Storm Station
Derby, Iowa
60°
Light rain· Feels like 60°·Light breeze 5 mph SE
Patchy fog and showers and thunderstorms likely. Cloudy, with a low around 59. Southeast wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
-UV
-Air quality
100%Humidity
97%Cloud

What is measuring near here

The 5 instruments nearest Derby, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.6 miles away.

measured now3 instruments

CharitonCNC

At an airfield/7.9 mi away/1,047 ft/38 ft below here

temp, wind, gust, visibility, precip, pressure

Rank242of 652

Osceola (US 34)ROSI4

Beside a road/18.8 mi away/1,096 ft/11 ft above here

temp, pavement temp, wind, visibility, precip

Rank571of 652

measured daily2 instruments

Lucas 0.3 NWIA-LC-2

In a volunteer observer's own ground/7.2 mi away/974 ft/111 ft below here

precip, snowfall, snow depth

Rank-

Chariton 1 ECHRI4

At a cooperative observer's station/8.8 mi away/974 ft/111 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Chariton, drawn

The nearest airport reporting now, 7.9 mi from Derby. From its report of Sep 27, 2026, 3:55 AM local time: 3 of its 6 sheets.

The sky

Broken at 400 ft, broken at 3,000 ft, overcast at 4,200 ft; the ceiling is 400 ft; visibility 3 mi.

Section of the sky over Chariton, height above the station to scale: broken cloud with its base at 400 feet, broken cloud with its base at 3,000 feet, overcast cloud with its base at 4,200 feet, the ceiling at 400 feet, and visibility of 3 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CNCFIG. A THE SKY OVER CHARITONSECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 4,200 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 3,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYBKN 400 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 400 FTVISIBILITY, MILES: 3 MI0510TITLEChariton, the skySTATION REPORT · ASOS CNCTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-CNC-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

59.0 F with a dew point of 59.0 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 400 ft.

Chart of the air at Chariton: temperature 59.0 degrees Fahrenheit and dew point 59.0, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 400 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CNCFIG. B THE AIR AT CHARITONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00050 F60 F70 FSATURATED AT THE GROUNDLOWEST CLOUD REPORTED, BKN 400 FTTEMPERATURE AND DEW POINT 59.0 F, 59.0 FRELATIVE HUMIDITY 100 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLEChariton, the airSTATION REPORT · ASOS CNCTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-CNC-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east southeast (120 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 13 mph.

Plan of the wind at Chariton, north up: blowing from 120 degrees, the east southeast, at 5 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CNCFIG. C THE WIND AT CHARITONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 120°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEChariton, the windSTATION REPORT · ASOS CNCTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-CNC-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Chariton, in 6 sheets, each beside the Field Book plates that explain it

-in

Snow on the ground

Elsewhere in Iowa

15 places, each with its own forecast and its own instruments.

Near Derby

The nearest places, each with its own forecast and the instruments nearest it.