UV Index Today

Real-time solar radiation monitoring

Altoona, Iowa, United States
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Altoona

Iowa, United States • Local time: 20:57

Live UV Index
20:00
0.1
Low
Peak 6.3 at 14:00

Temp

24.0°C
Clear

Status

Clear

Max

27.2°C

Next 3 Hours

0.0
21:00
0.0
22:00
0.0
23:00

Humidity

78%

Cloud

0%

Wind Spd

2.2km/h

"Low risk. Minimal protection needed."

Today's UV Forecast

Hourly prediction for Altoona · Peak 6.3 at 14:00

—
00
—
01
—
02
—
03
—
04
—
05
—
06
—
07
0.3
08
1.2
09
2.5
10
1.4
11
2.4
12
4.8
13
6.3
14
5.8
15
4.8
16
3.4
17
1.9
18
0.7
19
0.1
20
—
21
—
22
—
23

Sunburn time at UV 0.1

Estimate for Altoona based on your skin type. Estimates only — not medical advice.

Skin type (Fitzpatrick)

Unprotected

12+ hours

Type II · no sunscreen

Recommended

SPF 15+

UV is low, but fair skin still benefits from light protection for longer outings.

With SPF 15+

12+ hours

Theoretical window — apply enough and reapply every 2 hours

Quick take: Longer unprotected window, but cumulative UV still adds up.

Open full calculator with SPF options

Location Map

41.6400, -93.4686 · Elev. 287 m · America/Chicago

Open in Google Maps

Today's UV outlook for Altoona

Today's forecast for Altoona peaks at UV 6.3 around 14:00. The hourly outlook shows 5 hours at moderate or above (UV 3+), 1 hour at high or above (UV 6+). The live reading is UV 0.1 right now.

Peak UV reaches the high band today. Plan longer outdoor sessions earlier or later if you can, and use the calculator below to see how long unprotected skin may last at the current reading.

Compare with other cities in Iowa, or read practical planning notes in the blog .