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Last Updated 19 minutes ago
The hourly Jefferson, SD UV Index forecast for Wednesday, September 3rd, 2025.
Last Updated 12 hours ago
The UV index forecast for the next five days in Jefferson, SD has no days reaching the extreme level and 2 days reaching the high or very high levels. The peak UV intensity in Jefferson over the next five days will be 6.6 on Thursday, September 4th at 1:00 pm.
The UV index forecast for Wednesday, September 3rd in Jefferson, SD is below.
Time | UV Index | Risk |
---|---|---|
2am | 0 |
Low |
3am | 0 |
Low |
4am | 0 |
Low |
5am | 0 |
Low |
6am | 0 |
Low |
7am | 0 |
Low |
8am | 0 |
Low |
9am | 0.4 |
Low |
10am | 0.6 |
Low |
11am | 1 |
Low |
12pm | 1.6 |
Low |
1pm | 1.4 |
Low |
2pm | 0.6 |
Low |
3pm | 0.8 |
Low |
4pm | 1.1 |
Low |
5pm | 1.3 |
Low |
6pm | 0.6 |
Low |
7pm | 0.2 |
Low |
8pm | 0 |
Low |
9pm | 0 |
Low |
10pm | 0 |
Low |
11pm | 0 |
Low |
The UV index forecast for Thursday, September 4th in Jefferson, SD 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 | 0.8 |
Low |
10am | 2.2 |
Low |
11am | 4 |
Moderate |
12pm | 5.6 |
Moderate |
1pm | 6.6 |
High |
2pm | 6.4 |
High |
3pm | 5.4 |
Moderate |
4pm | 3.8 |
Moderate |
5pm | 2 |
Low |
6pm | 0.8 |
Low |
7pm | 0.2 |
Low |
8pm | 0 |
Low |
9pm | 0 |
Low |
10pm | 0 |
Low |
11pm | 0 |
Low |
The UV index forecast for Friday, September 5th in Jefferson, SD 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 | 0.7 |
Low |
10am | 2.2 |
Low |
11am | 3.8 |
Moderate |
12pm | 5.4 |
Moderate |
1pm | 6.4 |
High |
2pm | 6.1 |
High |
3pm | 5.2 |
Moderate |
4pm | 3.7 |
Moderate |
5pm | 2 |
Low |
6pm | 0.8 |
Low |
7pm | 0.2 |
Low |
8pm | 0 |
Low |
9pm | 0 |
Low |
10pm | 0 |
Low |
11pm | 0 |
Low |
The UV index forecast for Saturday, September 6th in Jefferson, SD 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 |