Arco, ID Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Arco, ID in one place.
Sunny, with a high near 57. East wind 3 to 9 mph.
Local Weather Overview
This forecast page for Arco, ID is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 15, 2026 6:41 AM MDT.
The active forecast window currently covers Oct 16 to Oct 21, 2026 for Arco, ID.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 16 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 6:41 AM MDT
- Forecast office
- PIH
- Source
- NOAA / NWS
Daily Outlook
This Week in Arco
Saturday looks like the warmest upcoming period in Arco at 58 degrees F.
Friday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Saturday at about 3 to 12 mph WSW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 6:41 AM MDT
- Coverage
- 6 days
- Time zone
- America/Boise
- Forecast office
- PIH
- Radar station
- KSFX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 34. West northwest wind around 6 mph.
Sunny, with a high near 58.
Partly cloudy, with a low around 36.
Sunny, with a high near 58.
Mostly clear, with a low around 37.
Sunny, with a high near 57.
Partly cloudy, with a low around 39.
A chance of rain. Partly sunny, with a high near 54. Chance of precipitation is 30%.
A chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
A chance of rain. Partly sunny, with a high near 53. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Oct 16
|
Sunny
|
57°F |
3 to 9 mph
E
|
|
Friday Night
Oct 16
|
Mostly Clear
|
34°F |
6 mph
WNW
|
|
Saturday
Oct 17
|
Sunny
|
58°F |
3 to 12 mph
WSW
|
|
Saturday Night
Oct 17
|
Partly Cloudy
|
36°F |
3 to 9 mph
W
|
|
Sunday
Oct 18
|
Sunny
|
58°F |
2 to 10 mph
W
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
37°F |
3 to 8 mph
W
|
|
Monday
Oct 19
|
Sunny
|
57°F |
3 to 10 mph
ENE
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
39°F |
7 mph
SW
|
|
Tuesday
Oct 20
|
Chance Light Rain
|
54°F |
3 to 7 mph
E
|
|
Tuesday Night
Oct 20
|
Chance Light Rain
|
38°F |
3 to 7 mph
WNW
|
|
Wednesday
Oct 21
|
Chance Light Rain
|
53°F |
3 to 7 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Arco.
Nearby forecast pages are not available for this location yet.
