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Last Updated 35 minutes ago
The hourly Alto, IL UV Index forecast for Friday, September 19th, 2025.
Last Updated 16 hours ago
The UV index forecast for the next five days in Alto, IL has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Alto over the next five days will be 5.6 on Saturday, September 20th at 1:00 pm.
The UV index forecast for Friday, September 19th in Alto, IL is below.
Time | UV Index | Risk |
---|---|---|
6am | 0 |
Low |
7am | 0 |
Low |
8am | 0.4 |
Low |
9am | 1 |
Low |
10am | 2.3 |
Low |
11am | 2 |
Low |
12pm | 4.3 |
Moderate |
1pm | 4.4 |
Moderate |
2pm | 4 |
Moderate |
3pm | 2.3 |
Low |
4pm | 1.6 |
Low |
5pm | 0.6 |
Low |
6pm | 0.2 |
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 Alto, IL 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 | 0.3 |
Low |
9am | 1.2 |
Low |
10am | 2.5 |
Low |
11am | 3.4 |
Moderate |
12pm | 5.4 |
Moderate |
1pm | 5.6 |
Moderate |
2pm | 5 |
Moderate |
3pm | 4 |
Moderate |
4pm | 2.5 |
Low |
5pm | 1.1 |
Low |
6pm | 0.3 |
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 Alto, IL 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 | 0.7 |
Low |
10am | 1.2 |
Low |
11am | 2.6 |
Low |
12pm | 4.5 |
Moderate |
1pm | 4.6 |
Moderate |
2pm | 3.6 |
Moderate |
3pm | 1.9 |
Low |
4pm | 1.4 |
Low |
5pm | 0.8 |
Low |
6pm | 0.2 |
Low |
7pm | 0 |
Low |
8pm | 0 |
Low |
9pm | 0 |
Low |
10pm | 0 |
Low |
11pm | 0 |
Low |
The UV index forecast for Monday, September 22nd in Alto, IL 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 |