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Current weather in Challis is few clouds.

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This page shows hourly weather forecast for Challis, including temperature, wind, precipitation, humidity and cloud cover.

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Weather data for Challis is updated regularly with the latest available observations and forecasts.

Now · 8:57 AM

Challis Weather & Hourly Forecast

United States · Idaho · 83226

50°F

Mostly sunny

Feels like: 48°F

💧 Humidity 79% 🌡 Pressure 30.06 inHg 💨 Wind 1 mph 👁 Visibility 16.5 mi ☁ Clouds 25% ☀️ UV index 0.2 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Challis

Today

9:00 AM

Mostly sunny

50° 💧 None 💨 1 mph H 79%30.06 inHg

12:00 PM

Mostly sunny

59° 💧 0.01 in 💨 3 mph H 58%30.00 inHg

3:00 PM

Light rain

66° 💧 0.02 in 💨 3 mph H 47%29.91 inHg

6:00 PM

Mostly sunny

68° 💧 0.00 in 💨 7 mph H 34%29.85 inHg

9:00 PM

Clear night

60° 💧 None 💨 2 mph H 49%29.88 inHg

Tomorrow

12:00 AM

Mostly cloudy night

52° 💧 0.00 in 💨 4 mph H 70%29.94 inHg

3:00 AM

Mostly cloudy night

50° 💧 0.00 in 💨 2 mph H 81%29.97 inHg

6:00 AM

Mostly clear night

45° 💧 None 💨 2 mph H 86%30.00 inHg

9:00 AM

Mostly cloudy

52° 💧 None 💨 2 mph H 70%30.00 inHg

12:00 PM

Partly cloudy

61° 💧 0.00 in 💨 3 mph H 48%29.94 inHg

3:00 PM

Mostly sunny

65° 💧 0.01 in 💨 2 mph H 44%29.83 inHg

6:00 PM

Partly cloudy

65° 💧 0.00 in 💨 4 mph H 43%29.80 inHg

9:00 PM

Clear night

56° 💧 None 💨 3 mph H 67%29.83 inHg

Monday

12:00 AM

Mostly cloudy night

51° 💧 0.01 in 💨 3 mph H 80%29.83 inHg

3:00 AM

Light rain

49° 💧 0.15 in 💨 4 mph H 85%29.85 inHg

6:00 AM

Light rain

48° 💧 0.03 in 💨 1 mph H 86%29.88 inHg

Today

9:00 AM

Mostly sunny

50° 💧 None 💨 1 mph H 79%30.06 inHg

10:00 AM

Mostly sunny

53° 💧 None 💨 2 mph H 72%30.03 inHg

11:00 AM

Mostly sunny

56° 💧 None 💨 3 mph H 65%30.03 inHg

12:00 PM

Mostly sunny

59° 💧 None 💨 3 mph H 58%30.00 inHg

1:00 PM

Mostly sunny

61° 💧 0.00 in 💨 2 mph H 54%29.97 inHg

2:00 PM

Light rain

64° 💧 0.00 in 💨 3 mph H 51%29.94 inHg

3:00 PM

Light rain

66° 💧 0.01 in 💨 3 mph H 47%29.91 inHg

4:00 PM

Light rain

68° 💧 0.01 in 💨 7 mph H 35%29.85 inHg

5:00 PM

Sunny

68° 💧 0.00 in 💨 8 mph H 34%29.85 inHg

6:00 PM

Mostly sunny

68° 💧 0.00 in 💨 7 mph H 34%29.85 inHg

7:00 PM

Sunny

66° 💧 0.00 in 💨 5 mph H 38%29.85 inHg

8:00 PM

Sunny

61° 💧 None 💨 4 mph H 48%29.85 inHg

9:00 PM

Clear night

60° 💧 None 💨 2 mph H 49%29.88 inHg

10:00 PM

Partly cloudy night

56° 💧 None 💨 1 mph H 55%29.88 inHg

11:00 PM

Mostly cloudy night

54° 💧 None 💨 3 mph H 63%29.91 inHg

Tomorrow

12:00 AM

Mostly cloudy night

52° 💧 0.00 in 💨 4 mph H 70%29.94 inHg

1:00 AM

Mostly cloudy night

51° 💧 0.00 in 💨 2 mph H 77%29.94 inHg

2:00 AM

Overcast night

50° 💧 0.00 in 💨 2 mph H 80%29.94 inHg

3:00 AM

Mostly cloudy night

50° 💧 0.00 in 💨 2 mph H 81%29.97 inHg

4:00 AM

Partly cloudy night

48° 💧 None 💨 2 mph H 82%29.97 inHg

5:00 AM

Mostly clear night

47° 💧 None 💨 2 mph H 84%30.00 inHg

6:00 AM

Mostly clear night

