PeruVYS
At an airfield/7.3 mi away/653 ft/40 ft below here
temp, wind, gust, visibility, precip, pressure
Alert. A Frost Advisory is in force for Granville until 9 AM tomorrow. Read the alert in full, and see what it means in the Field Book.
Now. Granville is 49° and mostly cloudy at 4 AM. With the wind it feels like 44°. The dew point is 41°, so the air feels dry and comfortable. Moderate breeze from the west-northwest at 15 mph.
Today and tonight. It warms to about 55° by 3 PM. Tonight falls to about 33° by 7 AM, under a mostly clear sky. Frost can form on the ground in sheltered spots. No rain is expected for the rest of the day.
The week. The warmest day ahead is Thursday, near 75°, and the coolest tomorrow, near 57°. The days ahead look dry. Frost is possible tomorrow morning, a low of 33°.
The sky tonight. The sun sets at 6:15 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:07 PM. The next full Moon is Sunday, Oct 25. After dark, look for Saturn, bright in the east-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 sky is forecast to stay clear: a good night to look up. The day is 11 hours 7 minutes long, 3 minutes shorter than yesterday.
As of 4:00 AM in Granville, Illinois.
Air quality
Index 14, good, led by fine particles. Read at 4 AM from its reporting area, Peoria (IL), 36 miles off.
Good each day through Mon Oct 19, led by fine particles. Yesterday measured 25, good.
No smoke near the ground through Sun 1 AM.
Precipitation
0.55 in in the last 24 hours, 0.66 in over the last 3 days, to Fri 3 AM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 8 miles or more through Sun 1 AM, lowest 9 miles Fri 8 AM.
F
Now, today, and the week
On the radar over Granville, IllinoisReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
The 6 instruments nearest Granville, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.9 miles away.
measured now4 instruments
PeruVYS
At an airfield/7.3 mi away/653 ft/40 ft below here
temp, wind, gust, visibility, precip, pressure
I-39/Lincoln Bridge (593000)SS0776
Beside a road/8.2 mi away/-/- ft from here
temp, pavement temp, wind, visibility, precip
Starved Rock Met Station Near North Utica411926088585501
At a river or reservoir gauge/13.4 mi away/467 ft/226 ft below here
temp, wind, gust, humidity, pressure
Citizen station KB9MXLKB9MXL
In a volunteer observer's own ground/32.3 mi away/772 ft/79 ft above here
temp, humidity, wind, precip, pressure
measured daily2 instruments
McNabb 1.4 NWIL-PM-6
In a volunteer observer's own ground/4.9 mi away/688 ft/5 ft below here
precip, snowfall, snow depth
HennepinHNPI2
At a cooperative observer's station/5.8 mi away/513 ft/180 ft below here
snowfall, snow depth, precip, high, low
Station report
The nearest airport reporting now, 7.3 mi from Granville, Illinois. From its report of Oct 16, 2026, 4:10 AM local time: 3 of its 5 sheets.
Overcast at 2,000 ft; the ceiling is 2,000 ft; visibility 10 mi or more.
From the west (280 degrees) at 13 mph, gusting 21 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 21 mph.
At 653 ft above sea level, 2 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.22 inHg and the temperature at 56.7 F; the station's altimeter setting of 30.02 inHg means its barometer reads 29.32 inHg.
The full report of Peru, in 5 sheets, each beside the Field Book plates that explain it
0in
Snow on the ground
Measured at Hennepin (HNPI2), 5.8 miles from here, read 15 Oct, 17:00. measured daily
23 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.