Rexburg, ID Weather Forecast
Madison County, Idaho
Seven-day outlook
27–59°F across the weekThe week runs between 27° and 59°, with tomorrow the warmest day of it. The second half leans cooling, and Sunday is the coolest day in it. Sunday is the wettest day, peaking near 91%. 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 Rexburg forecast
Rexburg sits at 43.8229°N, 111.7910°W in Madison County, Idaho. 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
- Madison County
- Coordinates
- 43.8229°N, 111.7910°W
- Population
- 39,975 · 2023 estimate
- Land area
- 10.112 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Rexburg, 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 Rexburg?
The nearest Doppler radar is KSFX (Pocatello, ID), 67 miles to the SW. 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 Rexburg its center is about 5,300 ft above ground. That is far enough out that the beam has climbed above the lowest few thousand feet. Storm structure aloft is visible; a shallow circulation near the ground may not be, and a warning here can arrive before anything looks dramatic on the radar picture.
The closest instrument actually measuring the air is KRXE · Rexburg/Madison Cnty on the ASOS/AWOS network, 1.0 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 Idaho observing network as of this build.
Forecasts near Rexburg
- St. Anthony, ID11 mi
- Rigby, ID12 mi
- Iona, ID22 mi
- Ammon, ID26 mi
- Idaho Falls, ID26 mi
- Shelley, ID35 mi
- Blackfoot, ID52 mi
- Jackson, WY56 mi
Elsewhere in Idaho
Boise CityMeridianNampaCaldwellIdaho FallsPocatelloAll Idaho forecasts →