What is the weather in Irwin right now?

Current weather in Irwin is overcast clouds.

Where can I find the hourly weather forecast for Irwin?

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

Is the weather forecast for Irwin updated regularly?

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

Now · 4:24 AM

Irwin Weather & Hourly Forecast

United States · Idaho · 83428

49°F

Overcast night

Feels like: 46°F

💧 Humidity 94% 🌡 Pressure 29.97 inHg 💨 Wind 3 mph 👁 Visibility 18.6 mi ☁ Clouds 100% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Irwin

Today

5:00 AM

Overcast night

50° 💧 0.000 in 💨 4 mph H 92%30.00 inHg

8:00 AM

Mostly cloudy

48° 💧 0.001 in 💨 5 mph H 76%30.06 inHg

11:00 AM

Sunny

55° 💧 None 💨 8 mph H 41%30.06 inHg

2:00 PM

Sunny

60° 💧 None 💨 9 mph H 31%30.03 inHg

5:00 PM

Sunny

60° 💧 None 💨 8 mph H 29%30.03 inHg

8:00 PM

Clear night

50° 💧 None 💨 2 mph H 44%30.06 inHg

11:00 PM

Clear night

44° 💧 None 💨 3 mph H 62%30.12 inHg

Tomorrow

2:00 AM

Clear night

41° 💧 None 💨 3 mph H 73%30.12 inHg

5:00 AM

Clear night

39° 💧 None 💨 3 mph H 81%30.15 inHg

8:00 AM

Sunny

42° 💧 None 💨 3 mph H 82%30.18 inHg

11:00 AM

Sunny

60° 💧 None 💨 5 mph H 35%30.15 inHg

2:00 PM

Sunny

64° 💧 None 💨 8 mph H 30%30.15 inHg

5:00 PM

Sunny

64° 💧 None 💨 7 mph H 25%30.15 inHg

8:00 PM

Clear night

54° 💧 None 💨 1 mph H 38%30.18 inHg

11:00 PM

Clear night

44° 💧 None 💨 3 mph H 61%30.24 inHg

Wednesday

2:00 AM

Clear night

41° 💧 None 💨 3 mph H 70%30.30 inHg

Today

5:00 AM

Overcast night

50° 💧 None 💨 4 mph H 92%30.00 inHg

6:00 AM

Overcast night

49° 💧 None 💨 4 mph H 89%30.00 inHg

7:00 AM

Partly cloudy

49° 💧 0.000 in 💨 4 mph H 84%30.03 inHg

8:00 AM

Mostly cloudy

48° 💧 0.001 in 💨 5 mph H 76%30.06 inHg

9:00 AM

Mostly sunny

49° 💧 None 💨 5 mph H 64%30.09 inHg

10:00 AM

Sunny

52° 💧 None 💨 6 mph H 52%30.09 inHg

11:00 AM

Sunny

55° 💧 None 💨 8 mph H 41%30.06 inHg

12:00 PM

Sunny

57° 💧 None 💨 8 mph H 36%30.06 inHg

1:00 PM

Sunny

59° 💧 None 💨 8 mph H 33%30.06 inHg

2:00 PM

Sunny

60° 💧 None 💨 9 mph H 31%30.03 inHg

3:00 PM

Sunny

61° 💧 None 💨 8 mph H 30%30.03 inHg

4:00 PM

Sunny

61° 💧 None 💨 8 mph H 29%30.03 inHg

5:00 PM

Sunny

60° 💧 None 💨 8 mph H 29%30.03 inHg

6:00 PM

Sunny

59° 💧 None 💨 7 mph H 29%30.03 inHg

7:00 PM

Sunny

56° 💧 None 💨 5 mph H 33%30.06 inHg

8:00 PM

Clear night

50° 💧 None 💨 2 mph H 44%30.06 inHg

9:00 PM

Clear night

48° 💧 None 💨 2 mph H 49%30.09 inHg

10:00 PM

Clear night

46° 💧 None 💨 3 mph H 55%30.12 inHg

11:00 PM

Clear night

44° 💧 None 💨 3 mph H 62%30.12 inHg

Tomorrow

12:00 AM

Clear night

42° 💧 None 💨 3 mph H 67%30.12 inHg

1:00 AM

Clear night

41° 💧 None 💨 3 mph H 70%30.12 inHg

2:00 AM

Clear night

41° 💧 None 💨 3 mph H 73%30.12 inHg

3:00 AM

Clear night

40° 💧 None 💨 3 mph H 76%30.12 inHg

4:00 AM

Clear night

40° 💧 None 💨 3 mph H 78%30.15 inHg

5:00 AM

Clear night

39° 💧 None 💨 3 mph H 81%30.15 inHg

6:00 AM

Clear night

39° 💧 None 💨 3 mph H 84%30.15 inHg

