Mason City (I-35)RMCI4
Beside a road/11.8 mi away/1,234 ft/157 ft above here
temp, pavement temp, wind, visibility, precip
Alert. A Freeze Watch is in force for Sheffield until 9 AM Saturday. Read the alert in full, and see what it means in the Field Book.
Now. Sheffield is 47° and partly cloudy at 10 PM. With the wind it feels like 42°. The dew point is 39°, so the air feels dry and comfortable. Moderate breeze from the northwest at 13 mph, gusting to 29 mph.
Today and tonight. Tonight falls to about 44° by 1 AM, with some cloud. No rain is expected for the rest of the day.
The week. The warmest day ahead is Wednesday, near 73°, and the coolest tomorrow, near 51°. The days ahead look dry. The windiest day is tomorrow, with wind to 25 mph. The first freeze could come Saturday, a low of 31°.
The sky now. The Moon is a waxing crescent, 26% lit, and stays below the horizon until dawn. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The day is 11 hours 6 minutes long, 2 minutes shorter than yesterday.
As of 10:00 PM in Sheffield, Iowa.
Air quality
Index 42, good, led by fine particles. Read at 10 PM from its reporting area, Waterloo (IA), 50 miles off.
Good each day through Fri Oct 16, led by fine particles. Yesterday measured 31, good.
No smoke near the ground through Sat 7 PM.
Precipitation
0.97 in in the last 24 hours, 0.98 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 7 miles or more through Sat 7 PM, lowest 8 miles Sat 3 AM.
F
Now, today, and the week
On the radar over Sheffield, IowaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
The 5 instruments nearest Sheffield, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 6.6 miles away.
measured now3 instruments
Mason City (I-35)RMCI4
Beside a road/11.8 mi away/1,234 ft/157 ft above here
temp, pavement temp, wind, visibility, precip
HamptonHPT
At an airfield/12.2 mi away/1,149 ft/72 ft above here
temp, wind, gust, visibility, precip, pressure
Citizen station GW5166GW5166
In a volunteer observer's own ground/17.7 mi away/1,131 ft/54 ft above here
temp, humidity, wind, precip, pressure
measured daily2 instruments
Rockwell 0.7 NNWIA-CG-14
In a volunteer observer's own ground/6.6 mi away/1,120 ft/43 ft above here
precip, snowfall, snow depth
HamptonHPTI4
At a cooperative observer's station/10.0 mi away/1,125 ft/48 ft above here
snowfall, snow depth, precip, high, low
Station report
The nearest airport reporting now, 12.2 mi from Sheffield, Iowa. From its report of Oct 15, 2026, 10:15 PM local time: 3 of its 6 sheets.
Broken at 4,900 ft; the ceiling is 4,900 ft; visibility 10 mi or more.
44.6 F with a dew point of 37.4 F, 76 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,700 ft up; the lowest cloud reported is at 4,900 ft.
From the northwest (310 degrees) at 21 mph, gusting 29 mph: force 5, a fresh breeze on the Beaufort scale. The strongest gust today was 31 mph.
The full report of Hampton, in 6 sheets, each beside the Field Book plates that explain it
0in
Snow on the ground
Measured at Hampton (HPTI4), 10.0 miles from here, read 14 Oct, 07:00. measured daily
15 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.