- Snow Report Ski App Pro
- Webcams and Snow Reports
- Snow-Forecast.com
- Snowdon Summit Weather
- SnowFall
- Snowfall Forecast
- Snowflake Weather
- Snowmaking
- SnowNZ
- SnowSafe - Lawinen-App
- Snowtam
- Snowtam Lite
- SNOWTAMS
- Social Weather Sense
- SOCIB
- SOKOL
- Sol: Sun Clock
- Sola: Sun UV & Vitamin D Timer
- Solar Activity
- Solar Activity Pro
- Solar Alert: Protect your Life
- Solar and Lunar Eclipses - Full and Partial Eclipse Calendar
- Solar Cal
- Solar Data & Propagation
- Solar Exposure Lite
- Solar Flux NOAA
- Solar Measurement / PyranometerApp
- Solar Monitor 3
- Solar Monitor Pro
- Aurora - Solar Observatory
- Solar System - Planet Guide
- Solar Time
- Solar weather
- Solar.IO
- SolarDay
- Solario - Geomagnetic Storms
- SolarWatch Daylight Widgets
- SolarWatch Sunrise Sunset Time
- Solis
- Solunar Best Fishing Times
- Solunar Best Hunting Times
- Solunar Calendar - Best Hunting Times and Feeding
- Soléil
- SOPFEU
- SOS Explorer
- South Africa Tides
- Space City Weather
- Space Curiosity
- Space Weather Lite
- Space-Weather
- SpaceWeatherLive
- SparkleWeather
- SpeedoMap-GPS Tracker, Weather
- SPHERE OS
- Spitcast Surf Report
- Splash° - Temperatures
- Spokane News from KREM
- SportsWeather
- Spot Assist Skydiving Tool
- SPOT Weather
- Spot-a-Bee | SPOTTERON
- Spotadvisor - Surf Forecast
- Spotfav: Live Cams & Weather
- SprayWeatherWise
- Squid Mobile
- SRF Meteo - Wetter Schweiz
- SRF News
- SRS Time Tracking Assistance
- St. Louis News from KSDK
- StandClock
- Starkregen App
- Startsiden
- StatClimat
- Statesville Record & Landmark
- StationWeather - METAR and TAF
- Status Tool
- Stavy a průtoky
- Storm 24/7
- Storm Alert for Watch
- Storm Chasers
- Storm Hunter Wx
- Storm Maps: Hail Trace & Radar
- Storm Radar with NOAA Weather
- Storm Search 7
- Storm Surge AR
- Storm Team 10 - WTHI Weather
- Storm Team 3