Feels like81°FWind direction northeastGusts —Humidity 65%Cloud cover 98%Pressure 30.21 inHg
Thursday
Overcast night
78°💧 None💨 7 mphH 78%30.15 inHg
Feels like82°FWind direction northeastGusts —Humidity 78%Cloud cover 100%Pressure 30.15 inHg
Mostly sunny
75°💧 None💨 7 mphH 92%30.12 inHg
Feels like81°FWind direction southGusts —Humidity 92%Cloud cover 29%Pressure 30.12 inHg
Sunny
75°💧 None💨 9 mphH 86%30.12 inHg
Feels like79°FWind direction southGusts —Humidity 86%Cloud cover 2%Pressure 30.12 inHg
Mostly cloudy night
82°💧 None💨 8 mphH 73%30.12 inHg
Feels like87°FWind direction southwestGusts —Humidity 73%Cloud cover 93%Pressure 30.12 inHg
Friday
Mostly clear night
81°💧 None💨 7 mphH 74%30.09 inHg
Feels like85°FWind direction westGusts —Humidity 74%Cloud cover 33%Pressure 30.09 inHg
Mostly sunny
71°💧 None💨 5 mphH 96%30.18 inHg
Feels like76°FWind direction northGusts —Humidity 96%Cloud cover 12%Pressure 30.18 inHg
Partly cloudy
67°💧 None💨 6 mphH 96%30.21 inHg
Feels like70°FWind direction northGusts —Humidity 96%Cloud cover 60%Pressure 30.21 inHg
Overcast night
76°💧 None💨 8 mphH 65%30.21 inHg
Feels like75°FWind direction northeastGusts —Humidity 65%Cloud cover 97%Pressure 30.21 inHg
Saturday
Mostly cloudy night
67°💧 None💨 11 mphH 73%30.15 inHg
Feels like63°FWind direction northeastGusts —Humidity 73%Cloud cover 90%Pressure 30.15 inHg
Overcast
61°💧 None💨 7 mphH 78%30.12 inHg
Feels like58°FWind direction eastGusts —Humidity 78%Cloud cover 100%Pressure 30.12 inHg
Light rain
61°💧 None💨 8 mphH 80%30.03 inHg
Feels like58°FWind direction eastGusts —Humidity 80%Cloud cover 100%Pressure 30.03 inHg
Heavy rain
66°💧 None💨 12 mphH 92%29.85 inHg
Feels like63°FWind direction southeastGusts —Humidity 92%Cloud cover 100%Pressure 29.85 inHg
Sunday
Overcast night
64°💧 None💨 16 mphH 97%29.74 inHg
Feels like59°FWind direction northGusts —Humidity 97%Cloud cover 100%Pressure 29.74 inHg
Overcast
62°💧 None💨 11 mphH 79%29.88 inHg
Feels like57°FWind direction northGusts —Humidity 79%Cloud cover 100%Pressure 29.88 inHg
Partly cloudy
57°💧 None💨 11 mphH 86%30.00 inHg
Feels like52°FWind direction northGusts —Humidity 86%Cloud cover 42%Pressure 30.00 inHg
Mostly clear night
68°💧 None💨 13 mphH 58%30.06 inHg
Feels like62°FWind direction northGusts —Humidity 58%Cloud cover 31%Pressure 30.06 inHg
Monday
Clear night
59°💧 None💨 9 mphH 64%30.15 inHg
Feels like53°FWind direction northeastGusts —Humidity 64%Cloud cover 7%Pressure 30.15 inHg
Sunny
54°💧 None💨 8 mphH 79%30.24 inHg
Feels like48°FWind direction northGusts —Humidity 79%Cloud cover 6%Pressure 30.24 inHg
Sunny
50°💧 None💨 6 mphH 83%30.33 inHg
Feels like45°FWind direction northeastGusts —Humidity 83%Cloud cover 2%Pressure 30.33 inHg
Clear night
62°💧 None💨 9 mphH 52%30.36 inHg
Feels like56°FWind direction northeastGusts —Humidity 52%Cloud cover 3%Pressure 30.36 inHg
Tuesday
Mostly cloudy night
55°💧 None💨 8 mphH 63%30.33 inHg
Feels like49°FWind direction northeastGusts —Humidity 63%Cloud cover 80%Pressure 30.33 inHg
Overcast
51°💧 None💨 6 mphH 82%30.39 inHg
Feels like46°FWind direction eastGusts —Humidity 82%Cloud cover 100%Pressure 30.39 inHg
Overcast
50°💧 None💨 8 mphH 83%30.42 inHg
Feels like45°FWind direction eastGusts —Humidity 83%Cloud cover 100%Pressure 30.42 inHg
Overcast night
61°💧 None💨 10 mphH 52%30.45 inHg
Feels like54°FWind direction eastGusts —Humidity 52%Cloud cover 100%Pressure 30.45 inHg
Wednesday
Overcast night
