Hourly Weather Forecast - Arco, ID

12 AM
31°F
0%
6mph
W
Partly Cloudy
Humidity
84%
Feels like
25°F
Dew Point
27°F
1 AM
31°F
0%
6mph
W
Partly Cloudy
Humidity
84%
Feels like
25°F
Dew Point
26°F
2 AM
30°F
0%
5mph
W
Partly Cloudy
Humidity
85%
Feels like
24°F
Dew Point
26°F
3 AM
29°F
0%
5mph
W
Partly Cloudy
Humidity
87%
Feels like
24°F
Dew Point
26°F
4 AM
29°F
0%
5mph
W
Partly Cloudy
Humidity
91%
Feels like
23°F
Dew Point
26°F
5 AM
28°F
0%
5mph
W
Partly Cloudy
Humidity
92%
Feels like
22°F
Dew Point
26°F
6 AM
27°F
0%
4mph
W
Partly Cloudy
Humidity
91%
Feels like
22°F
Dew Point
25°F
7 AM
28°F
0%
4mph
W
Partly Cloudy
Humidity
88%
Feels like
23°F
Dew Point
25°F
7:57 AM
8 AM
31°F
0%
4mph
W
Mostly Cloudy
Humidity
84%
Feels like
26°F
Dew Point
26°F
9 AM
35°F
0%
4mph
W
Mostly Cloudy
Humidity
83%
Feels like
32°F
Dew Point
31°F
10 AM
40°F
0%
4mph
WSW
Partly Cloudy
Humidity
74%
Feels like
37°F
Dew Point
32°F
11 AM
44°F
0%
5mph
SW
Partly Cloudy
Humidity
67%
Feels like
41°F
Dew Point
33°F
12 PM
46°F
0%
7mph
SW
Partly Cloudy
Humidity
64%
Feels like
43°F
Dew Point
35°F
1 PM
48°F
0%
9mph
SW
Partly Cloudy
Humidity
62%
Feels like
44°F
Dew Point
35°F
2 PM
48°F
0%
10mph
SW
Partly Cloudy
Humidity
61%
Feels like
44°F
Dew Point
35°F
3 PM
47°F
0%
10mph
SW
Partly Cloudy
Humidity
64%
Feels like
42°F
Dew Point
35°F
4 PM
44°F
0%
10mph
SW
Partly Cloudy
Humidity
69%
Feels like
39°F
Dew Point
35°F
4:56 PM
5 PM
41°F
0%
9mph
SW
Mostly Clear
Humidity
71%
Feels like
35°F
Dew Point
33°F
6 PM
38°F
0%
9mph
SW
Mostly Clear
Humidity
74%
Feels like
32°F
Dew Point
31°F
7 PM
36°F
0%
8mph
WSW
Mostly Clear
Humidity
76%
Feels like
29°F
Dew Point
29°F
8 PM
33°F
0%
8mph
WSW
Partly Cloudy
Humidity
79%
Feels like
27°F
Dew Point
28°F
9 PM
32°F
0%
7mph
WSW
Partly Cloudy
Humidity
81%
Feels like
25°F
Dew Point
27°F
10 PM
31°F
0%
7mph
WSW
Partly Cloudy
Humidity
85%
Feels like
24°F
Dew Point
27°F
11 PM
30°F
0%
7mph
WSW
Partly Cloudy
Humidity
85%
Feels like
24°F
Dew Point
26°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