Derby, KS Weather Forecast

Sedgwick County, Kansas

Conditions now · Sun, 7:50 PM CDT

83°FDewpoint 71°FScattered rain

Measured at GW3646 · CWOP · 1.5 mi away · 19 minutes ago

Derby, KS at Sun, 7:50 PM CDT: 83°F and scattered rain, measured at GW3646 1.5 mi away, 19 minutes ago. Rest of today: high 90°F, low 77°F, 28% chance of rain. No active National Weather Service alerts for this location.

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Rain: light → heavyRadar mosaic © Iowa Environmental Mesonet / NWS · Basemap © OpenStreetMap contributors, © Protomaps

Hour by hourTemperatureChance of rain

11 AMScattered rain77°F28%

12 PMPartly cloudy81°F18%

1 PMPartly cloudy83°F10%

2 PMPartly cloudy86°F7%

3 PMMostly sunny88°F6%

4 PMMostly sunny90°F5%

5 PMMostly sunny89°F6%

6 PMClear88°F5%

7 PMClear85°F4%

8 PMClear81°F2%

9 PMMostly sunny79°F2%

10 PMClear78°F2%

Seven-day outlook

63–96°F across the week

TodaySep 13Scattered rain · 28% chance of rain77°F / 90°F

MonSep 14Mostly sunny · 4% chance of rain73°F / 96°F

TueSep 15Scattered rain · 49% chance of rain76°F / 94°F

WedSep 16Rain likely · 59% chance of rain70°F / 92°F

ThuSep 17Mostly sunny · 9% chance of rain72°F / 91°F

FriSep 18Mostly sunny · 16% chance of rain71°F / 88°F

SatSep 19Scattered rain · 33% chance of rain67°F / 82°F

SunSep 20Scattered rain · 31% chance of rain63°F / 68°F

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.

About the Derby forecast

Derby sits at 37.5596°N, 97.2558°W in Sedgwick County, Kansas. 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: Sedgwick County
Coordinates: 37.5596°N, 97.2558°W
Population: 26,233 · 2023 estimate
Land area: 10.412 sq mi

Place data from the US Census Bureau. Coordinates are the Census internal point for Derby, 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 Derby?

The nearest Doppler radar is KICT (Wichita, KS), 12 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 Derby its centre is about 630 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 Derby, so low-level rotation and the leading edge of a gust front show up on it. Derby is closer to its radar than 94% of US cities.

The closest instrument actually measuring the air is KIAB · McConnell AFB on the ASOS/AWOS network, 4.4 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 centre 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 Kansas observing network as of this build.

Forecasts near Derby

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