45° 💧 None 💨 2 mph H 86%30.00 inHg

7:00 AM

Partly cloudy night

44° 💧 None 💨 2 mph H 88%30.00 inHg

8:00 AM

Partly cloudy

46° 💧 None 💨 3 mph H 83%30.00 inHg

9:00 AM

Mostly cloudy

52° 💧 None 💨 2 mph H 70%30.00 inHg

10:00 AM

Mostly cloudy

56° 💧 None 💨 0 mph H 58%30.00 inHg

11:00 AM

Partly cloudy

58° 💧 None 💨 2 mph H 54%29.97 inHg

12:00 PM

Partly cloudy

61° 💧 None 💨 3 mph H 48%29.94 inHg

1:00 PM

Partly cloudy

63° 💧 None 💨 3 mph H 44%29.88 inHg

2:00 PM

Partly cloudy

65° 💧 0.00 in 💨 3 mph H 43%29.85 inHg

3:00 PM

Mostly sunny

65° 💧 0.00 in 💨 2 mph H 44%29.83 inHg

4:00 PM

Partly cloudy

66° 💧 0.00 in 💨 3 mph H 43%29.80 inHg

5:00 PM

Light thunderstorms

66° 💧 0.00 in 💨 4 mph H 42%29.80 inHg

6:00 PM

Partly cloudy

65° 💧 0.00 in 💨 4 mph H 43%29.80 inHg

7:00 PM

Mostly sunny

64° 💧 0.00 in 💨 3 mph H 46%29.80 inHg

8:00 PM

Sunny

59° 💧 None 💨 3 mph H 60%29.83 inHg

9:00 PM

Clear night

56° 💧 None 💨 3 mph H 67%29.83 inHg

10:00 PM

Mostly cloudy night

53° 💧 None 💨 2 mph H 72%29.85 inHg

11:00 PM

Mostly cloudy night

52° 💧 None 💨 2 mph H 75%29.83 inHg

Monday

12:00 AM

Mostly cloudy night

51° 💧 0.00 in 💨 3 mph H 80%29.83 inHg

1:00 AM

Mostly cloudy night

50° 💧 0.00 in 💨 1 mph H 83%29.83 inHg

2:00 AM

Overcast night

49° 💧 0.00 in 💨 2 mph H 85%29.83 inHg

3:00 AM

Light rain

49° 💧 0.02 in 💨 4 mph H 85%29.85 inHg

4:00 AM

Light rain

48° 💧 0.06 in 💨 3 mph H 87%29.88 inHg

5:00 AM

Light rain

48° 💧 0.06 in 💨 2 mph H 86%29.91 inHg

6:00 AM

Light rain

48° 💧 0.01 in 💨 1 mph H 86%29.88 inHg

7:00 AM

Mostly cloudy night

47° 💧 0.00 in 💨 2 mph H 88%29.88 inHg

8:00 AM

Light rain

46° 💧 0.01 in 💨 5 mph H 86%29.94 inHg

9:00 AM

Mostly sunny

48° 💧 0.00 in 💨 7 mph H 75%29.97 inHg

10:00 AM

Partly cloudy

51° 💧 0.00 in 💨 9 mph H 62%29.97 inHg

11:00 AM

Mostly sunny

52° 💧 0.00 in 💨 9 mph H 53%29.97 inHg

12:00 PM

Partly cloudy

55° 💧 0.00 in 💨 10 mph H 44%29.97 inHg

1:00 PM

Partly cloudy

56° 💧 0.00 in 💨 10 mph H 42%29.97 inHg

2:00 PM

Partly cloudy

57° 💧 0.00 in 💨 11 mph H 42%29.97 inHg

3:00 PM

Mostly sunny

58° 💧 0.00 in 💨 10 mph H 39%29.97 inHg

4:00 PM

Partly cloudy

59° 💧 0.00 in 💨 9 mph H 37%29.97 inHg

5:00 PM

Mostly sunny

59° 💧 0.00 in 💨 9 mph H 37%29.97 inHg

6:00 PM

Partly cloudy

58° 💧 None 💨 8 mph H 37%29.97 inHg

Tuesday

3:00 AM

Mostly clear night

37° 💧 None 💨 3 mph H 89%30.15 inHg

6:00 AM

Mostly clear night

34° 💧 None 💨 3 mph H 91%30.21 inHg

9:00 AM

Sunny

44° 💧 None 💨 2 mph H 69%30.27 inHg

12:00 PM

Sunny

54° 💧 None 💨 5 mph H 54%30.27 inHg

3:00 PM

Sunny

59° 💧 None 💨 5 mph H 41%30.21 inHg

6:00 PM

Sunny

61° 💧 None 💨 3 mph H 35%30.18 inHg

9:00 PM

Clear night

53° 💧 None 💨 1 mph H 55%30.21 inHg

Wednesday

12:00 AM

Mostly clear night

49° 💧 None 💨 1 mph H 59%30.27 inHg

3:00 AM

Clear night

45° 💧 None 💨 2 mph H 63%30.30 inHg

6:00 AM

Clear night

43° 💧 None 💨 2 mph H 65%30.33 inHg

9:00 AM

Sunny

50° 💧 None 💨 2 mph H 54%30.36 inHg

12:00 PM

Sunny

61° 💧 None 💨 4 mph H 41%30.30 inHg

3:00 PM

Sunny

70° 💧 None 💨 5 mph H 26%30.18 inHg

6:00 PM

Sunny

71° 💧 None 💨 1 mph H 23%30.09 inHg

