Dermidia

Indoor drying stress · updated daily

Indoor drying stress near you, and the skin care that matches it

Heated winter air pulls water from your skin. See today's Dry Skin Index for your area, then choose lotions, creams and humidifiers matched to that level.

Check today's forecast of indoor drying stresses across the USA

Loading the national forecast…
  • Low Risk
  • First Alert
  • Special Care
  • Enhanced Care
Map colors: Color-vision-option

About this map

Modeled indoor drying stress from NOAA GFS weather. A smooth regional overview; local conditions can differ. This map is a forecast snapshot, not a seven-day local outlook.

Gray areas have insufficient nearby coverage and do not indicate low drying stress.

Gauge colors match the DSI gauge. Color-vision-option uses the alternate palette; the forecast values and care levels are identical. The alternate colors are not a guarantee of accessibility for every viewer.

The map refreshes daily. City forecasts use a separate source and forecast period.

For a location near you

Loading the drying stress near you…

Your care level, step by step

Each step keeps the ones before it, and the Dry Skin Index tells you when to take the next one. Many homes climb from fall into winter and step back down in spring.

DSI 4 is where dry skin can start to form indoors. Make moisturizing a daily step, soon after bathing while skin is still slightly damp. Look for water-binding ingredients such as glycerin or urea, and choose a texture you will actually use: a lotion spreads easily over arms, legs and torso.

The Dry Skin Index tells you when to step up your routine. Choose the product by where your skin is dry, how it feels, and a texture you will keep using. How to choose a moisturizer →

Keep from lower levels: moisturizing wash.

We may earn a commission when you buy through these links. Skin-care picks are chosen by ingredients first; humidifiers by type and upkeep. How we choose

See the First Alert routine →

Product + habit

Lotion works best if you keep using it. Guide tells you when.

The right product is half of good skin care. The other half is using it steadily through the dry months. Free Guide Lite sends a short weekly email with your area's Dry Skin Index and the care step that matches it, so your routine keeps pace with the air in your home.

Start Guide Lite

Free. No password or credit card.

Enhanced Care · DSI 6 and up

Humidifiers for the driest weeks

Lotions help your skin cope with dry air. A humidifier changes the air. Aim for about 40 to 50% humidity where you sleep.

Compare humidifiers →
Room humidifier types compared
TypeBest forWhy it mattersUpkeep
EvaporativeBedrooms and homes with hard waterA fan blows air through a wet wick. Output slows as the room gets more humid, so it is hard to over-humidify, and there is no white mineral dust.Replace or rinse the wick as the maker directs.
Ultrasonic cool mistQuiet rooms and small spacesVery quiet. Minerals in tap water can settle as white dust, so use distilled water. Pair it with a humidistat or hygrometer so it does not overshoot.Empty, rinse and dry the tank daily; clean weekly.
Warm mistAdults-only roomsBoils water before releasing it, so the mist is warm. Uses more electricity, and the hot water is a burn risk around children and pets.Descale regularly.

Why dry skin starts with indoor air

You may notice tight, rough skin days later, but the setup starts earlier: outdoor air gets drier, heating lowers indoor humidity, and skin loses water more readily. The Dry Skin Index turns that physics into a care signal.

  1. Cold cloud, snowflake, and dry wind icon.

    1. Outdoor air

    Cold or dry weather

  2. Water droplet with downward arrow and fading humidity dots.

    2. Your home

    Heating lowers humidity

  3. Skin surface with water vapor being pulled outward.

    3. Your skin

    Stronger drying gradient

  4. DSI gauge with colored arc and needle.

    4. Dry Skin Index

    A 0–10 care signal

Free Dermidia Guide Lite

Keep up with your care level each week

  • Today's DSI and a seven-day outlook for your saved ZIP code
  • An optional weekly email with your area's Dry Skin Index
  • One care tip for the week ahead
Start Guide Lite

Free. No password or credit card. Your email is not shared with third parties.

Dermidia offers care recommendations, not medical advice. If you have eczema, diabetes, poor circulation, immune suppression, open cracks, bleeding, signs of infection, or persistent itching, follow your clinician's plan and seek medical advice.

Picks last reviewed November 2026.