UV Index for Grand Coulee, WA

Current Grand Coulee UV Index

1.4 (Low)

Last Updated 10 minutes ago

Hourly Grand Coulee UV Index

The hourly Grand Coulee, WA UV Index forecast for Thursday, February 5th, 2026.

5 Day Hourly Grand Coulee UV Index Forecast

Last Updated 1 hour ago

The UV index forecast for the next five days in Grand Coulee, WA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Grand Coulee over the next five days will be 1.7 on Friday, February 6th at 12:00 pm.

The UV index forecast for Thursday, February 5th in Grand Coulee, WA is below.

Time UV Index Risk
12pm 1.6
Low
1pm 1.3
Low
2pm 0.9
Low
3pm 0.5
Low
4pm 0.2
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, February 6th in Grand Coulee, WA 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 0.2
Low
9am 0.6
Low
10am 1.1
Low
11am 1.5
Low
12pm 1.7
Low
1pm 1.5
Low
2pm 1
Low
3pm 0.5
Low
4pm 0.2
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, February 7th in Grand Coulee, WA 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 0.2
Low
9am 0.5
Low
10am 0.8
Low
11am 1.2
Low
12pm 1.4
Low
1pm 1.3
Low
2pm 0.8
Low
3pm 0.2
Low
4pm 0.1
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, February 8th in Grand Coulee, WA 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 0.3
Low
10am 0.6
Low
11am 1.1
Low
12pm 1.4
Low
1pm 1.2
Low
2pm 0.8
Low
3pm 0.4
Low
4pm 0.1
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, February 9th in Grand Coulee, WA is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low