Hourly Weather Forecast - Arco, ID

2 AM
28°F
10%
13mph
SW
Foggy
Humidity
100%
Feels like
17°F
Dew Point
28°F
3 AM
28°F
10%
13mph
SW
Foggy
Humidity
100%
Feels like
18°F
Dew Point
28°F
4 AM
29°F
0%
13mph
SW
Foggy
Humidity
100%
Feels like
19°F
Dew Point
29°F
5 AM
30°F
0%
13mph
SW
Partly Cloudy
Humidity
95%
Feels like
20°F
Dew Point
29°F
6 AM
30°F
0%
13mph
SW
Partly Cloudy
Humidity
95%
Feels like
21°F
Dew Point
29°F
7 AM
32°F
0%
13mph
WSW
Partly Cloudy
Humidity
90%
Feels like
22°F
Dew Point
29°F
7:54 AM
8 AM
34°F
0%
13mph
WSW
Partly Cloudy
Humidity
86%
Feels like
25°F
Dew Point
31°F
9 AM
38°F
0%
14mph
WSW
Partly Cloudy
Humidity
87%
Feels like
29°F
Dew Point
34°F
10 AM
41°F
0%
15mph
WSW
Partly Cloudy
Humidity
82%
Feels like
33°F
Dew Point
36°F
11 AM
43°F
0%
16mph
WSW
Partly Cloudy
Humidity
73%
Feels like
36°F
Dew Point
35°F
12 PM
45°F
0%
16mph
WSW
Partly Cloudy
Humidity
70%
Feels like
38°F
Dew Point
36°F
1 PM
47°F
0%
15mph
W
Partly Cloudy
Humidity
67%
Feels like
40°F
Dew Point
36°F
2 PM
47°F
0%
15mph
W
Partly Cloudy
Humidity
65%
Feels like
41°F
Dew Point
36°F
3 PM
46°F
0%
13mph
W
Mostly Cloudy
Humidity
69%
Feels like
40°F
Dew Point
36°F
4 PM
44°F
0%
11mph
W
Partly Cloudy
Humidity
74%
Feels like
38°F
Dew Point
36°F
4:56 PM
5 PM
42°F
0%
9mph
WNW
Mostly Cloudy
Humidity
82%
Feels like
36°F
Dew Point
36°F
6 PM
39°F
10%
7mph
NW
Partly Cloudy
Humidity
85%
Feels like
34°F
Dew Point
35°F
7 PM
37°F
10%
8mph
N
Partly Cloudy
Humidity
86%
Feels like
32°F
Dew Point
34°F
8 PM
35°F
0%
9mph
N
Mostly Cloudy
Humidity
89%
Feels like
29°F
Dew Point
33°F
9 PM
34°F
0%
7mph
N
Mostly Cloudy
Humidity
91%
Feels like
29°F
Dew Point
32°F
10 PM
34°F
0%
6mph
NW
Mostly Cloudy
Humidity
98%
Feels like
28°F
Dew Point
33°F
11 PM
33°F
0%
8mph
WNW
Partly Cloudy
Humidity
97%
Feels like
26°F
Dew Point
32°F

Rainfall Forecast for Northwest through Thursday

Persistent, Flooding Rain Impacts 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