9:00 PM

Clear night

55° 💧 None 💨 3 mph H 50%30.12 inHg

Thursday

12:00 AM

Mostly clear night

45° 💧 None 💨 4 mph H 76%30.15 inHg

3:00 AM

Partly cloudy night

43° 💧 None 💨 4 mph H 74%30.15 inHg

6:00 AM

Mostly cloudy night

42° 💧 None 💨 3 mph H 73%30.15 inHg

9:00 AM

Mostly sunny

52° 💧 None 💨 3 mph H 60%30.15 inHg

12:00 PM

Partly cloudy

67° 💧 None 💨 4 mph H 33%30.06 inHg

3:00 PM

Mostly sunny

74° 💧 None 💨 11 mph H 25%29.94 inHg

6:00 PM

Sunny

72° 💧 None 💨 9 mph H 27%29.88 inHg

9:00 PM

Clear night

59° 💧 None 💨 5 mph H 45%29.91 inHg

Friday

12:00 AM

Partly cloudy night

52° 💧 None 💨 4 mph H 64%29.91 inHg

6:00 AM

Clear night

53° 💧 None 💨 4 mph H 68%30.03 inHg

12:00 PM

Mostly sunny

47° 💧 None 💨 3 mph H 78%30.03 inHg

6:00 PM

Mostly sunny

71° 💧 None 💨 9 mph H 33%29.91 inHg

Saturday

12:00 AM

Mostly clear night

70° 💧 None 💨 12 mph H 28%29.83 inHg

6:00 AM

Mostly clear night

54° 💧 None 💨 3 mph H 69%29.97 inHg

12:00 PM

Overcast

41° 💧 None 💨 2 mph H 98%30.12 inHg

6:00 PM

Sunny

57° 💧 None 💨 3 mph H 46%30.12 inHg

Sunday

12:00 AM

Mostly clear night

68° 💧 None 💨 5 mph H 30%29.94 inHg

6:00 AM

Clear night

47° 💧 None 💨 2 mph H 65%30.03 inHg

12:00 PM

Sunny

45° 💧 None 💨 2 mph H 52%30.09 inHg

6:00 PM

Mostly sunny

64° 💧 None 💨 4 mph H 26%30.06 inHg

Monday

12:00 AM

Mostly clear night

75° 💧 None 💨 4 mph H 15%29.91 inHg

6:00 AM

Mostly clear night

50° 💧 None 💨 4 mph H 57%30.00 inHg

12:00 PM

Mostly cloudy

51° 💧 None 💨 1 mph H 41%30.06 inHg

6:00 PM

Mostly cloudy

69° 💧 None 💨 2 mph H 23%30.03 inHg

Tuesday

12:00 AM

Mostly cloudy night

74° 💧 None 💨 3 mph H 35%29.91 inHg

6:00 AM

Partly cloudy night

57° 💧 None 💨 3 mph H 64%29.94 inHg

12:00 PM

Partly cloudy

54° 💧 None 💨 2 mph H 61%29.97 inHg

6:00 PM

Light rain

73° 💧 None 💨 2 mph H 35%29.97 inHg

Wednesday

12:00 AM

Mostly clear night

76° 💧 None 💨 6 mph H 24%29.85 inHg

6:00 AM

Clear night

49° 💧 None 💨 5 mph H 59%30.03 inHg

12:00 PM

Sunny

46° 💧 None 💨 3 mph H 53%30.12 inHg

6:00 PM

Sunny

69° 💧 None 💨 4 mph H 27%30.15 inHg

Thursday

12:00 AM

Clear night

76° 💧 None 💨 5 mph H 13%30.03 inHg

6:00 AM

Clear night

50° 💧 None 💨 4 mph H 54%30.15 inHg

12:00 PM

Sunny

48° 💧 None 💨 2 mph H 45%30.24 inHg

6:00 PM

Sunny

68° 💧 None 💨 3 mph H 22%30.24 inHg

Friday

12:00 AM

Partly cloudy night

80° 💧 None 💨 3 mph H 13%30.00 inHg

6:00 AM

Clear night

61° 💧 None 💨 1 mph H 38%30.09 inHg

12:00 PM

Mostly sunny

57° 💧 None 💨 1 mph H 43%30.09 inHg

6:00 PM

Mostly sunny

73° 💧 None 💨 3 mph H 24%30.09 inHg

Saturday

12:00 AM

Light rain

73° 💧 None 💨 12 mph H 35%30.03 inHg

6:00 AM

Clear night

61° 💧 None 💨 1 mph H 54%30.12 inHg

12:00 PM

Overcast

56° 💧 None 💨 1 mph H 60%30.15 inHg

6:00 PM

Overcast

70° 💧 None 💨 3 mph H 39%30.09 inHg

Sunday

12:00 AM

Light rain

68° 💧 None 💨 8 mph H 61%30.00 inHg

