Storm Station
Jefferson, Iowa
63° 69°/63°
Overcast· Feels like 63°·Light breeze 4 mph SSE
A slight chance of showers and thunderstorms before 4am, then patchy fog and a slight chance of showers and thunderstorms between 4am and 5am, then patchy fog and a chance of showers and thunderstorms. Cloudy, with a low around 61. Southeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
0UV Low
-Air quality
98%Humidity
100%Cloud
Now
3:30 AM
63feels63
now, overcast
Today
Sep 27
6963
fog
Mon
Sep 28
6961
fog
Tue
Sep 29
6459
82%
showers light
Wed
Sep 30
6663
74%
15mph
showers
Thu
Oct 1
6451
45%
18mph
drizzle light
Fri
Oct 2
6244
30%
clear day
Sat
Oct 3
6542
13%
14mph
overcast
63°
69°63°
69°61°
64°59°
66°63°
64°51°
62°44°
65°42°

As of 3:30 AM in Jefferson, Iowa.

What is measuring near here

The 6 instruments nearest Jefferson, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.1 miles away.

measured now4 instruments

Jefferson (IA 4)RJFI4

Beside a road/2.7 mi away/1,017 ft/42 ft below here

temp, pavement temp, wind, visibility, precip

Rank564of 652

PerryPRO

At an airfield/17.2 mi away/1,004 ft/55 ft below here

temp, wind, gust, visibility, precip, pressure

Rank211of 652

Ames ScanAMMI4

At a river or reservoir gauge/33.2 mi away/1,073 ft/14 ft above here

temp, wind, gust, humidity, pressure

Rank200of 652

AmesS2031

At a soil climate station/33.9 mi away/1,073 ft/14 ft above here

temp, humidity, soil temp, soil moisture

Rank-

measured daily2 instruments

Jefferson 2 NWJFFI4

At a cooperative observer's station/0.1 mi away/1,060 ft/1 ft above here

snowfall, snow depth, precip, high, low

Rank-

Jefferson 0.1 ENEIA-GN-8

In a volunteer observer's own ground/0.5 mi away/1,063 ft/4 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Perry, drawn

The nearest airport reporting now, 17.2 mi from Jefferson. From its report of Sep 27, 2026, 3:15 AM local time: 3 of its 6 sheets.

The sky

Overcast at 500 ft; the ceiling is 500 ft; visibility 10 mi or more.

Section of the sky over Perry, height above the station to scale: overcast cloud with its base at 500 feet, the ceiling at 500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PROFIG. A THE SKY OVER PERRYSECTION, 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 STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 500 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEPerry, the skySTATION REPORT · ASOS PROTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-PRO-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

63.0 F with a dew point of 63.0 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 500 ft.

Chart of the air at Perry: temperature 63.0 degrees Fahrenheit and dew point 63.0, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PROFIG. B THE AIR AT PERRYTHE 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, OVC 500 FTTEMPERATURE AND DEW POINT 63.0 F, 63.0 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 POINTTITLEPerry, the airSTATION REPORT · ASOS PROTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-PRO-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southeast (150 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Perry, north up: blowing from 150 degrees, the south southeast, at 6 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 PROFIG. C THE WIND AT PERRYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 150°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEPerry, the windSTATION REPORT · ASOS PROTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-PRO-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Perry, 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 Jefferson

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