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Now · 12:47 PM

Rantoul Weather & Hourly Forecast

United States · Illinois · 61866

Mostly sunny
94°F
Mostly sunny
Feels like: 107°F
💧 Humidity 61% 🌡 Pressure 29.94 inHg 💨 Wind 10 mph 👁 Visibility 6.2 mi Clouds 11% ☀️ UV index 7.6 · High 🌅 Sunrise 6:23 AM 🌇 Sunset 7:20 PM

Hourly Forecast for Rantoul

Today
Mostly sunny · 1:00 PM Mostly sunny
94° 💧 None 💨 10 mph H 61%29.94 inHg
Sunny · 4:00 PM Sunny
96° 💧 None 💨 3 mph H 52%29.91 inHg
Mostly sunny · 7:00 PM Mostly sunny
87° 💧 None 💨 6 mph H 62%29.85 inHg
Mostly clear night · 10:00 PM Mostly clear night
79° 💧 None 💨 8 mph H 70%29.88 inHg
Tomorrow
Clear night · 1:00 AM Clear night
77° 💧 0.00 in 💨 8 mph H 74%29.88 inHg
Light rain · 4:00 AM Light rain
74° 💧 0.00 in 💨 9 mph H 80%29.91 inHg
Mostly cloudy · 7:00 AM Mostly cloudy
77° 💧 0.04 in 💨 3 mph H 78%29.88 inHg
Mostly sunny · 10:00 AM Mostly sunny
87° 💧 None 💨 4 mph H 69%29.91 inHg
Sunny · 1:00 PM Sunny
93° 💧 None 💨 8 mph H 61%29.91 inHg
Sunny · 4:00 PM Sunny
93° 💧 None 💨 10 mph H 64%29.88 inHg
Sunny · 7:00 PM Sunny
81° 💧 None 💨 13 mph H 82%29.88 inHg
Clear night · 10:00 PM Clear night
71° 💧 None 💨 8 mph H 95%29.97 inHg
Sunday
Mostly clear night · 1:00 AM Mostly clear night
71° 💧 None 💨 7 mph H 87%29.97 inHg
Clear night · 4:00 AM Clear night
66° 💧 None 💨 7 mph H 95%30.00 inHg
Sunny · 7:00 AM Sunny
64° 💧 None 💨 9 mph H 91%30.03 inHg
Sunny · 10:00 AM Sunny
71° 💧 None 💨 11 mph H 66%30.09 inHg

In Rantoul and, more broadly, across the state of Illinois: The rest of the day will be mostly sunny with just a few clouds scattered across the sky. Expect very hot conditions, with temperatures climbing between 81 and 96 degrees Fahrenheit. Winds will remain light from the west, with maximum sustained speeds around 9 mph and occasional gusts reaching 16 mph. No precipitation is expected, so it should stay dry throughout the afternoon. Remember to stay hydrated and take precautions against the heat if you'll be outdoors. The weather will remain stable with clear skies and gentle breezes into the evening hours.

15-Day Weather Outlook for Rantoul

TomorrowTomorrow Light rain Light rain 94°/69° 💧 0.05 in 💨 13 mph
Sunday, Sep 6Sun Sep 6 Sunny Sunny 77°/63° 💧 None 💨 12 mph
Monday, Sep 7Mon Sep 7 Mostly sunny Mostly sunny 77°/56° 💧 None 💨 10 mph
Tuesday, Sep 8Tue Sep 8 Sunny Sunny 90°/63° 💧 None 💨 12 mph
Wednesday, Sep 9Wed Sep 9 Light rain Light rain 91°/66° 💧 0.02 in 💨 16 mph
Thursday, Sep 10Thu Sep 10 Mostly cloudy Mostly cloudy 74°/58° 💧 None 💨 9 mph
Friday, Sep 11Fri Sep 11 Moderate rain Moderate rain 62°/56° 💧 1.26 in 💨 8 mph
Saturday, Sep 12Sat Sep 12 Light rain Light rain 68°/59° 💧 0.09 in 💨 9 mph
Sunday, Sep 13Sun Sep 13 Light rain Light rain 81°/62° 💧 0.04 in 💨 13 mph
Monday, Sep 14Mon Sep 14 Sunny Sunny 68°/49° 💧 None 💨 9 mph
Tuesday, Sep 15Tue Sep 15 Light rain Light rain 72°/48° 💧 0.05 in 💨 12 mph
Wednesday, Sep 16Wed Sep 16 Moderate rain Moderate rain 79°/63° 💧 0.27 in 💨 18 mph
Thursday, Sep 17Thu Sep 17 Light rain Light rain 78°/63° 💧 0.09 in 💨 10 mph
Friday, Sep 18Fri Sep 18 Partly cloudy Partly cloudy 65°/50° 💧 None 💨 13 mph
Saturday, Sep 19Sat Sep 19 Partly cloudy Partly cloudy 67°/47° 💧 None 💨 10 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Rantoul

