Hourly Weather Forecast - Arco, ID

2 PM
51°F
0%
16mph
W
Partly Cloudy
Humidity
53%
Feels like
51°F
Dew Point
34°F
3 PM
49°F
0%
14mph
WNW
Partly Cloudy
Humidity
60%
Feels like
44°F
Dew Point
36°F
4 PM
46°F
0%
11mph
WNW
Partly Cloudy
Humidity
65%
Feels like
41°F
Dew Point
35°F
4:56 PM
5 PM
44°F
10%
9mph
WNW
Partly Cloudy
Humidity
71%
Feels like
39°F
Dew Point
35°F
6 PM
41°F
0%
8mph
NW
Partly Cloudy
Humidity
75%
Feels like
36°F
Dew Point
33°F
7 PM
38°F
0%
8mph
NW
Partly Cloudy
Humidity
78%
Feels like
33°F
Dew Point
32°F
8 PM
36°F
0%
8mph
NW
Partly Cloudy
Humidity
83%
Feels like
30°F
Dew Point
31°F
9 PM
34°F
0%
7mph
NW
Partly Cloudy
Humidity
87%
Feels like
28°F
Dew Point
30°F
10 PM
32°F
0%
7mph
WNW
Mostly Cloudy
Humidity
95%
Feels like
25°F
Dew Point
31°F
11 PM
31°F
0%
6mph
WNW
Foggy
Humidity
100%
Feels like
24°F
Dew Point
30°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide