UV Index for Fort Smith, AR

Current Fort Smith UV Index

2.1 (Low)

Last Updated 7 minutes ago

Hourly Fort Smith UV Index

The hourly Fort Smith, AR UV Index forecast for Wednesday, August 27th, 2025.

5 Day Hourly Fort Smith UV Index Forecast

Last Updated 2 hours ago

The UV index forecast for the next five days in Fort Smith, AR has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Fort Smith over the next five days will be 4.8 on Saturday, August 30th at 3:00 pm.

The UV index forecast for Wednesday, August 27th in Fort Smith, AR is below.

Time UV Index Risk
4pm 0.3
Low
5pm 0.3
Low
6pm 0.2
Low
7pm 0.1
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, August 28th in Fort Smith, AR 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 1.6
Low
10am 2.9
Low
11am 4.2
Moderate
12pm 0.9
Low
1pm 1.1
Low
2pm 1.1
Low
3pm 0.8
Low
4pm 0.5
Low
5pm 0.5
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 Friday, August 29th in Fort Smith, AR 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 0.4
Low
11am 0.6
Low
12pm 0.8
Low
1pm 1
Low
2pm 1.1
Low
3pm 0.9
Low
4pm 0.6
Low
5pm 0.2
Low
6pm 0.1
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, August 30th in Fort Smith, AR 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 0.4
Low
10am 0.8
Low
11am 1
Low
12pm 1.3
Low
1pm 2.3
Low
2pm 4.1
Moderate
3pm 4.8
Moderate
4pm 4
Moderate
5pm 2
Low
6pm 0.6
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 Fort Smith, AR 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