Hourly Weather Forecast - Arco, ID

12 AM
33°F
0%
9mph
W
Mostly Clear
Humidity
87%
Feels like
25°F
Dew Point
29°F
1 AM
31°F
0%
9mph
W
Mostly Clear
Humidity
87%
Feels like
24°F
Dew Point
28°F
2 AM
30°F
0%
9mph
W
Partly Cloudy
Humidity
87%
Feels like
22°F
Dew Point
27°F
3 AM
29°F
0%
8mph
W
Mostly Clear
Humidity
87%
Feels like
22°F
Dew Point
26°F
4 AM
29°F
0%
7mph
W
Mostly Clear
Humidity
89%
Feels like
21°F
Dew Point
26°F
5 AM
28°F
0%
7mph
W
Mostly Clear
Humidity
86%
Feels like
20°F
Dew Point
24°F
6 AM
28°F
0%
7mph
W
Mostly Clear
Humidity
86%
Feels like
20°F
Dew Point
24°F
7 AM
28°F
0%
6mph
W
Mostly Clear
Humidity
80%
Feels like
21°F
Dew Point
23°F
7:56 AM
8 AM
31°F
0%
6mph
W
Mostly Sunny
Humidity
74%
Feels like
25°F
Dew Point
24°F
9 AM
36°F
0%
6mph
W
Mostly Sunny
Humidity
70%
Feels like
30°F
Dew Point
27°F
10 AM
40°F
0%
7mph
WSW
Sunny
Humidity
63%
Feels like
36°F
Dew Point
29°F
11 AM
44°F
0%
8mph
WSW
Mostly Sunny
Humidity
54%
Feels like
40°F
Dew Point
29°F
12 PM
47°F
0%
9mph
SW
Mostly Sunny
Humidity
51%
Feels like
42°F
Dew Point
30°F
1 PM
49°F
0%
11mph
SW
Partly Cloudy
Humidity
50%
Feels like
44°F
Dew Point
31°F
2 PM
49°F
0%
12mph
WSW
Partly Cloudy
Humidity
49%
Feels like
45°F
Dew Point
31°F
3 PM
48°F
0%
12mph
WSW
Partly Cloudy
Humidity
53%
Feels like
43°F
Dew Point
31°F
4 PM
45°F
0%
11mph
WSW
Partly Cloudy
Humidity
57%
Feels like
40°F
Dew Point
31°F
4:56 PM
5 PM
42°F
0%
9mph
WSW
Mostly Clear
Humidity
63%
Feels like
36°F
Dew Point
30°F
6 PM
39°F
0%
9mph
WSW
Partly Cloudy
Humidity
68%
Feels like
33°F
Dew Point
29°F
7 PM
37°F
0%
8mph
W
Partly Cloudy
Humidity
71%
Feels like
31°F
Dew Point
28°F
8 PM
35°F
0%
8mph
W
Partly Cloudy
Humidity
74%
Feels like
28°F
Dew Point
27°F
9 PM
33°F
0%
8mph
W
Partly Cloudy
Humidity
74%
Feels like
27°F
Dew Point
26°F
10 PM
33°F
0%
7mph
W
Partly Cloudy
Humidity
79%
Feels like
26°F
Dew Point
27°F
11 PM
32°F
0%
7mph
W
Partly Cloudy
Humidity
79%
Feels like
26°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