UV Index for Crystal Lake, CT

Current Crystal Lake UV Index

0 (Low)

Last Updated 54 minutes ago

Hourly Crystal Lake UV Index

The hourly Crystal Lake, CT UV Index forecast for Sunday, September 14th, 2025.

5 Day Hourly Crystal Lake UV Index Forecast

Last Updated 8 hours ago

The UV index forecast for the next five days in Crystal Lake, CT has no days reaching the extreme level and 2 days reaching the high or very high levels. The peak UV intensity in Crystal Lake over the next five days will be 6.1 on Tuesday, September 16th at 1:00 pm.

The UV index forecast for Sunday, September 14th in Crystal Lake, CT is below.

Time UV Index Risk
11pm 0
Low

The UV index forecast for Monday, September 15th in Crystal Lake, CT 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 0.5
Low
9am 1.4
Low
10am 2.9
Low
11am 4.5
Moderate
12pm 5.7
Moderate
1pm 6
High
2pm 5.2
Moderate
3pm 2.8
Low
4pm 0.9
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 Tuesday, September 16th in Crystal Lake, CT 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 1.4
Low
10am 2.9
Low
11am 4.4
Moderate
12pm 5.7
Moderate
1pm 6.1
High
2pm 5.5
Moderate
3pm 4
Moderate
4pm 2.4
Low
5pm 0.9
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 Wednesday, September 17th in Crystal Lake, CT 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 1.1
Low
10am 2.7
Low
11am 4.5
Moderate
12pm 5.7
Moderate
1pm 5.6
Moderate
2pm 5.1
Moderate
3pm 3.8
Moderate
4pm 2.3
Low
5pm 1
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 Thursday, September 18th in Crystal Lake, CT 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