UV Index for Johnson City, TN

Current Johnson City UV Index

0 (Low)

Last Updated 14 minutes ago

Hourly Johnson City UV Index

The hourly Johnson City, TN UV Index forecast for Thursday, August 28th, 2025.

5 Day Hourly Johnson City UV Index Forecast

Last Updated 12 hours ago

The UV index forecast for the next five days in Johnson City, TN has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Johnson City over the next five days will be 8.7 on Friday, August 29th at 1:00 pm.

The UV index forecast for Thursday, August 28th in Johnson City, TN is below.

Time UV Index Risk
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.3
Low
9am 1.2
Low
10am 2.7
Low
11am 5
Moderate
12pm 6.2
High
1pm 8
Very High
2pm 7.9
High
3pm 6.2
High
4pm 2.6
Low
5pm 1.4
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 Friday, August 29th in Johnson City, TN 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 1.2
Low
10am 3
Moderate
11am 5.3
Moderate
12pm 7.4
High
1pm 8.7
Very High
2pm 8.7
Very High
3pm 7.4
High
4pm 5.3
Moderate
5pm 3
Moderate
6pm 1.2
Low
7pm 0.3
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, August 30th in Johnson City, TN 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 5
Moderate
12pm 6.2
High
1pm 8.3
Very High
2pm 8.4
Very High
3pm 5.9
Moderate
4pm 2
Low
5pm 1.5
Low
6pm 0.5
Low
7pm 0.1
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, August 31st in Johnson City, TN 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