UV Index for Waltham, MA

Current Waltham UV Index

0 (Low)

Last Updated 6 minutes ago

Hourly Waltham UV Index

The hourly Waltham, MA UV Index forecast for Tuesday, April 1st, 2025.

5 Day Hourly Waltham UV Index Forecast

Last Updated 16 hours ago

The UV index forecast for the next five days in Waltham, MA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Waltham over the next five days will be 5.1 on Tuesday, April 1st at 1:00 pm.

The UV index forecast for Tuesday, April 1st in Waltham, MA is below.

Time UV Index Risk
7am 0
Low
8am 0.3
Low
9am 1.2
Low
10am 2.6
Low
11am 4
Moderate
12pm 4.9
Moderate
1pm 5.1
Moderate
2pm 4.5
Moderate
3pm 3.4
Moderate
4pm 2
Low
5pm 0.9
Low
6pm 0.3
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, April 2nd in Waltham, MA 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 0.5
Low
9am 1.4
Low
10am 2.8
Low
11am 4.3
Moderate
12pm 4.9
Moderate
1pm 5
Moderate
2pm 4.5
Moderate
3pm 3.3
Moderate
4pm 1.6
Low
5pm 0.8
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, April 3rd in Waltham, MA 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 0.8
Low
12pm 1.3
Low
1pm 2
Low
2pm 1.4
Low
3pm 1.7
Low
4pm 1.1
Low
5pm 0.7
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 Friday, April 4th in Waltham, MA 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 0.4
Low