Hillsboro UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index7.1
- Avg Clouds1%
- Max Temp29.9 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Hillsboro, United States 
will reach a high of 7.1 today. This means a high level of sun exposure. See our tips below to stay safe!
Last checked: 2025-08-21
Hourly Forecast Chart
Today's Safety Tips
Be careful! The sun's rays are strong. Try to stay in the shade between 10 a.m. and 4 p.m. Wear a hat, sunglasses, and reapply SPF 30+ sunscreen every 2 hours.
Hillsboro's UV Index
The UV index in Hillsboro, United States, varies throughout the year, generally ranging from low to moderate levels, with higher values during summer months. Peaks can reach up to 8 or 9 in the hottest months.
Weather Seasons
Hillsboro experiences mild, wet winters and warm, dry summers. Rain is common from October to April, while July and August are the driest and sunniest. Temperatures rarely drop below freezing in winter and often reach the 80s Fahrenheit in summer.
Hillsboro's Climate
Compared to nearby Portland and the broader Pacific Northwest, Hillsboro has a similar climate with slightly more sunshine in summer. It is wetter and cooler than many parts of California to the south but milder than the inland areas east of the Cascade Mountains.
Hourly UV Index Trend
See the UV index hour by hour for Hillsboro. When the level is high, it's smart to find some shade.
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