Vertical axis: °F · Color based on temperature
Mostly sunny at 1:00 PM
94° Today 1:00 PM
Sunny at 2:00 PM
94° 2:00 PM
Sunny at 3:00 PM
95° 3:00 PM
Sunny at 4:00 PM
96° 4:00 PM
Sunny at 5:00 PM
96° Today 5:00 PM
Mostly sunny at 6:00 PM
93° 6:00 PM
Mostly sunny at 7:00 PM
87° 7:00 PM
Partly cloudy night at 8:00 PM
84° 8:00 PM
Mostly clear night at 9:00 PM
82° Today 9:00 PM
Mostly clear night at 10:00 PM
79° 10:00 PM
Mostly clear night at 11:00 PM
77° 11:00 PM
Clear night at 12:00 AM
77° 12:00 AM
Clear night at 1:00 AM
77° Tomorrow 1:00 AM
Clear night at 2:00 AM
76° 2:00 AM
Light rain at 3:00 AM
75° 3:00 AM
Light rain at 4:00 AM
74° 4:00 AM
Mostly cloudy night at 5:00 AM
74° Tomorrow 5:00 AM
Mostly cloudy night at 6:00 AM
74° 6:00 AM
Mostly cloudy at 7:00 AM
77° 7:00 AM
Light rain at 8:00 AM
81° 8:00 AM
Light rain at 9:00 AM
83° Tomorrow 9:00 AM
Mostly sunny at 10:00 AM
87° 10:00 AM
Sunny at 11:00 AM
89° 11:00 AM
Mostly sunny at 12:00 PM
92° 12:00 PM
Sunny at 1:00 PM
93° Tomorrow 1:00 PM
Sunny at 2:00 PM
93° 2:00 PM
Sunny at 3:00 PM
94° 3:00 PM
Sunny at 4:00 PM
93° 4:00 PM
Sunny at 5:00 PM
91° Tomorrow 5:00 PM
Sunny at 6:00 PM
87° 6:00 PM
Sunny at 7:00 PM
81° 7:00 PM
Clear night at 8:00 PM
76° 8:00 PM
Clear night at 9:00 PM
74° Tomorrow 9:00 PM
Clear night at 10:00 PM
71° 10:00 PM
Clear night at 11:00 PM
69° 11:00 PM
Mostly clear night at 12:00 AM
69° 12:00 AM
Mostly clear night at 1:00 AM
71° Sunday 1:00 AM
Clear night at 2:00 AM
68° 2:00 AM
Clear night at 3:00 AM
66° 3:00 AM
Clear night at 4:00 AM
66° 4:00 AM
Clear night at 5:00 AM
65° Sunday 5:00 AM
Clear night at 6:00 AM
64° 6:00 AM
Sunny at 7:00 AM
64° 7:00 AM
Sunny at 8:00 AM
66° 8:00 AM
Sunny at 9:00 AM
68° Sunday 9:00 AM
Sunny at 10:00 AM
71° 10:00 AM
Sunny at 11:00 AM
73° 11:00 AM
Sunny at 12:00 PM
75° 12:00 PM
Sunny at 1:00 PM
76° Sunday 1:00 PM
Partly cloudy at 2:00 PM
77° 2:00 PM
Partly cloudy at 3:00 PM
77° 3:00 PM
Partly cloudy at 4:00 PM
77° 4:00 PM
Mostly sunny at 5:00 PM
76° Sunday 5:00 PM
Mostly sunny at 6:00 PM
73° 6:00 PM
Mostly sunny at 7:00 PM
69° 7:00 PM
Clear night at 8:00 PM
66° 8:00 PM
Clear night at 9:00 PM
64° Sunday 9:00 PM
Clear night at 10:00 PM
63° 10:00 PM
Partly cloudy night at 11:00 PM
63° 11:00 PM
Partly cloudy night at 12:00 AM
62° 12:00 AM
Mostly cloudy night at 1:00 AM
61° Monday 1:00 AM
Clear night at 2:00 AM
59° 2:00 AM
Clear night at 3:00 AM
59° 3:00 AM
Mostly clear night at 4:00 AM
58° 4:00 AM
Partly cloudy night at 5:00 AM
57° Monday 5:00 AM
Partly cloudy night at 6:00 AM
56° 6:00 AM
Partly cloudy at 7:00 AM
56° 7:00 AM
Mostly sunny at 8:00 AM
60° 8:00 AM
Mostly sunny at 9:00 AM
65° Monday 9:00 AM
Mostly sunny at 10:00 AM
68° 10:00 AM
Sunny at 11:00 AM
71° 11:00 AM
Mostly sunny at 12:00 PM
74° 12:00 PM
Mostly sunny at 1:00 PM
76° Monday 1:00 PM
Sunny at 2:00 PM
76° 2:00 PM
Mostly sunny at 3:00 PM
77° 3:00 PM
Mostly sunny at 4:00 PM
77° 4:00 PM
Partly cloudy at 5:00 PM
76° Monday 5:00 PM
Partly cloudy at 6:00 PM
74° 6:00 PM
Partly cloudy at 7:00 PM
69° 7:00 PM
Mostly cloudy night at 8:00 PM
66° 8:00 PM
Overcast night at 9:00 PM
65° Monday 9:00 PM
Overcast night at 10:00 PM
64° 10:00 PM
Overcast night at 11:00 PM
64° 11:00 PM
Overcast night at 12:00 AM
64° 12:00 AM
Overcast night at 1:00 AM
63° Tuesday 1:00 AM
Partly cloudy night at 2:00 AM
63° 2:00 AM
Mostly cloudy night at 3:00 AM
63° 3:00 AM
Mostly cloudy night at 4:00 AM
63° 4:00 AM
Mostly cloudy night at 5:00 AM
63° Tuesday 5:00 AM
Overcast night at 6:00 AM
63° 6:00 AM
Mostly cloudy at 7:00 AM
63° 7:00 AM
Mostly sunny at 8:00 AM
67° 8:00 AM
Mostly sunny at 9:00 AM
72° Tuesday 9:00 AM
Sunny at 10:00 AM
76° 10:00 AM
Sunny at 11:00 AM
79° 11:00 AM
Sunny at 12:00 PM
82° 12:00 PM

