# What to wear running: the temperature chart runners actually use

> What to wear running by temperature, from 70°F down to below 20°F, plus the 10-20 degree rule, rain gear tips, and the wind chill modifier that changes everything.

**Source:** [https://northlabapps.com/blog/what-to-wear-running/](https://northlabapps.com/blog/what-to-wear-running/)  
**Published:** 2026-07-16  
**Topics:** running, weather  
**Author:** NorthLab Apps (https://northlabapps.com) — makers of NorthLab Folders, a privacy-first folders/search/export extension for ChatGPT and Claude

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If you're standing at the door trying to guess what to wear running, the fast rule is this: dress as if it's 10 to 20°F warmer than what the thermometer actually says. Ten minutes into any run, your body is generating serious heat, and clothes that feel right standing still will have you sweating and stripping layers by the first mile ([Runner's World](https://www.runnersworld.com/training/a20803133/what-to-wear-on-a-run/)). Below is the full temperature chart, band by band, plus the wind and rain adjustments that change the answer.

## The 10-20 degree rule

The core rule is simple: pick an outfit that would feel slightly cool for the first five minutes, because running generates enough metabolic heat to warm you up fast ([Runner's World](https://www.runnersworld.com/training/a20803133/what-to-wear-on-a-run/)). If you're comfortable standing in your driveway before you start, you've almost certainly overdressed for the run itself.

Two things shift that baseline. Wind is the first. A stiff headwind strips heat faster than the air temperature alone suggests, so dress for the "feels like" number, not the raw reading, especially on exposed routes with no tree cover or buildings to block gusts.

Rain is the second, and it's less forgiving. A waterproof shell changes the whole calculation, because wet fabric against skin pulls heat away far faster than dry fabric at the same temperature. We cover exactly where that line sits later in this post.

Dew point matters too, mostly in the other direction, on warm mornings. Once the dew point climbs past 65°F, sweat stops evaporating efficiently and every effort feels harder regardless of what you're wearing ([NWS](https://www.weather.gov/arx/dewpoint)). Our [dew point and running pace guide](https://northlabapps.com/blog/dew-point-running/) breaks down exactly how much to slow down as humidity climbs.

## What to wear running: temperature chart

The chart below is the version we've relied on for years, organized by ten-degree bands from 70°F down to below 20°F. It follows the 10-20 degree rule, so treat each row as your starting point, then adjust up or down for wind, rain, or how your own body runs hot or cold.

| Temperature | Tops | Bottoms | Extras |
|---|---|---|---|
| 70°F+ | Singlet or lightweight tech tee | Shorts | Hat and sunscreen; consider running earlier or later |
| 60-70°F | Short-sleeve tech shirt | Shorts | Light cap optional |
| 50-60°F | Short-sleeve or light long-sleeve tech shirt | Shorts or capris | Light gloves if your hands run cold |
| 40-50°F | Long-sleeve tech shirt | Tights or shorts, depending on preference | Light gloves, ear-covering headband |
| 30-40°F | Long-sleeve shirt plus a light jacket or vest | Tights | Real gloves, hat covering ears |
| 20-30°F | Thermal long-sleeve plus a wind-resistant jacket | Tights, possibly layered | Heavier gloves, hat, neck gaiter |
| Below 20°F | Layered base plus an insulated or wind-blocking jacket | Thermal tights | Heavy gloves or mittens, hat, balaclava or face cover |

### What to wear running in 50 degree weather

Fifty degrees is the single most-searched band, and it's genuinely the toggle point where runners split into shorts-people and tights-people. Your legs generate their own heat fast, so bare legs are usually fine once you're moving; hands and ears are the parts that actually get cold at this temperature.

If you run mostly easy miles, a light long-sleeve on top and shorts on the bottom covers most 50°F mornings. If you're doing anything hard or long, that band also happens to sit close to what researchers found is the sweet spot for marathon performance, roughly 39 to 50°F, with mid-pack runners peaking around 43°F ([El Helou et al., PLoS ONE 2012](https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0037407)). It's not an accident that so many marathon PRs get set on cool, calm mornings right in this window.

### What to wear running in 40 degrees

Forty degrees is where most runners commit to long sleeves and tights rather than debating it. A single long-sleeve tech shirt is usually enough on top if you're moving at a steady pace, but add a light vest if there's any wind or you tend to start slow.

Gloves stop being optional gear at this point for most people. Fingers lose heat faster than the rest of the body because they have so little muscle mass generating warmth, and a five-dollar pair of running gloves solves that problem completely.

