Hourly Weather Forecast - Arco, ID

4 AM
31°F
10%
13mph
SW
Partly Cloudy
Humidity
79%
Feels like
21°F
Dew Point
25°F
5 AM
32°F
10%
13mph
SW
Partly Cloudy
Humidity
76%
Feels like
22°F
Dew Point
25°F
6 AM
32°F
0%
13mph
SW
Partly Cloudy
Humidity
78%
Feels like
23°F
Dew Point
26°F
7 AM
33°F
0%
13mph
SW
Partly Cloudy
Humidity
76%
Feels like
24°F
Dew Point
26°F
7:54 AM
8 AM
35°F
0%
13mph
WSW
Partly Cloudy
Humidity
76%
Feels like
26°F
Dew Point
28°F
9 AM
38°F
0%
14mph
WSW
Partly Cloudy
Humidity
79%
Feels like
30°F
Dew Point
32°F
10 AM
41°F
0%
16mph
WSW
Partly Cloudy
Humidity
75%
Feels like
33°F
Dew Point
34°F
11 AM
44°F
0%
16mph
WSW
Partly Cloudy
Humidity
69%
Feels like
36°F
Dew Point
34°F
12 PM
46°F
0%
16mph
WSW
Partly Cloudy
Humidity
67%
Feels like
39°F
Dew Point
35°F
1 PM
47°F
0%
16mph
W
Partly Cloudy
Humidity
65%
Feels like
41°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
Partly Cloudy
Humidity
69%
Feels like
40°F
Dew Point
37°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
81%
Feels like
36°F
Dew Point
36°F
6 PM
39°F
0%
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
90%
Feels like
29°F
Dew Point
33°F
9 PM
35°F
0%
7mph
N
Mostly Cloudy
Humidity
91%
Feels like
29°F
Dew Point
32°F
10 PM
33°F
0%
6mph
NW
Mostly Cloudy
Humidity
98%
Feels like
28°F
Dew Point
33°F
11 PM
33°F
0%
8mph
W
Partly Cloudy
Humidity
97%
Feels like
26°F
Dew Point
32°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, Flooding Rain Impacts the Northwest

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