UV Index Today in Mesa, Arizona (AZ)

Wednesday, July 15, 2026 -9:14 AM MST (GMT-7)

The UV Index in Mesa, Arizona (AZ) right now is 4.5. This reading was last updated at 9:00 AM MST, about 14 minutes ago. The UV Index at10:00 AM MST, in about 45 minutes from now, is expected to be 7.3.

The maximum UV Index today in Mesa is expected to be 11.2 at 12:00 PM MST,2 hours and 45 minutes from now. The maximum UV Index tomorrow is expected to be 10.9 at 12:00 PM MST.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

July 15
11.2
12:00 PM MST
Extreme

Tomorrow

July 16
10.9
12:00 PM MST
Extreme

UV Index Today Hourly

July 15

UV levels in Mesa, Arizona (AZ) are projected to top out at 11.2 today, hitting Extreme risk near 12:00 PM MST.

0246810125 AM6 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMMountain Standard Time (MST, GMT-7)Now: 9:14 AM00.10.82.24.57.39.811.211.29.77.14.31.40.30
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

July 16

Tomorrow in Mesa, Arizona (AZ), the UV Index is expected to reach up to 10.9 around12:00 PM MST, placing it in the Extreme risk category for sun exposure.

02468105 AM6 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMMountain Standard Time (MST, GMT-7)00.10.30.51.97.19.210.99.741.43.320.30
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

July 14, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0.1
Low
7:00 AM0.8
Low
8:00 AM2.3
Low
9:00 AM4.6
Moderate
10:00 AM7.4
High
11:00 AM10
Very High
12:00 PM11.5
Extreme
1:00 PM11.4
Extreme
2:00 PM9.9
Very High
3:00 PM7.2
High
4:00 PM4.4
Moderate
5:00 PM2.1
Low
6:00 PM0.7
Low
7:00 PM0.1
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

July 15, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0.1
Low
7:00 AM0.8
Low
8:00 AM2.2
Low
9:00 AM4.5
Moderate
10:00 AM7.3
High
11:00 AM9.8
Very High
12:00 PM11.2
Extreme
1:00 PM11.2
Extreme
2:00 PM9.7
Very High
3:00 PM7.1
High
4:00 PM4.3
Moderate
5:00 PM1.4
Low
6:00 PM0.3
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

July 16, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0.1
Low
7:00 AM0.3
Low
8:00 AM0.5
Low
9:00 AM1.9
Low
10:00 AM7.1
High
11:00 AM9.2
Very High
12:00 PM10.9
Extreme
1:00 PM9.7
Very High
2:00 PM4
Moderate
3:00 PM1.4
Low
4:00 PM3.3
Moderate
5:00 PM2
Low
6:00 PM0.3
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

July 17, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0.1
Low
7:00 AM0.7
Low
8:00 AM2.1
Low
9:00 AM4.5
Moderate
10:00 AM7.3
High
11:00 AM9.8
Very High
12:00 PM11.3
Extreme
1:00 PM11.2
Extreme
2:00 PM9.6
Very High
3:00 PM7.1
High
4:00 PM3.4
Moderate
5:00 PM1.8
Low
6:00 PM0.7
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

July 18, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0.1
Low
7:00 AM0.4
Low
8:00 AM1.1
Low
9:00 AM3.1
Moderate
10:00 AM7.5
Very High
11:00 AM9.9
Very High
12:00 PM11.4
Extreme
1:00 PM11.3
Extreme
2:00 PM9.7
Very High
3:00 PM7.2
High
4:00 PM4.3
Moderate
5:00 PM2
Low
6:00 PM0.7
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low
Data Source: National Oceanic and Atmospheric Administration (NOAA)

Nearby Places

Maximum UV Index Today
  • Gilbert - 11.3
  • Chandler - 11.3
  • Phoenix - 11.2
Data Source: National Oceanic and Atmospheric Administration (NOAA)