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Last Updated 52 minutes ago
The hourly Heralds Prairie, IL UV Index forecast for Thursday, September 18th, 2025.
Last Updated 17 hours ago
The UV index forecast for the next five days in Heralds Prairie, IL has no days reaching the extreme level and 2 days reaching the high or very high levels. The peak UV intensity in Heralds Prairie over the next five days will be 6.8 on Thursday, September 18th at 1:00 pm.
The UV index forecast for Thursday, September 18th in Heralds Prairie, IL is below.
Time | UV Index | Risk |
---|---|---|
7am | 0 |
Low |
8am | 0.4 |
Low |
9am | 1.4 |
Low |
10am | 3.1 |
Moderate |
11am | 4.9 |
Moderate |
12pm | 6.3 |
High |
1pm | 6.8 |
High |
2pm | 5.9 |
Moderate |
3pm | 4.3 |
Moderate |
4pm | 2.6 |
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 Friday, September 19th in Heralds Prairie, 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 | 0.4 |
Low |
9am | 1.3 |
Low |
10am | 3 |
Moderate |
11am | 4.8 |
Moderate |
12pm | 5.6 |
Moderate |
1pm | 4.7 |
Moderate |
2pm | 3.5 |
Moderate |
3pm | 3.2 |
Moderate |
4pm | 1.5 |
Low |
5pm | 0.6 |
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 Saturday, September 20th in Heralds Prairie, 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 | 0.4 |
Low |
9am | 1.2 |
Low |
10am | 2.7 |
Low |
11am | 4.5 |
Moderate |
12pm | 5.9 |
Moderate |
1pm | 6.4 |
High |
2pm | 5.6 |
Moderate |
3pm | 4.2 |
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 Heralds Prairie, 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 |