Know when to run: Run Score from dew point, heat index, wet bulb, wind chill.
RunWeather: Running Weather — description
Stop guessing when to run. RunWeather is the running weather app that turns the forecast into a clear Run Score (0–100) and tells you the best time to run today.
Most weather apps just show numbers. RunWeather translates running weather into one score, built on peer-reviewed sports science — temperature, dew point, humidity, wind, precipitation and UV. No AI guessing. Real science, honest scoring.
WHY DEW POINT MATTERS Dew point — not humidity — is what makes a run feel harder. RunWeather shows it on every forecast and explains what it means for your effort and pace.
KNOW HOW IT WILL FEEL Heat index, wet bulb (WBGT) and wind chill in one place, so you can see how the air will really feel and decide what to wear before you head out.
PLAN YOUR RUN • Run Score with a Good / Mixed / Poor rating • The best running window for today • Heat stress level and pace adjustment • Hour-by-hour score chart • 7-day forecast with daily Run Scores to spot your best long run day
UNDERSTAND YOUR RUN • Was it you, or was it the weather? See how heat, dew point and wind changed your effort • Set your run duration and get a tailored forecast plus an effort score
CONNECT STRAVA (OPTIONAL) Connect with Strava to import your runs and see the weather context behind every activity — built for marathon, half marathon, 5K, 10K and trail training.
RUNWEATHER PRO • Up to 5 saved locations • Seasonal run insights and weather-adjusted pace • Full weather history and patterns
Free to start. Works in metric and imperial. Home screen widgets included.
Whether you run at dawn to beat the heat, train through humidity, or just want to know when to run today, RunWeather helps you run smarter in any conditions.
Latest version
Version
1.0.10
Update
Jul 27, 2026
Package ID
com.iustinn.mobile
What's new
Jul 27, 2026
• Run Score now reads your route's wind profile, so a headwind-heavy loop scores differently from a sheltered one. • Strava descriptions: more variety, an optional stats mode, and Pro control over the line. • Plan: commitments celebrate in place, and toasts now dismiss with a swipe in any direction. • Faster dashboard and hourly timeline. • Purchase and restore reliability fixes.