Compare the apps
All 15 comparedThe full comparisonBest running weather apps 2026: 15 comparedMeteoPaceRacecastWyndoTrueEffortEpic Ride WeatherGarmin race widgetComparedBest free running weather apps 2026: no login, no subscriptionMap your runRoute ForecastGPX ForecastFindMyMarathonRacecastDress My RunComparedEpic Ride Weather for running: does it work, and what to use insteadEpic Ride WeatherGPX ForecastRoute ForecastTrueEffortMap your runComparedGarmin race day weather: what the widget shows, and what it missesGarmin race widgetFindMyMarathon race weatherMeteoPaceMap your runComparedHeat-adjusted pace calculators compared: Hadley, Davis, RunnaHadley's chartRunning Writings (John Davis)RunnersConnectMcMillan heat adjustmentWyndoRunDidaAlternativesMeteoPace alternatives: race weather plans without the paywallMeteoPaceRacecastWyndoTrueEffortGPX ForecastMap your runAlternativesRacecast alternatives: free ways to plan your race-day weatherRacecastMeteoPaceWyndoFindMyMarathonTrueEffortMap your runComparedRunna Adapt for Heat: how it works, and the alternativesRunna Adapt for HeatRunning Writings heat calculatorRunWeatherMeteoPaceMap your runAlternativesWyndo alternatives: running weather for any route and any raceWyndoRunWeatherRacecastMeteoPaceRoute ForecastMap your run
Weather for your run
Start with the guideWeather for your runFeels like temperature for runners: why your app's number is lowUnderstand what the feels like number means on a run, and why the sun and your own pace change it.6 min readWeather for your runBest time to run in hot weather (dawn isn't always coolest)Find the coolest hour for tomorrow's run, and learn when the evening beats the dawn.6 min readWeather for your runWhen to trust a marathon forecast: 10 days, 5 days, the night beforeKnow which forecast to plan on, and when, so race-week weather news helps you instead of worrying you.6 min readWeather for your runWeather along your running route: use a GPX, FIT or TCX fileTurn the route file on your watch or phone into a forecast for every kilometre, timed to when you'll be there.6 min readWeather for your runRace day weather forecast: read it for your marathon, km by kmRead the race-day forecast for the hours you'll actually be on the course, and set your pace, kit and drinks by it.6 min read
Running in the heat
Start with the guideRunning in the heatHeadwinds and hills: what wind and gradient cost a runnerWhat a headwind, a tailwind and a climb do to your pace at the same effort, worked out from the physiology.6 min readRunning in the heatIdeal marathon temperature: what the race data actually showsWhat 1.8 million finishes and ten years of race days say about the best weather for your marathon, in °C and °F.6 min readRunning in the heatHow hot is too hot to run? Limits in °C and °F, with sourcesThe limits sports doctors use, why the thermometer alone misleads, and the air temperatures that hit each risk level.6 min readRunning in the heatMarathon heat flags: what green, yellow, red and black meanWhat each heat-flag colour means for your race, where the numbers come from, and how often four big marathons reach them.6 min readRunning in the heatWBGT for runners: the heat number behind marathon flagsWhy the heat-stress number race medics use beats the thermometer, and how to read it for your own run.6 min readRunning in the heatHeat-adjusted pace calculators compared: Hadley, Davis, RunnaSee what each heat calculator asks for and gives back, where they agree, and what none of them can know about your race.6 min readRunning in the heatDoes humidity affect running pace? Why dew point matters moreLearn when humidity slows you, why the dew point beats the humidity percentage, and how to set a pace for a muggy run.6 min readRunning in the heatWhat is a good dew point for running? Bands in °C and °FKnow which dew points suit a hard run, which need a slower pace, and why a good dew point can still mean a hot day.6 min readRunning in the heatRunning in heat: dew point explained, with a °C and °F chartRead the dew point like an experienced runner, convert it either way, and know how much to adjust your pace on a humid day.6 min read
Running weather apps and kit
Start with the guideRunning weather apps and kitGarmin race day weather: what the widget shows, and what it missesGarmin's race glance gives a countdown, a predicted time and the weather. Here's what that weather covers, and how to fill the gaps.6 min readRunning weather apps and kitEpic Ride Weather for running: does it work, and what to use insteadA mature, well-liked cycling app can forecast your run. Here's what carries over, what doesn't, and the runner-first alternatives.6 min readRunning weather apps and kitRunna Adapt for Heat: how it works, and the alternativesWhat Runna's heat feature changes in your sessions, where it stops, and which free and paid tools fill the gaps.6 min readRunning weather apps and kitWyndo alternatives: running weather for any route and any raceWhat Wyndo does well, where its start-line view stops, and five alternatives for your own route, more races or an app on your phone.6 min readRunning weather apps and kitMeteoPace alternatives: race weather plans without the paywallWhat MeteoPace does well, what its free tier leaves out, and the free tools that cover the gap for a race or your own route.6 min readRunning weather apps and kitRacecast alternatives: free ways to plan your race-day weatherWhat Racecast does well, who should stay with it, and five alternatives for your own route, your finish time or a thinly covered race.6 min readRunning weather apps and kitWhat to wear for a marathon in heat, cold or rainChoose race-day kit for the weather you'll actually meet between the start and your finish, using ten years of real race days.6 min readRunning weather apps and kitWhat to wear running at every temperature, in °C and °FPick the right top, legs and extras for any temperature, and adjust for wind, rain, sun and your own pace.6 min readRunning weather apps and kitBest free running weather apps 2026: no login, no subscriptionGet the forecast, the kit call and the heat along your route for nothing, and know what the paid apps add.6 min read
Race-day weather
Start with the guideRace-day weatherLive tracking for running events: how livedot worksSee what supporters see, how runners go live, and what an organiser does to get a road race, trail race or ultra live.6 min readRace-day weatherComrades Marathon weather: up and down runs, race by raceSee how cold the 05:30 start gets, how hot the afternoon gets, and how the up and down runs differ, race by race.6 min readRace-day weatherBerlin Marathon weather history: why the fast course stays fastSee ten years of Berlin race-day weather, what the world-record mornings had in common, and how warm it gets at your finish time.6 min readRace-day weatherLondon Marathon weather history: race-day heat by yearSee London Marathon temperatures by year, why 2018 was the hot one, and what the weather means at your own finish time.6 min readRace-day weatherBoston Marathon weather history: every race day, 2015–2024See what every Boston race day from 2015 to 2024 brought, from the 2018 cold rain to warm sunny starts, and plan yours.6 min read
Ultras and multi-day runs
Start with the guideUltras and multi-day runsFastpacking weather: plan every day of a multi-day runRead each day's forecast at the hours you'll be moving and the place you'll sleep, with everything on your back.6 min readUltras and multi-day runsMountain ultra weather: cold at altitude, night and storms (UTMB)How much colder the passes are, which ones you'll cross in the dark, and what wind, rain and storms do at a hiking pace.6 min readUltras and multi-day runsRunning an ultramarathon in the heat: Western States, Badwater and youWhat 15 to 45 hours of heat does to you, what two famous hot ultras teach, and how to plan your own.6 min readUltras and multi-day runsMarathon des Sables weather: heat, cold nights and wind in the SaharaWhat the Moroccan Sahara does in April, stage by stage and night by night, with the heat stress worked out in numbers.6 min read
Know the heat before you run.
Map your run free, then keep your runs, join your club’s page and get each run’s forecast the evening before with a free account. The phone apps, with live tracking, are coming.