7:00 AM

Sunny

38° 💧 None 💨 2 mph H 86%30.18 inHg

8:00 AM

Sunny

42° 💧 None 💨 3 mph H 82%30.18 inHg

9:00 AM

Sunny

51° 💧 None 💨 2 mph H 63%30.18 inHg

10:00 AM

Sunny

57° 💧 None 💨 2 mph H 42%30.18 inHg

11:00 AM

Sunny

60° 💧 None 💨 5 mph H 35%30.15 inHg

12:00 PM

Sunny

61° 💧 None 💨 7 mph H 34%30.15 inHg

1:00 PM

Sunny

63° 💧 None 💨 8 mph H 33%30.15 inHg

2:00 PM

Sunny

64° 💧 None 💨 8 mph H 30%30.15 inHg

3:00 PM

Sunny

64° 💧 None 💨 8 mph H 28%30.15 inHg

4:00 PM

Sunny

64° 💧 None 💨 8 mph H 26%30.15 inHg

5:00 PM

Sunny

64° 💧 None 💨 7 mph H 25%30.15 inHg

6:00 PM

Sunny

62° 💧 None 💨 7 mph H 24%30.15 inHg

7:00 PM

Sunny

58° 💧 None 💨 3 mph H 39%30.18 inHg

8:00 PM

Clear night

54° 💧 None 💨 1 mph H 38%30.18 inHg

9:00 PM

Clear night

50° 💧 None 💨 1 mph H 44%30.21 inHg

10:00 PM

Clear night

47° 💧 None 💨 3 mph H 54%30.24 inHg

11:00 PM

Clear night

44° 💧 None 💨 3 mph H 61%30.24 inHg

Wednesday

12:00 AM

Clear night

42° 💧 None 💨 3 mph H 67%30.27 inHg

1:00 AM

Clear night

41° 💧 None 💨 3 mph H 70%30.27 inHg

2:00 AM

Clear night

41° 💧 None 💨 3 mph H 70%30.30 inHg

3:00 AM

Clear night

41° 💧 None 💨 2 mph H 70%30.30 inHg

4:00 AM

Clear night

40° 💧 None 💨 3 mph H 71%30.30 inHg

5:00 AM

Mostly clear night

39° 💧 None 💨 3 mph H 73%30.30 inHg

6:00 AM

Partly cloudy night

39° 💧 None 💨 3 mph H 77%30.30 inHg

7:00 AM

Partly cloudy

38° 💧 None 💨 4 mph H 80%30.33 inHg

8:00 AM

Sunny

42° 💧 None 💨 4 mph H 75%30.33 inHg

9:00 AM

Sunny

51° 💧 None 💨 3 mph H 59%30.33 inHg

10:00 AM

Sunny

58° 💧 None 💨 2 mph H 40%30.33 inHg

11:00 AM

Sunny

63° 💧 None 💨 3 mph H 28%30.30 inHg

12:00 PM

Sunny

66° 💧 None 💨 3 mph H 22%30.27 inHg

1:00 PM

Sunny

69° 💧 None 💨 5 mph H 18%30.21 inHg

2:00 PM

Sunny

70° 💧 None 💨 6 mph H 18%30.18 inHg

3:00 PM

Sunny

70° 💧 None 💨 7 mph H 17%30.18 inHg

4:00 PM

Sunny

70° 💧 None 💨 7 mph H 16%30.15 inHg

5:00 PM

Sunny

69° 💧 None 💨 7 mph H 17%30.15 inHg

6:00 PM

Sunny

68° 💧 None 💨 4 mph H 20%30.15 inHg

9:00 PM

Clear night

51° 💧 None 💨 4 mph H 34%30.15 inHg

Thursday

12:00 AM

Clear night

48° 💧 None 💨 3 mph H 36%30.15 inHg

3:00 AM

Clear night

45° 💧 None 💨 3 mph H 48%30.15 inHg

6:00 AM

Clear night

44° 💧 None 💨 3 mph H 53%30.15 inHg

9:00 AM

Sunny

55° 💧 None 💨 4 mph H 48%30.15 inHg

12:00 PM

Sunny

68° 💧 None 💨 9 mph H 24%30.06 inHg

3:00 PM

Sunny

72° 💧 None 💨 12 mph H 19%29.94 inHg

6:00 PM

Mostly cloudy

70° 💧 None 💨 6 mph H 20%29.88 inHg

9:00 PM

Clear night

56° 💧 None 💨 4 mph H 33%29.85 inHg

Friday

12:00 AM

Mostly clear night

51° 💧 None 💨 4 mph H 42%29.85 inHg

3:00 AM

Clear night

48° 💧 None 💨 4 mph H 47%29.85 inHg

6:00 AM

Partly cloudy night

49° 💧 None 💨 3 mph H 49%29.85 inHg

9:00 AM

Overcast

56° 💧 None 💨 4 mph H 49%29.88 inHg

12:00 PM

Sunny

66° 💧 None 💨 13 mph H 32%29.85 inHg

3:00 PM

Sunny

69° 💧 None 💨 13 mph H 23%29.83 inHg

6:00 PM

Sunny

66° 💧 None 💨 9 mph H 23%29.83 inHg

9:00 PM

Clear night

53° 💧 None 💨 3 mph H 41%29.88 inHg

