UV Index Today in Modesto, California (CA)

Sunday, September 20, 2026 -9:22 AM PDT (GMT-7)

The UV Index in Modesto, California (CA) right now is 1. This reading was last updated at 9:00 AM PDT, about 22 minutes ago. The UV Index at10:00 AM PDT, in about 37 minutes from now, is expected to be 2.4.

The maximum UV Index today in Modesto is expected to be 5.7 at 1:00 PM PDT,3 hours and 37 minutes from now. The maximum UV Index tomorrow is expected to be 6.2 at 1:00 PM PDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

September 20
5.7
1:00 PM PDT
High

Tomorrow

September 21
6.2
1:00 PM PDT
High

UV Index Today Hourly

September 20

UV Index today for Modesto, California (CA) reaches 5.7 at 1:00 PM PDT, representingHigh risk.

02468107 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMPacific Daylight Time (PDT, GMT-7)Now: 9:22 AM00.312.44.15.25.74.63.62.51.30.30
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

September 21

Data shows Modesto, California (CA)'s UV Index climbing to 6.2 tomorrow, peaking at1:00 PM PDT under High conditions.

02468107 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMPacific Daylight Time (PDT, GMT-7)00.31.12.64.35.66.264.52.81.20.30
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

September 19, 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
Low
7:00 AM0
Low
8:00 AM0.3
Low
9:00 AM1.2
Low
10:00 AM2.8
Moderate
11:00 AM4.7
Moderate
12:00 PM6.3
High
1:00 PM7
High
2:00 PM6.5
High
3:00 PM5
Moderate
4:00 PM3.1
Moderate
5:00 PM1.4
Low
6:00 PM0.4
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

September 20, 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
Low
7:00 AM0
Low
8:00 AM0.3
Low
9:00 AM1
Low
10:00 AM2.4
Low
11:00 AM4.1
Moderate
12:00 PM5.2
Moderate
1:00 PM5.7
High
2:00 PM4.6
Moderate
3:00 PM3.6
Moderate
4:00 PM2.5
Moderate
5:00 PM1.3
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

September 21, 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
Low
7:00 AM0
Low
8:00 AM0.3
Low
9:00 AM1.1
Low
10:00 AM2.6
Moderate
11:00 AM4.3
Moderate
12:00 PM5.6
High
1:00 PM6.2
High
2:00 PM6
High
3:00 PM4.5
Moderate
4:00 PM2.8
Moderate
5:00 PM1.2
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

September 22, 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
Low
7:00 AM0
Low
8:00 AM0.3
Low
9:00 AM1.1
Low
10:00 AM2.6
Moderate
11:00 AM4.4
Moderate
12:00 PM5.9
High
1:00 PM6.5
High
2:00 PM6
High
3:00 PM4.6
Moderate
4:00 PM2.9
Moderate
5:00 PM1.3
Low
6:00 PM0.4
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

September 23, 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
Low
7:00 AM0
Low
8:00 AM0.3
Low
9:00 AM1
Low
10:00 AM2.3
Low
11:00 AM4
Moderate
12:00 PM5
Moderate
1:00 PM5.8
High
2:00 PM5.4
Moderate
3:00 PM4.1
Moderate
4:00 PM2.8
Moderate
5:00 PM1.2
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
Data Source: National Oceanic and Atmospheric Administration (NOAA)

Nearby Places

Maximum UV Index Today
Data Source: National Oceanic and Atmospheric Administration (NOAA)