UV index in Lake Forest Park today
Lake Forest Park sits on the water in Massachusetts at 42.3°S. Lake glare works like a beach: UV from above and off the surface, with summer middays typically 8–10 (very high). This is cool-temperate America: summer UV still climbs into the very high band, and spring arrives before the weather feels hot.
Live reading · data by Open-Meteo · reference monitoring by ARPANSA
Today and tomorrow in Lake Forest Park
Peak UV, temperature and conditions for Lake Forest Park. Tomorrow’s peak is the number to plan around if you’re heading out in the middle of the day.
Weather conditions right now
Cloud and rain cut heat more than they cut UV. A partly cloudy lakeside day in Lake Forest Park can still sit at protection levels. Why you burn on cloudy days.
When Lake Forest Park needs sun protection
Sun protection is needed in Lake Forest Park typically from May through September, and any clear spring or fall day UV reaches 3. Lake glare adds a second dose on top of the sky reading, the same way a beach does.
The threshold, per SunSmart and ARPANSA: whenever UV reaches 3 or above, Slip on covering clothing, Slop on SPF 50+ sunscreen, Slap on a hat, Seek shade and Slide on sunglasses. Read the full sun safety guide.
The UV scale at a glance
- 0–2Low
- 3–5Moderate
- 6–7High
- 8–10Very high
- 11+Extreme
Frequently asked questions
- When does Lake Forest Park need sun protection?
- Whenever the UV index is 3 or above. In Lake Forest Park that is typically from May through September, and any clear spring or fall day UV reaches 3. The EPA Sun Safety action steps apply at the same threshold used worldwide.
- Does Lake Forest Park need sun protection in winter?
- Not every day. Midwinter middays in Lake Forest Park often sit below UV 3, but clear late-winter and early-spring days cross the threshold before summer fully arrives. Check the live index.
- Does the water make UV worse in Lake Forest Park?
- It can. The lake surface reflect ultraviolet, so skin that is not covered (including under the chin and on the tops of feet) picks up extra dose on top of the direct sun. The live UV index on this page is the sky reading; reflection is on top of that.