In Challis and, more broadly, across the state of Idaho: The morning starts with a mix of sun and clouds, bringing mild temperatures around 40 to 50 degrees Fahrenheit. Winds are light from the south at up to 6 mph, with occasional gusts reaching 17 mph. As the day progresses, clouds will increase, and there is a high possibility of rain, with total accumulation reaching about 0.15 inches. Temperatures will climb to highs around 65 to 69 degrees Fahrenheit in the afternoon. Be prepared for the possibility of rain and gusty breezes as the day continues.

15-Day Weather Outlook for Challis

TomorrowTomorrow

Light thunderstorms 68°/44° 💧 None 💨 7 mph

Monday, Sep 7Mon Sep 7

Partly cloudy 65°/46° 💧 None 💨 11 mph

Tuesday, Sep 8Tue Sep 8

Partly cloudy 59°/34° 💧 0.48 in 💨 8 mph

Wednesday, Sep 9Wed Sep 9

Mostly sunny 70°/43° 💧 None 💨 5 mph

Thursday, Sep 10Thu Sep 10

Mostly sunny 74°/42° 💧 0.00 in 💨 11 mph

Friday, Sep 11Fri Sep 11

Partly cloudy 72°/47° 💧 0.00 in 💨 9 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 71°/41° 💧 0.01 in 💨 12 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 68°/45° 💧 None 💨 5 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 75°/50° 💧 None 💨 4 mph

Tuesday, Sep 15Tue Sep 15

Mostly cloudy 74°/54° 💧 0.01 in 💨 3 mph

Wednesday, Sep 16Wed Sep 16

Light rain 76°/46° 💧 0.05 in 💨 6 mph

Thursday, Sep 17Thu Sep 17

Sunny 76°/48° 💧 None 💨 5 mph

Friday, Sep 18Fri Sep 18

Partly cloudy 80°/57° 💧 None 💨 3 mph

Saturday, Sep 19Sat Sep 19

Light rain 73°/56° 💧 0.02 in 💨 12 mph

Sunday, Sep 20Sun Sep 20

Light rain 70°/68° 💧 0.03 in 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Challis

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Challis

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 9:00 AM

PM2.5 Fine particles Good 0,5µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 1,0µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 33,2µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 2,9µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Challis

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 6,5High 😊Good

Tomorrow UV 6,7High 🙂Fair

Monday UV 5,7Moderate 🙂Fair

Tuesday UV 6,6High 🙂Fair

Wednesday UV 5,0Moderate 🙂Fair

Thursday UV 5,0Moderate —Unavailable

Friday UV 5,0Moderate —Unavailable

Hourly UV index today

9:00 AMUV 0,8 10:00 AMUV 2,3 11:00 AMUV 4,1 12:00 PMUV 5,9 1:00 PMUV 6,0 2:00 PMUV 6,5 3:00 PMUV 3,7 4:00 PMUV 1,6 5:00 PMUV 2,2 6:00 PMUV 0,9 7:00 PMUV 0,3

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Challis

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · CHALLIS, IDAHO

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

81/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 9:48 PM–5:23 AM

☁ Cloud cover 23% Real hourly forecast for the best viewing hour.

☾ Moonlight 29% Waning Crescent · Moon about 33° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 80° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min67%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

AUG 28–SEP 5

AurigidsStart AUG 28 · Peak SEP 1 · End SEP 5 · ZHR 6 · 80% Moon at peak

ACTIVE NOW

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Challis were last refreshed today at 8:57 AM. The current forecast period extends through 07/09/2026 at 6:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.