Saturday

12:00 AM

Clear night

47° 💧 None 💨 4 mph H 50%29.91 inHg

3:00 AM

Clear night

44° 💧 None 💨 5 mph H 51%29.91 inHg

6:00 AM

Clear night

43° 💧 None 💨 4 mph H 57%29.91 inHg

9:00 AM

Sunny

56° 💧 None 💨 4 mph H 40%29.88 inHg

12:00 PM

Partly cloudy

72° 💧 None 💨 10 mph H 24%29.77 inHg

3:00 PM

Partly cloudy

75° 💧 None 💨 13 mph H 20%29.71 inHg

6:00 PM

Mostly sunny

71° 💧 None 💨 5 mph H 26%29.68 inHg

Sunday

12:00 AM

Mostly cloudy night

54° 💧 None 💨 2 mph H 43%29.80 inHg

6:00 AM

Overcast night

47° 💧 None 💨 3 mph H 59%29.88 inHg

12:00 PM

Sunny

60° 💧 None 💨 8 mph H 24%29.91 inHg

6:00 PM

Sunny

57° 💧 None 💨 13 mph H 26%29.94 inHg

Monday

12:00 AM

Clear night

41° 💧 None 💨 4 mph H 43%30.09 inHg

6:00 AM

Clear night

35° 💧 None 💨 3 mph H 68%30.21 inHg

12:00 PM

Sunny

52° 💧 None 💨 3 mph H 41%30.24 inHg

6:00 PM

Sunny

58° 💧 None 💨 2 mph H 33%30.09 inHg

Tuesday

12:00 AM

Clear night

39° 💧 None 💨 2 mph H 69%30.12 inHg

6:00 AM

Clear night

34° 💧 None 💨 3 mph H 68%30.12 inHg

12:00 PM

Sunny

68° 💧 None 💨 5 mph H 19%30.06 inHg

6:00 PM

Sunny

70° 💧 None 💨 2 mph H 23%29.97 inHg

Wednesday

12:00 AM

Clear night

48° 💧 None 💨 3 mph H 49%30.03 inHg

6:00 AM

Clear night

46° 💧 None 💨 6 mph H 53%30.06 inHg

12:00 PM

Mostly sunny

74° 💧 None 💨 7 mph H 26%30.03 inHg

6:00 PM

Overcast

71° 💧 None 💨 1 mph H 45%29.97 inHg

Thursday

12:00 AM

Overcast night

54° 💧 None 💨 4 mph H 65%30.06 inHg

6:00 AM

Light rain

51° 💧 None 💨 2 mph H 96%30.21 inHg

12:00 PM

Mostly cloudy

63° 💧 None 💨 4 mph H 63%30.24 inHg

6:00 PM

Partly cloudy

67° 💧 None 💨 5 mph H 49%30.12 inHg

Friday

12:00 AM

Clear night

50° 💧 None 💨 3 mph H 88%30.21 inHg

6:00 AM

Mostly clear night

47° 💧 None 💨 4 mph H 92%30.24 inHg

12:00 PM

Mostly sunny

69° 💧 None 💨 3 mph H 48%30.21 inHg

6:00 PM

Mostly sunny

70° 💧 None 💨 3 mph H 40%30.06 inHg

Saturday

12:00 AM

Mostly clear night

52° 💧 None 💨 2 mph H 66%30.12 inHg

6:00 AM

Partly cloudy night

48° 💧 None 💨 4 mph H 76%30.09 inHg

12:00 PM

Mostly sunny

72° 💧 None 💨 4 mph H 39%30.06 inHg

6:00 PM

Overcast

65° 💧 None 💨 1 mph H 53%30.00 inHg

Sunday

12:00 AM

Mostly cloudy night

50° 💧 None 💨 3 mph H 85%30.06 inHg

6:00 AM

Clear night

48° 💧 None 💨 2 mph H 83%30.06 inHg

12:00 PM

Mostly sunny

67° 💧 None 💨 3 mph H 43%30.06 inHg

6:00 PM

Sunny

68° 💧 None 💨 3 mph H 36%30.00 inHg

Monday

12:00 AM

Clear night

49° 💧 None 💨 3 mph H 68%30.06 inHg

6:00 AM

Clear night

46° 💧 None 💨 4 mph H 87%30.12 inHg

12:00 PM

Partly cloudy

68° 💧 None 💨 7 mph H 40%30.03 inHg

6:00 PM

Mostly sunny

68° 💧 None 💨 7 mph H 38%29.91 inHg

In Irwin and, more broadly, across the state of Idaho: Tonight will be mostly cloudy with temperatures holding steady around 54 degrees. There’s no precipitation expected, so the evening should remain dry. Winds will be gentle from the south at up to 4 mph, with occasional gusts reaching 3 mph. The cool conditions will persist through the night, making for a relatively mild evening. It’s a good idea to keep an eye on the sky if you're planning any outdoor activities, but overall, conditions should remain calm and dry for the next few hours.

