Powered by ECMWF & GFS

Forecast anywhere
in the world

AerisCast combines ECMWF and GFS models to deliver point forecasts — hourly detail, atmospheric data, snowfall analysis and flood risk, anywhere on earth.

Open Forecast Tool See Plans
ECMWFOpen-Meteo · HRES 9km · 10-day
GFSvia Open-Meteo · 16-day
Globalany location on earth
Hourlyup to 16 days (GFS)
What's included

Everything you need
to understand the sky

No fancy maps. Just the forecast. Because sometimes you just want to know the weather.

🏠
Home — Daily Overview
Up to 16 days of daily highs, lows, precipitation, conditions and average wind at a glance.
🕐
Hourly — Hour by Hour
Full hourly breakdown with temperature, feels like, precipitation, wind and humidity for every hour.
📊
Graphs — Visual Charts
Interactive charts for all main parameters — temperature, precipitation, wind, pressure, cloud cover and snow.
🌐
Charts — Global Model Maps
Animated global weather model charts from ECMWF HRES and GFS — MSLP & precipitation, thickness, 850/500hPa temperature, 700hPa humidity, accumulated precipitation and snow level. Up to 10 days ECMWF or 16 days GFS, updated every 6–12 hours.
📡
Radar — Live Reflectivity
Animated radar reflectivity for the USA (CONUS, Northeast, Southeast, Midwest, West), United Kingdom, and Western and Central Europe. Last 6 frames (~30 minutes), with play/pause and frame-by-frame scrubbing.
🌐
Atmosphere — Upper Air
Pressure-level data at 925, 850, 700 and 500hPa — thickness, temperature and geopotential heights. The kind of detail usually reserved for professional met tools, presented clearly for the first time in a consumer weather app.
❄️
AerisSnow — Snow Detail
Snow phase, accumulation, quality (Powder/Good/Poor), visibility impact and snow level by hour.
🌊
AerisFlood — Flood Risk
Hourly rainfall rate, running accumulation, intensity classification and flash flood risk assessment.
⛈
Aeris Storm — Storm Environment
7-day daily storm potential rating using CAPE, CIN, lifted index, precipitable water and freezing level. Identifies hail, flash flood and damaging wind risk. GFS model, Pro users unlock full 7-day range.
Pricing
Free
No credit card required
$0/mo
A powerful free tier with real forecast data from ECMWF and GFS.
  • ✓5-day ECMWF or 7-day GFS home forecast
  • ✓24h ECMWF or 36h GFS hourly data
  • ✓48h atmospheric data
  • ✓24h AerisSnow (ECMWF) / 48h (GFS)
  • ✓24h AerisFlood (ECMWF) / 48h (GFS)
  • ✓Charts tab — ECMWF & GFS global model maps
  • ✓Radar — live reflectivity (USA, UK, Europe)
  • 🔒Graphs tab — all charts
  • 🔒Extended home forecast range
  • 🔒Extended hourly forecast range
  • 🔒Full atmospheric data range
  • 🔒Full AerisSnow range
  • 🔒Full AerisFlood range
  • 🔒Aeris Storm full 7-day range
Start Free
⭐ Most Popular
AerisPro
Billed every 3 months · cancel anytime
$6/mo
Unlock the full forecast range across every tab and both models.
✓ 7-day free trial — cancel anytime, charged after trial ends
  • ✓Full 10-day ECMWF HRES forecast
  • ✓Full 16-day GFS forecast
  • ✓Up to 240h ECMWF HRES hourly data (10-day)
  • ✓Up to 120h GFS hourly data
  • ✓Graphs tab — all charts unlocked
  • ✓Charts tab — ECMWF & GFS global model maps
  • ✓Radar — live reflectivity (USA, UK, Europe)
  • ✓Full AerisSnow + AerisFlood range
  • ✓Aeris Storm — full 7-day storm environment
  • ✓Full atmospheric data — both models
Model comparison

Free vs Pro

See exactly what you unlock on each model, tab by tab.

FeatureFreeAerisPro
Home
Daily forecast range5 days9 days
Daily hi / lo / precip / wind✓✓
Hourly
Hourly forecast range24 hours240 hours (10-day)
Temperature, precip, wind, humidity✓✓
Graphs
All parameter charts✗✓
Temperature, precip, wind, pressure, cloud, snow✗✓
Charts
Global model map animations✓✓
ECMWF: MSLP, thickness, 850/500hPa, humidity, precip, snow level✓✓
Radar
Live reflectivity — USA, UK, Europe✓✓
6-frame animation (~30 min history)✓✓
Atmosphere
Upper air data range48 hours9 days
925 / 850 / 700 / 500hPa levels✓✓
AerisSnow
Snow forecast range24 hoursFull 10-day range
Phase, accumulation, quality, snow level✓✓
AerisFlood
Flood data range24 hours10-day (240 hours)
Rainfall rate, accumulation, flash flood risk✓✓
Aeris Storm
Storm environment data✗✗
Available on GFS onlySwitch to GFS for storm data
FeatureFreeAerisPro
Home
Daily forecast range7 days16 days
Daily hi / lo / precip / wind✓✓
Hourly
Hourly forecast range36 hours16 days
Temperature, precip, wind, humidity✓✓
Graphs
All parameter charts✗✓
Temperature, precip, wind, pressure, cloud, snow✗✓
Charts
Global model map animations✓✓
GFS: MSLP, thickness, 850/500hPa, humidity, precip, accumulated precip✓✓
Radar
Live reflectivity — USA, UK, Europe✓✓
6-frame animation (~30 min history)✓✓
Atmosphere
Upper air data range36 hours16 days
925 / 850 / 700 / 500hPa levels✓✓
AerisSnow
Snow forecast range48 hours16-day range
Phase, accumulation, quality, snow level✓✓
AerisFlood
Flood data range48 hours5 days (120h)
Rainfall rate, accumulation, flash flood risk✓✓
Aeris Storm
Storm environment range2 days7 days
CAPE, lifted index, freezing level, hazard assessment✓✓
Nil / Low / Moderate / High / Extreme rating✓✓

Ready to see the full picture?

Join AerisPro for $6/month and unlock the complete forecast range on every tab, for every location on earth.

7-day free trial — cancel anytime, charged after trial ends.