pm.
The UV index forecast for Thursday, September 18th in Colusa, CA is below.
Time | UV Index | Risk |
---|---|---|
10am | 2.3 |
Low |
11am | 4 |
Moderate |
12pm | 5.4 |
Moderate |
1pm | 5.8 |
Moderate |
2pm | 5.6 |
Moderate |
3pm | 4.6 |
Moderate |
4pm | 3.1 |
Moderate |
5pm | 1.4 |
Low |
6pm | 0.4 |
Low |
7pm | 0 |
Low |
8pm | 0 |
Low |
9pm | 0 |
Low |
10pm | 0 |
Low |
11pm | 0 |
Low |
The UV index forecast for Friday, September 19th in Colusa, 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 | 0.2 |
Low |
9am | 0.9 |
Low |
10am | 2.4 |
Low |
11am | 4.4 |
Moderate |
12pm | 6.1 |
High |
1pm | 6.8 |
High |
2pm | 6.5 |
High |
3pm | 5 |
Moderate |
4pm | 3.2 |
Moderate |
5pm | 1.4 |
Low |
6pm | 0.4 |
Low |
7pm | 0 |
Low |
8pm | 0 |
Low |
9pm | 0 |
Low |
10pm | 0 |
Low |
11pm | 0 |
Low |
The UV index forecast for Saturday, September 20th in Colusa, 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 | 0.2 |
Low |
9am | 1 |
Low |
10am | 2.5 |
Low |
11am | 4.3 |
Moderate |
12pm | 5.9 |
Moderate |
1pm | 6.6 |
High |
2pm | 6.2 |
High |
3pm | 4.8 |
Moderate |
4pm | 3 |
Moderate |
5pm | 1.4 |
Low |
6pm | 0.4 |
Low |
7pm | 0 |
Low |
8pm | 0 |
Low |
9pm | 0 |
Low |
10pm | 0 |
Low |
11pm | 0 |
Low |
The UV index forecast for Sunday, September 21st in Colusa, 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 |