Arco, Idaho 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 81°F 27°C Heat Index: 80°F	Observed at: Arco, ID	Elevation: 5318 ft | 1621 m
	Last Updated: July 16, 9:15 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 81°F | 27°C
	Pressure: 24.7 in | 836.6 mb	Dewpoint: 48°F | 9°C
	Humidity: 32%	Wind: NE 12 mph | NE 19 kph
	Feels Like: 75°F | 24°C	Visibility: 117 mi | 188.3 km
	Lat/Long: 43.6377 | -113.2988	Sunrise: 6:06 AM   Sunset: 9:11 PM

7 Day Graphical Forecast

Valid: 9:28 PM 7/16/2026

Tonight Overcast 65 °F 20% Chance Precipitation Friday Overcast 91 |69 °F 25% Chance Precipitation Saturday Overcast 94 |66 °F 13% Chance Precipitation Sunday Overcast 96 |70 °F 8% Chance Precipitation Monday Overcast 96 |74 °F 24% Chance Precipitation Tuesday Drizzle 92 |69 °F 45% Chance Precipitation Wednesday Drizzle 82 |67 °F 49% Chance Precipitation

7 Hour Graphical Forecast

Valid: 9:28 PM 7/16/2026

9 PM Clear 82 °F 18% Chance Precipitation

10 PM Clear 79 °F 14% Chance Precipitation

11 PM Overcast 77 °F 14% Chance Precipitation

12 AM Overcast 76 °F 17% Chance Precipitation

1 AM Overcast 74 °F 12% Chance Precipitation

2 AM Overcast 72 °F 7% Chance Precipitation

3 AM Overcast 70 °F 4% Chance Precipitation

7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall & UV Index

7 Day & Night Weather Forecast for Arco, ID - (Fahrenheit & Celsius) Valid: 9:28 PM 7/16/2026 Tonight Overcast with a low around 65°F [18°C]. S wind to around 16 mph [25 kph], with gusts to near 17 mph [28 kph]. Chance of precipitation 20% with QPF of 0.00 in [0.0 mm]. Friday Overcast with a high near 91°F [33°C]. E wind to around 23 mph [37 kph], with gusts to near 32 mph [52 kph]. Dewpoint near 48°F [9°C] with humidity of 57%. Pressure around 24.70 in [836.6 mb]. UV Index: 7.4. Chance of precipitation 25% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 69°F [20°C]. E wind to around 23 mph [37 kph], with gusts to near 32 mph [52 kph]. Chance of precipitation 25% with QPF of 0.00 in [0.0 mm]. Saturday Overcast with a high near 94°F [34°C]. NNW wind to around 21 mph [34 kph], with gusts to near 22 mph [35 kph]. Dewpoint near 48°F [9°C] with humidity of 63%. Pressure around 24.70 in [836.6 mb]. UV Index: 8.2. Chance of precipitation 13% with QPF of 0.00 in [0.0 mm]. Saturday Night Overcast with a low around 66°F [19°C]. NNW wind to around 21 mph [34 kph], with gusts to near 22 mph [35 kph]. Chance of precipitation 13% with QPF of 0.00 in [0.0 mm]. Sunday Overcast with a high near 96°F [36°C]. WSW wind to around 15 mph [24 kph], with gusts to near 19 mph [30 kph]. Dewpoint near 48°F [9°C] with humidity of 46%. Pressure around 24.70 in [836.6 mb]. UV Index: 8.45. Chance of precipitation 8% with QPF of 0.00 in [0.0 mm]. Sunday Night Overcast with a low around 70°F [21°C]. WSW wind to around 15 mph [24 kph], with gusts to near 19 mph [30 kph]. Chance of precipitation 8% with QPF of 0.00 in [0.0 mm]. Monday Overcast with a high near 96°F [36°C]. NNE wind to around 12 mph [19 kph], with gusts to near 17 mph [27 kph]. Dewpoint near 48°F [9°C] with humidity of 28%. Pressure around 24.70 in [836.6 mb]. UV Index: 8.45. Chance of precipitation 24% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 74°F [23°C]. NNE wind to around 12 mph [19 kph], with gusts to near 17 mph [27 kph]. Chance of precipitation 24% with QPF of 0.00 in [0.0 mm]. Tuesday Drizzle with a high near 92°F [34°C]. NNE wind to around 15 mph [25 kph], with gusts to near 20 mph [32 kph]. Dewpoint near 48°F [9°C] with humidity of 69%. Pressure around 24.70 in [836.6 mb]. UV Index: 7.65. Chance of precipitation 45% with QPF of 0.04 in [1.0 mm]. Tuesday Night Drizzle with a low around 69°F [21°C]. NNE wind to around 15 mph [25 kph], with gusts to near 20 mph [32 kph]. Chance of precipitation 45% with QPF of 0.04 in [1.0 mm]. Wednesday Drizzle with a high near 82°F [28°C]. N wind to around 11 mph [18 kph], with gusts to near 7 mph [11 kph]. Dewpoint near 48°F [9°C] with humidity of 79%. Pressure around 24.70 in [836.6 mb]. UV Index: 6.45. Chance of precipitation 49% with QPF of 0.20 in [5.1 mm]. Wednesday Night Drizzle with a low around 67°F [20°C]. N wind to around 11 mph [18 kph], with gusts to near 7 mph [11 kph]. Chance of precipitation 49% with QPF of 0.20 in [5.1 mm].

