National Weather Service United States Department of Commerce
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Forecasts of future precipitation are derived from weather models and from forecaster judgment. Although accuracy of precipitation forecasts can vary from weather system to weather system, such forecasts are important for river forecasts.

Low Bandwidth
 

Forecast precipitation over next 24 & 48hrs
Static images. Updates every 6-12hrs.

More national forecast precipitation options
Static images. Updates every 6-12hrs.

 

Full-Featured
 

Forecast precipitation interactive maps
Interactive maps with dynamic overlays. Gridded estimates from a combination of rain gauges and radar. Not recommended for mobile devices.