0 (Low)
Last Updated 41 minutes ago
The hourly Crystal Lake, IA UV Index forecast for Tuesday, September 16th, 2025.
Last Updated 8 hours ago
The UV index forecast for the next five days in Crystal Lake, IA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Crystal Lake over the next five days will be 5.8 on Wednesday, September 17th at 1:00 pm.
The UV index forecast for Tuesday, September 16th in Crystal Lake, IA is below.
Time | UV Index | Risk |
---|---|---|
10pm | 0 |
Low |
11pm | 0 |
Low |
The UV index forecast for Wednesday, September 17th in Crystal Lake, IA 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 | 2.1 |
Low |
11am | 3.7 |
Moderate |
12pm | 5.1 |
Moderate |
1pm | 5.8 |
Moderate |
2pm | 5.6 |
Moderate |
3pm | 4.5 |
Moderate |
4pm | 3 |
Moderate |
5pm | 1.5 |
Low |
6pm | 0.5 |
Low |
7pm | 0 |
Low |
8pm | 0 |
Low |
9pm | 0 |
Low |
10pm | 0 |
Low |
11pm | 0 |
Low |
The UV index forecast for Thursday, September 18th in Crystal Lake, IA 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 | 2.1 |
Low |
11am | 3.5 |
Moderate |
12pm | 0.8 |
Low |
1pm | 3.6 |
Moderate |
2pm | 1.7 |
Low |
3pm | 1.9 |
Low |
4pm | 0.2 |
Low |
5pm | 0.2 |
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 Friday, September 19th in Crystal Lake, IA 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 | 0.1 |
Low |
9am | 0.2 |
Low |
10am | 1 |
Low |
11am | 2.2 |
Low |
12pm | 2.3 |
Low |
1pm | 4.2 |
Moderate |
2pm | 5.4 |
Moderate |
3pm | 4 |
Moderate |
4pm | 2.8 |
Low |
5pm | 1.2 |
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 Crystal Lake, IA 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 |