### What to wear running in 30 degrees

At 30°F, gloves and ear coverage move from "nice to have" to non-negotiable, because exposed skin on your hands and ears is usually the first thing to go numb, not your core. Layer a long-sleeve base under a light jacket, switch to tights, and cover your ears with a hat or headband.

Runners tend to overcorrect for cold by piling on jacket layers, when the smarter fix is usually just covering the extremities better. Your torso is doing the metabolic work and stays warm on its own once you're a few minutes in; hands, ears, and any bare skin around the wrists are where the cold actually gets in.

## What to wear running in the rain

Above roughly 50°F, rain is mostly a comfort question, not a safety one, and a light breathable shell or even just a technical tee handles it fine. Below 50°F, and especially once you drop into the 40s, wet clothing pulls heat away from your body dramatically faster than dry clothing at the same temperature, which is exactly the setup that leads to hypothermia risk on longer runs.

A genuine waterproof shell, not just water-resistant, is worth having if you run through winter and spring storms regularly. A brimmed cap does more for comfort than almost any other single item in the rain, since it keeps water off your glasses and out of your eyes without you having to think about it.

Anti-chafe balm matters more in the rain than in dry weather, because wet fabric rubs differently against skin than dry fabric does. Apply it anywhere fabric seams sit, underarms, inner thighs, and the back of the neck under a jacket collar, before you head out.

The real danger zone is cold rain on a long run: temperatures in the 40s combined with rain and any wind at all. That combination can drop your core temperature steadily over an hour or two, even though 40-something degrees alone wouldn't worry most runners. If you're heading out for a long run in those conditions, a waterproof shell isn't optional, it's the thing standing between you and a genuinely dangerous situation.

## Tools that dress you automatically

You don't have to memorize a chart if you'd rather just ask a tool. dressmyrun.com is a free web tool that geolocates you, pulls the current forecast, and spits out a recommended outfit, with a run-hot or run-cold slider so it adjusts to your personal preference. It's a solid, honest tool for a quick same-day check.

What it doesn't do is forecast ahead or alert you to changing conditions, since it only reads the weather right now. At NorthLab we're building RunWindow, an iOS app that scores every hour of your day for running weather, dew point included, and gives clothing recommendations for whichever run window you pick. Until it ships, this guide is the manual.

If timing your run around the weather is as much a puzzle as dressing for it, our post on [finding your best time to run](https://northlabapps.com/blog/best-time-to-run/) walks through how to read a forecast for the whole day, not just right now. And if heat rather than cold is your actual problem, [our guide on when it's too hot to run](https://northlabapps.com/blog/too-hot-to-run/) covers the other end of the chart, including how the ACSM flag system used at road races signals when conditions get genuinely risky.

## Frequently asked questions

**What should I wear running in 50 degree weather?**

Most runners do well in a short-sleeve tech shirt or light long sleeve, shorts or capris, and light gloves if your hands run cold. Fifty degrees sits right at the edge of the shorts-versus-tights debate, legs usually warm up fast, but hands and ears often don't.

**What should I wear running in 30 degree weather?**

Layer a long-sleeve base with a light jacket or vest on top, wear tights instead of shorts, and add real gloves and a hat that covers your ears. At 30°F, exposed fingers and ears are usually the first thing to go numb, not your core.

**What is the 10-20 degree rule for running?**

Dress as if it's 10 to 20°F warmer than the actual temperature, because running quickly generates enough metabolic heat to make outdoor clothing feel warm within minutes ([Runner's World](https://www.runnersworld.com/training/a20803133/what-to-wear-on-a-run/)). If you feel comfortable standing still at the start, you're probably overdressed.

**What should I wear running in the rain?**

Above 50°F, a light, breathable shell or just a technical tee is usually enough since your body handles the wet fine. Below 50°F, especially in the 40s, a waterproof shell matters far more, because wet plus cold plus wind is the classic setup for hypothermia risk on long runs.

**Is there an app that tells you what to wear running?**

dressmyrun.com is a free web tool that geolocates you, pulls the live forecast, and recommends an outfit, with a run-hot/run-cold slider for personal preference. It doesn't do multi-day forecasting or alerts, which is the gap tools like RunWindow are built to fill.

## The bottom line

Start from the 10-20 degree rule, adjust for wind and rain, and treat the chart above as a starting point rather than gospel, since every runner's internal thermostat runs a little differently. Cover your extremities before you add more jacket, and take cold rain seriously in the 40s. Once you've got your outfit sorted, the next question is usually timing, and that's exactly what our [best time to run guide](https://northlabapps.com/blog/best-time-to-run/) is for.