Roy, UT Weather Forecast
Weber County, Utah
Seven-day outlook
37–62°F across the weekThe week runs between 37° and 62°, with tomorrow the warmest day of it. The second half leans cooling, and Monday is the coolest day in it. Sunday is the wettest day, peaking near 95%. 4 of the 7 days stay dry.
Forecasts come from the National Weather Service's own computer models, and current conditions from the nearest reporting weather station. Both are served through the weather API. A forecast is guidance, not a warning, and anything the Weather Service has actually issued is on the live map.
The written summaries on this page are generated from the forecast data above, not by a meteorologist. Each sentence is a reading of the same numbers you can see, and no forecaster has reviewed them.
About the Roy forecast
Roy sits at 41.1715°N, 112.0485°W in Weber County, Utah. The forecast above is drawn for that point from the National Weather Service's own computer models: a seven-day outlook, and a finer-grained one covering the next eighteen hours where it reaches, and the radar and alert panels show what the Weather Service has out over the area right now.
- County
- Weber County
- Coordinates
- 41.1715°N, 112.0485°W
- Population
- 38,592 · 2023 estimate
- Land area
- 8.149 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Roy, and the forecast is for that location, not for every address inside the city limits, and a large city can have real weather differences from one side to the other.
How well can the network see Roy?
The nearest Doppler radar is KMTX (Salt Lake City, UT), 22 miles to the WNW. A WSR-88D's lowest routine scan sits half a degree above horizontal, and the earth curves away beneath it, so by the time that beam reaches Roy its center is about 1,200 ft above ground. That is about as close as radar coverage gets in the United States: the lowest scan is still near the ground when it reaches Roy, so low-level rotation and the leading edge of a gust front show up on it. Roy is closer to its radar than 82% of US cities.
The closest instrument actually measuring the air is KOGD · Ogden/Hinckley Arpt on the ASOS/AWOS network, 2.3 miles away. Close enough that its readings are, for practical purposes, the conditions in town.
Beam height is the standard 4/3-earth approximation for the 0.5° scan and assumes normal refraction; it is where the center of the beam is, not its edges, and unusual temperature profiles bend it. Radar siting from the NWS WSR-88D network, station positions from the Utah observing network as of this build.
Forecasts near Roy
- Riverdale, UT2 mi
- Clinton, UT2 mi
- Sunset, UT3 mi
- West Haven, UT3 mi
- Washington Terrace, UT4 mi
- West Point, UT4 mi
- South Ogden, UT5 mi
- Clearfield, UT5 mi
Elsewhere in Utah
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