INL - Arco, Idaho Weather StationUSBR-RRCI
At a river or reservoir gauge/2.9 mi away/-/- ft from here
temp, wind, gust, humidity, pressure
Now. Butte City is 38° and mostly clear at 12 AM. With the wind it feels like 35°. The dew point is 28°, so the air feels dry and comfortable. Light breeze from the north at 4 mph.
Today and tonight. It warms to about 61° by 3 PM. Tonight falls to about 35° by 4 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 tomorrow, near 62°, and the coolest Thursday, near 53°. Rain is possible Tuesday (32%), Wednesday (49%) and Thursday (45%). The first freeze could come tomorrow, a low of 32°.
The sky tonight. The sun sets at 6:48 PM. The Moon is a waxing crescent, 34% lit, and sets at 10:37 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 1 minutes long, 3 minutes shorter than yesterday.
As of 12:00 AM in Butte City, Idaho.
Air quality
Index 29, good, led by ozone. Read at 11 PM from its reporting area, Craters of the Moon National Monument (ID), 19 miles off.
Yesterday measured 28, good.
No smoke near the ground through Sat 6 PM.
Precipitation
None in the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 10 miles or more through Sat 6 PM.
F
Now, today, and the week
On the radar over Butte City, IdahoReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
The 5 instruments nearest Butte City, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.4 miles away.
measured now3 instruments
INL - Arco, Idaho Weather StationUSBR-RRCI
At a river or reservoir gauge/2.9 mi away/-/- ft from here
temp, wind, gust, humidity, pressure
Arco 17 SW04126
At a climate reference station/18.5 mi away/5,920 ft/600 ft above here
temp, humidity, wind, solar, precip
D6 - PuzzleITD95
Beside a road/19.1 mi away/4,934 ft/386 ft below here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Arco 0.9 ESEID-BT-1
In a volunteer observer's own ground/2.4 mi away/5,333 ft/13 ft above here
precip, snowfall, snow depth
ArcoAROI1
At a cooperative observer's station/3.4 mi away/5,331 ft/11 ft above here
snowfall, snow depth, precip, high, low
Station report
The nearest instrument reporting now, 19.1 mi from Butte City, Idaho. From its report of Oct 15, 2026, 11:15 PM local time: 3 of its 6 sheets.
No cloud reported; visibility 1.25 mi.
42.4 F with a dew point of 30.2 F, 62 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,800 ft up.
From the northeast (34 degrees) at 9 mph, gusting 11 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 26 mph.
The full report of D6 - Puzzle, in 6 sheets, each beside the Field Book plates that explain it
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Snow on the ground
18 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.