AIR QUALITY FORECAST

Air Quality Forecast for Rantoul

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 1:00 PM
PM2.5 Fine particles Good 6,4µg/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 6,8µg/m³

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

O₃ Ozone Fair 94,0µg/m³

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

NO₂ Nitrogen dioxide Good 1,0µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Rantoul

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 8,1Very high 🙂Fair
Tomorrow UV 7,5High 🙂Fair
Sunday UV 7,7High 🙂Fair
Monday UV 6,0High 😐Moderate
Tuesday UV 8,0Very high 🙂Fair
Wednesday UV 8,0Very high Unavailable
Thursday UV 5,0Moderate Unavailable
Hourly UV index today
1:00 PMUV 8,1 2:00 PMUV 7,3 3:00 PMUV 5,5 4:00 PMUV 3,2 5:00 PMUV 1,5 6:00 PMUV 0,5 7:00 PMUV 0,0
Today's weather health advice Open today's recommendations.

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

High heat

Stay hydrated and avoid intense exercise during the hottest part of the day.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Rantoul

Vertical axis: mph · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in mph. Today 1:00 PM 2:00 PM 3:00 PM 4:00 PM Today 5:00 PM 6:00 PM 7:00 PM 8:00 PM Today 9:00 PM 10:00 PM 11:00 PM 12:00 AM Tomorrow 1:00 AM 2:00 AM 3:00 AM 4:00 AM Tomorrow 5:00 AM 6:00 AM 7:00 AM 8:00 AM Tomorrow 9:00 AM 10:00 AM 11:00 AM 12:00 PM Tomorrow 1:00 PM 2:00 PM 3:00 PM 4:00 PM Tomorrow 5:00 PM 6:00 PM 7:00 PM 8:00 PM Tomorrow 9:00 PM 10:00 PM 11:00 PM 12:00 AM Sunday 1:00 AM 2:00 AM 3:00 AM 4:00 AM Sunday 5:00 AM 6:00 AM 7:00 AM 8:00 AM Sunday 9:00 AM 10:00 AM 11:00 AM 12:00 PM Sunday 1:00 PM 2:00 PM 3:00 PM 4:00 PM Sunday 5:00 PM 6:00 PM 7:00 PM 8:00 PM Sunday 9:00 PM 10:00 PM 11:00 PM 12:00 AM Monday 1:00 AM 2:00 AM 3:00 AM 4:00 AM Monday 5:00 AM 6:00 AM 7:00 AM 8:00 AM Monday 9:00 AM 10:00 AM 11:00 AM 12:00 PM Monday 1:00 PM 2:00 PM 3:00 PM 4:00 PM Monday 5:00 PM 6:00 PM 7:00 PM 8:00 PM Monday 9:00 PM 10:00 PM 11:00 PM 12:00 AM Tuesday 1:00 AM 2:00 AM 3:00 AM 4:00 AM Tuesday 5:00 AM 6:00 AM 7:00 AM 8:00 AM Tuesday 9:00 AM 10:00 AM 11:00 AM 12:00 PM
Sustained wind Max gusts
Internal PR simulation: 4.19 Population: 12,421

Forecast data for Rantoul were last refreshed today at 12:47 PM. The current forecast period extends through 06/09/2026 at 10:00 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.