15-Day Weather Outlook for Irwin

TomorrowTomorrow

Sunny 64°/38° 💧 None 💨 8 mph

Wednesday, Sep 9Wed Sep 9

Mostly sunny 70°/38° 💧 None 💨 7 mph

Thursday, Sep 10Thu Sep 10

Sunny 72°/44° 💧 0.020 in 💨 12 mph

Friday, Sep 11Fri Sep 11

Mostly cloudy 70°/48° 💧 0.001 in 💨 13 mph

Saturday, Sep 12Sat Sep 12

Partly cloudy 75°/43° 💧 0.000 in 💨 13 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 71°/47° 💧 0.000 in 💨 8 mph

Monday, Sep 14Mon Sep 14

Sunny 57°/35° 💧 None 💨 13 mph

Tuesday, Sep 15Tue Sep 15

Sunny 68°/34° 💧 None 💨 5 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 74°/46° 💧 None 💨 7 mph

Thursday, Sep 17Thu Sep 17

Light rain 71°/51° 💧 0.137 in 💨 4 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 69°/47° 💧 0.011 in 💨 5 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 72°/48° 💧 0.001 in 💨 4 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 67°/48° 💧 0.039 in 💨 3 mph

Monday, Sep 21Mon Sep 21

Partly cloudy 68°/46° 💧 0.003 in 💨 7 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 68°/68° 💧 0.001 in 💨 7 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Irwin

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Irwin

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 5:00 AM

PM2.5 Fine particles Good 0,8µg/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 1,3µg/m³

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

O₃ Ozone Good 53,8µg/m³

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

NO₂ Nitrogen dioxide Good 1,3µg/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 Irwin

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 7,4High 😊Good

Tomorrow UV 7,0High 🙂Fair

Wednesday UV 6,9High 😐Moderate

Thursday UV 6,8High 🙂Fair

Friday UV 6,0High 😊Good

Saturday UV 4,0Moderate —Unavailable

Sunday UV 6,0High —Unavailable

Hourly UV index today

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

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 Irwin

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · IRWIN, IDAHO

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

23/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 100% Real hourly forecast for the best viewing hour.

☾ Moonlight 20% Waning Crescent · Moon about 22° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 83° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

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

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

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% 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.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Irwin were last refreshed today at 4:24 AM. The current forecast period extends through 09/09/2026 at 2:00 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.