UV Index for Great Falls, VA

Current Great Falls UV Index

0 (Low)

Last Updated 43 minutes ago

Hourly Great Falls UV Index

The hourly Great Falls, VA UV Index forecast for Monday, June 16th, 2025.

5 Day Hourly Great Falls UV Index Forecast

Last Updated 14 hours ago

The UV index forecast for the next five days in Great Falls, VA has no days reaching the extreme level and 1 day reaching the high or very high levels. The peak UV intensity in Great Falls over the next five days will be 10.1 on Wednesday, June 18th at 2:00 pm.

The UV index forecast for Monday, June 16th in Great Falls, VA is below.

Time UV Index Risk
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.2
Low
9am 0.3
Low
10am 0.6
Low
11am 0.9
Low
12pm 1
Low
1pm 1.3
Low
2pm 1.8
Low
3pm 1.4
Low
4pm 0.8
Low
5pm 0.7
Low
6pm 0.4
Low
7pm 0.1
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, June 17th in Great Falls, VA 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 0.1
Low
8am 0.2
Low
9am 0.3
Low
10am 0.2
Low
11am 0.8
Low
12pm 2.2
Low
1pm 3.3
Moderate
2pm 5.4
Moderate
3pm 5.5
Moderate
4pm 3.9
Moderate
5pm 1.3
Low
6pm 1.4
Low
7pm 0.1
Low
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, June 18th in Great Falls, VA 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 0.3
Low
8am 1.2
Low
9am 2.2
Low
10am 2.1
Low
11am 5.4
Moderate
12pm 9.6
Very High
1pm 9
Very High
2pm 10.1
Very High
3pm 8.1
Very High
4pm 3.8
Moderate
5pm 3.6
Moderate
6pm 1.7
Low
7pm 0.6
Low
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, June 19th in Great Falls, VA 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 1.3
Low