UV Index for Johnston City, IL

Current Johnston City UV Index

0 (Low)

Last Updated 34 minutes ago

Hourly Johnston City UV Index

The hourly Johnston City, IL UV Index forecast for Saturday, July 12th, 2025.

5 Day Hourly Johnston City UV Index Forecast

Last Updated 13 hours ago

The UV index forecast for the next five days in Johnston City, IL has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Johnston City over the next five days will be 10.8 on Saturday, July 12th at 1:00 pm.

The UV index forecast for Saturday, July 12th in Johnston City, IL is below.

Time UV Index Risk
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.4
Low
8am 1.4
Low
9am 3.3
Moderate
10am 5.7
Moderate
11am 8
Very High
12pm 10.2
Very High
1pm 10.8
Very High
2pm 10
Very High
3pm 8
Very High
4pm 5.4
Moderate
5pm 3.1
Moderate
6pm 1
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, July 13th in Johnston City, 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 0.4
Low
8am 1.5
Low
9am 3.4
Moderate
10am 5.8
Moderate
11am 8.4
Very High
12pm 10.2
Very High
1pm 10.7
Very High
2pm 9.1
Very High
3pm 7
High
4pm 3.7
Moderate
5pm 0.5
Low
6pm 0.3
Low
7pm 0.1
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, July 14th in Johnston City, 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 0.4
Low
8am 1.4
Low
9am 3.2
Moderate
10am 5.6
Moderate
11am 8
Very High
12pm 9.8
Very High
1pm 10.4
Very High
2pm 9
Very High
3pm 6.9
High
4pm 4.7
Moderate
5pm 2.2
Low
6pm 1
Low
7pm 0.3
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, July 15th in Johnston City, 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 0.4
Low