58°💧 None💨 9 mphH 61%30.39 inHg
Feels like52°FWind direction eastGusts —Humidity 61%Cloud cover 100%Pressure 30.39 inHg
Overcast
53°💧 None💨 11 mphH 75%30.42 inHg
Feels like46°FWind direction eastGusts —Humidity 75%Cloud cover 100%Pressure 30.42 inHg
Overcast
50°💧 None💨 7 mphH 82%30.45 inHg
Feels like45°FWind direction eastGusts —Humidity 82%Cloud cover 100%Pressure 30.45 inHg
Overcast night
63°💧 None💨 9 mphH 62%30.42 inHg
Feels like58°FWind direction northeastGusts —Humidity 62%Cloud cover 99%Pressure 30.42 inHg
Thursday
Mostly clear night
59°💧 None💨 9 mphH 65%30.36 inHg
Feels like54°FWind direction eastGusts —Humidity 65%Cloud cover 28%Pressure 30.36 inHg
Sunny
51°💧 None💨 7 mphH 86%30.42 inHg
Feels like46°FWind direction eastGusts —Humidity 86%Cloud cover 6%Pressure 30.42 inHg
Sunny
46°💧 None💨 7 mphH 93%30.45 inHg
Feels like41°FWind direction eastGusts —Humidity 93%Cloud cover 0%Pressure 30.45 inHg
Clear night
65°💧 None💨 8 mphH 53%30.42 inHg
Feels like60°FWind direction eastGusts —Humidity 53%Cloud cover 0%Pressure 30.42 inHg
Friday
Clear night
60°💧 None💨 6 mphH 69%30.36 inHg
Feels like56°FWind direction northeastGusts —Humidity 69%Cloud cover 8%Pressure 30.36 inHg
Sunny
51°💧 None💨 7 mphH 87%30.36 inHg
Feels like47°FWind direction eastGusts —Humidity 87%Cloud cover 5%Pressure 30.36 inHg
Sunny
46°💧 None💨 6 mphH 91%30.39 inHg
Feels like41°FWind direction northeastGusts —Humidity 91%Cloud cover 2%Pressure 30.39 inHg
In Irwin and, more broadly, across the state of Illinois:
This morning, the sky will feature a mix of sun and clouds, with temperatures starting in the mid-60s. Winds will be light out of the southeast at around 8 mph, with occasional gusts up to 16 mph. As the day progresses, temperatures are expected to rise into the lower 80s, creating warm and mild conditions. There is a small chance of light rain, with possible accumulation around 0.01 inches, and the probability of rain remains low at about 20%. Winds will continue to be light and from the southeast, maintaining a gentle breeze throughout the day. Overall, expect a warm and partly cloudy day, with a slight possibility of brief, light showers.
15-Day Weather Outlook for Irwin
TomorrowTomorrowMostly sunny86°/67°💧 None💨 9 mph
Daytime temperature 67°FFeels like 69°FHumidity 75%Pressure 29.85 inHgCloud cover 21%Wind direction southGusts 18 mphSunrise —Sunset —
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
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
mph
Sustained windMax gusts
NIGHT SKY · IRWIN, ILLINOIS
Tonight's Stargazing & Shooting Stars
Excellent observing conditions. Best local viewing window: 1:00 AM–2:00 AM.
98/100Best-hour score
BEST TIME TONIGHT1:00 AM–2:00 AM
Astronomical darkness: 8:42 PM–4:55 AM
☁Cloud cover3%
Real hourly forecast for the best viewing hour.
☾Moonlight0%
New Moon · Moon below the horizon at the best viewing hour.
☄Meteor activitySeptember ε-Perseids
Reference ZHR 8 · Radiant 49° high at the best hour.
✦Estimated visible meteors1–4/hour
Local estimate after weather, moonlight and radiant-height adjustments.
Chance ≥1 meteor in 30 min71%
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 NEARBYWeather in other cities⌄
Explore current conditions and forecasts for other locations.
Forecast data for Irwin were last refreshed today at 1:07 AM. The current forecast period extends through 13/09/2026 at 4:00 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.