Travel & Outdoor Built for apps where weather changes plans.

Your users deserve
weather they can trust.

Hikers, skiers, event planners, and travelers make real decisions based on your app's forecast. WeatherLens gives you accuracy-scored, confidence-rated forecasts so you can show users exactly how reliable today's prediction is.

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16-dayforecast horizon
94%+7-day temp accuracy
<100msglobal edge latency

Built for Apps Like Yours

From hiking trail conditions to ski resort planning, WeatherLens powers the features your users care about most.

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Trail & Hiking Apps
Show hikers the 3-hour window with the lowest rain probability. Pair it with accuracy scores so users know when to trust the forecast and when to pack the rain jacket anyway.
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Ski & Snow Sports
16-day snowfall forecasts with confidence scores. Show resort visitors if the powder day is really coming, backed by historical accuracy data for that mountain range.
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Camping & Glamping
Climate normals tell campers what weather to expect — not just the raw forecast. Surface the difference between an unusual cold snap and baseline seasonal conditions.
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Travel Planning Apps
Help travelers pack smart and plan ahead. Pair 16-day forecasts with multi-year climate baselines so users know if July in Amsterdam is usually rainy or gloriously sunny.
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Events & Festivals
Event organizers need certainty. Give them an accuracy confidence band alongside the forecast — know whether Thursday&apos;s rain prediction is rock-solid or a coin flip.
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Cycling & Running
Athletes care about wind, humidity, UV, and precipitation windows. WeatherLens delivers all of it in one call with historical accuracy benchmarks per location.

Don't just show the forecast. Show how confident you are.

WeatherLens is the only weather API that scores its own accuracy. Give your users a confidence layer no other app has.

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Accuracy Score per Location
Query /api/v1/accuracy for any lat/lon to see how well forecasts have matched observed conditions — by lead time (1-day, 3-day, 7-day) and by source. Show users a confidence rating right in your UI.
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Climate Normals as Context
"Is 45°F in Denver in October normal?" with /api/v1/climate you can answer instantly. Surface the multi-year baseline alongside the forecast so users understand if conditions are unusual or expected.
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16-Day Horizon for Planning
Travel and trip planning apps need more than 7 days. WeatherLens delivers up to 16-day forecasts via Open-Meteo, blended with NWS precision for the first 7 days for US locations.
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Global Coverage
Your users travel everywhere. WeatherLens works for any lat/lon on the planet. NWS precision for US locations, Open-Meteo global coverage for international destinations. One API, one key, anywhere.

One Call. Everything You Need.

Here's what a forecast response looks like for a hiking destination.

GET /api/v1/forecast?lat=36.4864&lon=-118.5658&days=7
{
  "location": {
    "lat": 36.4864, "lon": -118.5658,
    "name": "Sequoia National Park, CA"
  },
  "forecast": [
    {
      "date": "2026-06-12",
      "highF": 78, "lowF": 52,
      "precipProbPct": 5,
      "wind": { "mph": "5-10", "dir": "W" },
      "conditions": "Clear sky",
      "uvIndex": 9,
      "humidityPct": 35,
      "confidenceScore": 0.94
    },
    {
      "date": "2026-06-13",
      "highF": 74, "lowF": 50,
      "precipProbPct": 30,
      "conditions": "Partly cloudy",
      "confidenceScore": 0.87
    }
  ],
  "accuracy": {
    "tempWithin2F_7day": 0.942,
    "precipAccuracy_7day": 0.883,
    "source": "NWS+OpenMeteo blend"
  }
}

Start Building in 5 Minutes

Free tier includes 100 requests/day — enough to prototype your entire weather feature. No credit card required.

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