Air quality plus the seasonal allergy outlook for your area
NWS advisories, watches and warnings — storms, snow, heat and wind
Active tropical systems, forecast tracks and landfall outlook
Sun strength hour by hour and when you need SPF today
Live EPA air quality readings — PM2.5, ozone and what they mean for your lungs
Ocean and lake water temperatures for beaches coast to coast
Summit forecasts and conditions for resorts across the US and Canada
Snowdon, Ben Nevis, Scafell Pike — summit forecasts for walkers
Cancun, Paris, Rome, Tokyo — forecasts for trips abroad
Tonight's phase, moonrise, the next full moon, eclipses and meteor showers.
Storm cells on live radar and where thunderstorms are being reported right now.
A straight yes or no, with the minute the rain starts and stops.
Red flag conditions, fire danger and where wildfire smoke is drifting.
The real odds school is cancelled tomorrow — from the actual snowfall forecast.
Who can see the aurora tonight?