What to wear by temperature
At 45 °F and below, wear warm pieces under a warm coat. From 46 to 58 °F, mid-weight pieces with a jacket or coat. From 59 to 68 °F, mid-weight pieces and usually no coat. From 69 to 79 °F, one light piece and one mid-weight one. From 80 °F, light pieces only.
Last updated: November 3, 2026
The short answer: dress for the day’s average, check its coolest hour, and add a coat under 59 °F (15 °C) or whenever it rains. The chart below is the one StyleTwin’s weather ideas use.
The chart
| Temperature | What to wear | Coat |
|---|---|---|
| 80 °F and up (27 °C and up) | Light pieces only: tees, linen, shorts, light dresses | Only for rain |
| 69–79 °F (21–26 °C) | One light piece and one mid-weight piece, or a light dress | Only for rain |
| 59–68 °F (15–20 °C) | Mid-weight pieces: jeans, knits, sweatshirts, long sleeves | For rain or a cold start |
| 46–58 °F (8–14 °C) | Mid-weight pieces with a jacket, blazer or coat | Yes |
| 45 °F and below (7 °C and below) | Warm pieces, or mid-weight ones under a warm coat | Yes, a warm one |
Light, mid-weight and warm are the three warmths StyleTwin gives every piece. A tee, a linen shirt or a slip dress is light. Jeans, a sweatshirt or a cotton knit is mid-weight. A chunky wool sweater, a fleece or a down coat is warm.
Pick your temperature
- What to wear in 30 degree weather: freezing. A warm coat over knits, boots or closed shoes, a hat and gloves.
- What to wear in 40 degree weather: cold. Mid-weight layers under a warm coat, and boots if it rains.
- What to wear in 50 degree weather: cool. A trench, blazer or jacket over mid-weight pieces.
- What to wear in 60 degree weather: mild. Jeans with a sweatshirt or a knit, usually no coat.
- What to wear in 70 degree weather: warm. A tee with jeans or trousers, or a light dress.
What the forecast number leaves out
- The coolest hour. A 50 °F day can start at 43 °F. If you leave early or come home late, dress for the low, not the average.
- Rain and snow. A wet day feels colder than a dry one at the same temperature. Skip outfits made only of light pieces and take a coat.
- Wind. A 15 mph wind makes 30 °F feel like about 19 °F, by the US National Weather Service’s wind chill chart.
- You. If you’re always the cold one, dress for a band colder than the forecast.
How StyleTwin uses the chart
StyleTwin reads the forecast from Apple Weather and suggests outfits made only from clothes you own. The rules run on your phone:
- Every piece has a warmth: Light, Mid or Warm. StyleTwin guesses it when you add a piece, and you can change it at any time.
- A look is as warm as its pieces. The top and the bottom, or the dress, are averaged. A coat adds half its own warmth on top, so a warm coat makes a look one step warmer.
- Each band has a target, and a look may sit half a step either side of it. A look with a coat may run half a step warmer still.
- The day is its waking hours. The temperature is the average from 8 AM to 10 PM, and each look’s card shows the day’s range, like “Fits 43–55°”.
- A coat or jacket joins under 15 °C (59 °F) or in rain, if it suits the occasion and the colours.
- Rain counts at any temperature. Snow, sleet and a 50% chance of rain count too. Looks made only of light pieces drop out.
- The coolest hour. When the low is 3 °C (about 5 °F) or more under the average, a look must also hold up at the low, or the coat goes on.
- I run cold, I run warm. Tell StyleTwin and every band moves by up to 3 °C (about 5 °F).
The ideas are instant, use no AI credits, and prefer pieces you haven’t worn for a few days. Temperatures show in °F or °C, following your iPhone’s region. The pictures on this page are StyleTwin’s sample closet on five different days: every look and every line on them is the app’s own. More in Outfits for the weather.
Questions
At what temperature do you need a coat?
Under 59 °F (15 °C), and on any rainy day. That is when StyleTwin adds a coat to a look. Between 59 and 68 °F a coat is only worth it for a cold morning or a late evening, and above that only for rain.
What should you wear at 60 degrees?
Mid-weight pieces: jeans or trousers with a sweatshirt, a light knit or a long-sleeve top. Bring a light layer if the morning starts in the low 50s. See What to wear in 60 degree weather.
Is 50 degrees cold?
It’s cool rather than cold. Wear long sleeves and a jacket, a blazer or a light coat, with closed shoes. The morning and a rainy day will feel colder. See What to wear in 50 degree weather.
Which app tells you what to wear for the temperature?
StyleTwin does, free on iPhone and iPad. It reads the forecast from Apple Weather and suggests outfits made only from clothes you added to your closet, with a coat on cold or rainy days.
More about StyleTwin
StyleTwin is free on iPhone, iPad and Android.