Hourly Weather Forecast - Arco, ID

12 AM
29°F
0%
7mph
W
Foggy
Humidity
100%
Feels like
21°F
Dew Point
29°F
1 AM
28°F
0%
8mph
W
Foggy
Humidity
100%
Feels like
21°F
Dew Point
28°F
2 AM
29°F
0%
8mph
W
Foggy
Humidity
100%
Feels like
22°F
Dew Point
29°F
3 AM
30°F
0%
8mph
W
Foggy
Humidity
100%
Feels like
23°F
Dew Point
30°F
4 AM
31°F
0%
8mph
W
Foggy
Humidity
100%
Feels like
24°F
Dew Point
31°F
5 AM
32°F
0%
8mph
W
Foggy
Humidity
100%
Feels like
24°F
Dew Point
32°F
6 AM
33°F
0%
9mph
W
Partly Cloudy
Humidity
98%
Feels like
25°F
Dew Point
32°F
7 AM
34°F
0%
9mph
W
Partly Cloudy
Humidity
94%
Feels like
26°F
Dew Point
32°F
7:55 AM
8 AM
36°F
0%
9mph
W
Partly Cloudy
Humidity
92%
Feels like
29°F
Dew Point
34°F
9 AM
39°F
0%
10mph
W
Partly Cloudy
Humidity
93%
Feels like
33°F
Dew Point
37°F
10 AM
42°F
0%
12mph
WSW
Partly Cloudy
Humidity
88%
Feels like
35°F
Dew Point
39°F
11 AM
44°F
0%
14mph
WSW
Partly Cloudy
Humidity
82%
Feels like
37°F
Dew Point
39°F
12 PM
45°F
0%
15mph
WSW
Partly Cloudy
Humidity
79%
Feels like
38°F
Dew Point
39°F
1 PM
46°F
0%
16mph
WSW
Partly Cloudy
Humidity
77%
Feels like
39°F
Dew Point
39°F
2 PM
46°F
0%
17mph
WSW
Partly Cloudy
Humidity
74%
Feels like
39°F
Dew Point
38°F
3 PM
46°F
0%
16mph
WSW
Partly Cloudy
Humidity
76%
Feels like
39°F
Dew Point
38°F
4 PM
44°F
0%
14mph
WSW
Mostly Sunny
Humidity
78%
Feels like
37°F
Dew Point
38°F
4:56 PM
5 PM
42°F
0%
13mph
WSW
Mostly Clear
Humidity
79%
Feels like
36°F
Dew Point
36°F
6 PM
40°F
0%
11mph
WSW
Mostly Clear
Humidity
80%
Feels like
34°F
Dew Point
35°F
7 PM
39°F
0%
11mph
W
Mostly Clear
Humidity
79%
Feels like
32°F
Dew Point
33°F
8 PM
37°F
0%
11mph
W
Mostly Clear
Humidity
80%
Feels like
29°F
Dew Point
31°F
9 PM
35°F
0%
11mph
W
Mostly Clear
Humidity
78%
Feels like
28°F
Dew Point
29°F
10 PM
34°F
0%
10mph
W
Mostly Clear
Humidity
84%
Feels like
26°F
Dew Point
30°F
11 PM
33°F
0%
10mph
W
Partly Cloudy
Humidity
84%
Feels like
25°F
Dew Point
28°F

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

A fast-moving series of atmospheric rivers continue to drench the Pacific Northwest today through Thursday.

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Today's Weather Outlook

Today'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