UV, wind, rain, and temperature before every trail. Know what's coming before you leave the trailhead.
Lightning on an exposed ridge is the most serious hiking weather risk. It's Nice Out flags approaching storms in your hourly forecast so you can time your summit and descent safely.
Above treeline UV exposure is intense — at altitude there's less atmosphere filtering radiation. We flag UV above 6 and show peak exposure windows so you can plan breaks in shade.
Wind above 30 mph on an open ridge is dangerous and exhausting. See hourly wind speed so you can summit during a calmer morning window before afternoon gusts build.
Temperature falls ~3.5°F per 1,000 feet. Save multiple locations — your trailhead and the summit — to see the full temperature range your hike will cover.
Rain makes roots and rocks slippery for hours after it stops. The hourly forecast helps you see whether yesterday's rain is clearing in time for a safe hike today.
Planning a pre-dawn start or hoping to catch sunset from the summit? Know exactly how much daylight you have to work with for every hike.
Weather changes fast on the trail. It's Nice Out helps you pack the right layers without overstuffing your pack.
Lightning is the single biggest weather hazard on a hike. Any thunderstorm within 10 miles of an exposed ridge is a reason to descend. Rain combined with cold creates hypothermia risk. Wind above 30 mph on open terrain is tiring and can cause loss of footing. Check the full hourly forecast — not just current conditions — before you set out.
Start early — ideally before 7am — to avoid afternoon thunderstorms that build in mountainous areas, and to minimize UV exposure during peak hours (10am–4pm). It's Nice Out's hourly forecast shows you exactly when conditions are best and when storms are likely to build.
Temperature drops roughly 3.5°F (2°C) for every 1,000 feet of elevation gain. On a 4,000-foot climb you might start in 75°F heat and reach the summit in 61°F with wind chill. Save your destination in It's Nice Out to get the forecast at any elevation.
Light rain on a warm day in the forest is fine with rain gear. Rain on exposed rock above treeline makes surfaces dangerously slippery. Cold rain without shelter creates hypothermia risk. Check the hourly rain probability to find dry windows and plan your exposure accordingly.
Download It's Nice Out free. Save multiple locations, check the hourly forecast, and know exactly what conditions await you on the trail.
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