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7 Day and Night - QPF Forecast for Arco, ID

Tonight: 0.0 mm | 0.00 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

Saturday: 0.0 mm | 0.00 in

Saturday Night: 0.0 mm | 0.00 in

Sunday: 0.0 mm | 0.00 in

Sunday Night: 0.0 mm | 0.00 in

Monday: 0.0 mm | 0.00 in

Monday Night: 0.0 mm | 0.00 in

Tuesday: 1.0 mm | 0.04 in

Tuesday Night: 1.0 mm | 0.04 in

Wednesday: 5.1 mm | 0.20 in

Wednesday Night: 5.1 mm | 0.20 in

7 Day and Night - Maximum Wind Speed Forecast for Arco, ID

Tonight: S @ 25 kph | 16 mph

Friday: E @ 37 kph | 23 mph

Friday Night: E @ 37 kph | 23 mph

Saturday: NNW @ 34 kph | 21 mph

Saturday Night: NNW @ 34 kph | 21 mph

Sunday: WSW @ 24 kph | 15 mph

Sunday Night: WSW @ 24 kph | 15 mph

Monday: NNE @ 19 kph | 12 mph

Monday Night: NNE @ 19 kph | 12 mph

Tuesday: NNE @ 25 kph | 15 mph

Tuesday Night: NNE @ 25 kph | 15 mph

Wednesday: N @ 18 kph | 11 mph

Wednesday Night: N @ 18 kph | 11 mph

7 Day and Night - Maximum Humidity Forecast for Arco, ID

Tonight: 53 %

Friday: 57 %

Friday Night: 57 %

Saturday: 63 %

Saturday Night: 63 %

Sunday: 46 %

Sunday Night: 46 %

Monday: 28 %

Monday Night: 28 %

Tuesday: 69 %

Tuesday Night: 69 %

Wednesday: 79 %

Wednesday Night: 79 %

7 Day and Night - Snowfall Totals Forecast for Arco, ID

Tonight: 0.0 cm | 0.00 in

Friday: 0.0 cm | 0.00 in

Friday Night: 0.0 cm | 0.00 in

Saturday: 0.0 cm | 0.00 in

Saturday Night: 0.0 cm | 0.00 in

Sunday: 0.0 cm | 0.00 in

Sunday Night: 0.0 cm | 0.00 in

Monday: 0.0 cm | 0.00 in

Monday Night: 0.0 cm | 0.00 in

Tuesday: 0.0 cm | 0.00 in

Tuesday Night: 0.0 cm | 0.00 in

Wednesday: 0.0 cm | 0.00 in

Wednesday Night: 0.0 cm | 0.00 in

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