Mount Prospect, Illinois

Low

2.3

UV Index · Now

Step out.

You can step out without sun protection.

Unprotected

1 hr 27 min

until skin starts to burn.

With SPF 30

43 hr 29 min

Average unprotected skin. Lighter skin burns faster, darker skin slower.

HeatComfortable

Air

17°

Feels like

17°

Humidity

51%

Questions about Mount Prospect today

What is the UV index in Mount Prospect right now?
The UV index in Mount Prospect, Illinois is 2.3 — categorised as Low. You can step out without sun protection.
Is it safe to go outside in Mount Prospect today?
Yes — UV is low (2.3) in Mount Prospect right now. You can step out without sun protection.
How long does it take to get sunburn in Mount Prospect?
Average unprotected skin starts to burn in roughly 1 hr 27 min at the current UV index of 2.3 in Mount Prospect. SPF 30 multiplies that window by about 30×. Lighter skin burns faster; darker skin burns more slowly.
What does the heat feel like in Mount Prospect today?
Air temperature is 17°C with 51% humidity, giving a "feels like" reading of 17°C — comfortable.
When is the safest time to step outside in Mount Prospect?
UV is highest between 11 am and 4 pm. Early mornings (before 9 am) and late afternoons (after 5 pm) are the safest windows for unprotected skin in Mount Prospect, especially through summer.
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Data: Open-Meteo · Cities: GeoNames (CC-BY 4.0) · Updated Tue 12:30 PM · Refreshes every 30 minutes