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Now · 3:35 PM

Green Valley Weather & Hourly Forecast

United States · Illinois · 61534

Mostly sunny
97°F
Mostly sunny
Feels like: 110°F
💧 Humidity 52% 🌡 Pressure 29.88 inHg 💨 Wind 4 mph 👁 Visibility 6.2 mi Clouds 12% ☀️ UV index 5.5 · Moderate 🌅 Sunrise 6:28 AM 🌇 Sunset 7:26 PM

Hourly Forecast for Green Valley

Today
Mostly sunny · 4:00 PM Mostly sunny
97° 💧 None 💨 4 mph H 52%29.88 inHg
Partly cloudy · 7:00 PM Partly cloudy
94° 💧 None 💨 9 mph H 53%29.85 inHg
Mostly cloudy night · 10:00 PM Mostly cloudy night
84° 💧 None 💨 10 mph H 61%29.85 inHg
Tomorrow
Light rain · 1:00 AM Light rain
78° 💧 0.03 in 💨 5 mph H 63%29.85 inHg
Mostly cloudy night · 4:00 AM Mostly cloudy night
74° 💧 0.00 in 💨 5 mph H 65%29.85 inHg
Mostly cloudy · 7:00 AM Mostly cloudy
75° 💧 None 💨 4 mph H 81%29.88 inHg
Mostly sunny · 10:00 AM Mostly sunny
88° 💧 None 💨 1 mph H 53%29.88 inHg
Mostly cloudy · 1:00 PM Mostly cloudy
95° 💧 None 💨 9 mph H 40%29.88 inHg
Overcast · 4:00 PM Overcast
96° 💧 None 💨 11 mph H 41%29.85 inHg
Partly cloudy · 7:00 PM Partly cloudy
86° 💧 None 💨 13 mph H 65%29.85 inHg
Clear night · 10:00 PM Clear night
72° 💧 None 💨 10 mph H 92%29.94 inHg
Sunday
Clear night · 1:00 AM Clear night
67° 💧 None 💨 7 mph H 97%29.97 inHg
Clear night · 4:00 AM Clear night
65° 💧 None 💨 6 mph H 96%29.97 inHg
Sunny · 7:00 AM Sunny
68° 💧 None 💨 7 mph H 97%30.00 inHg
Sunny · 10:00 AM Sunny
79° 💧 None 💨 12 mph H 54%30.03 inHg
Partly cloudy · 1:00 PM Partly cloudy
87° 💧 None 💨 12 mph H 39%30.03 inHg

In Green Valley and, more broadly, across the state of Illinois: As the afternoon transitions into the evening, temperatures will remain quite hot, ranging from the mid-80s to near 95 degrees Fahrenheit. The sky will feature a mix of sun and clouds, providing some brief relief from the intense heat. Winds will be moderate, coming in from the northwest at around 10 mph, with gusts reaching up to 14 mph. No rain is expected during this period, so dry conditions will persist into the evening hours. It’s advisable to stay hydrated and wear appropriate sun protection if you plan to be outdoors. The weather will stay warm and relatively breezy through the evening, with no significant changes expected.

15-Day Weather Outlook for Green Valley

TomorrowTomorrow Light rain Light rain 98°/68° 💧 0.01 in 💨 15 mph
Sunday, Sep 6Sun Sep 6 Sunny Sunny 86°/63° 💧 None 💨 13 mph
Monday, Sep 7Mon Sep 7 Sunny Sunny 87°/59° 💧 None 💨 11 mph
Tuesday, Sep 8Tue Sep 8 Partly cloudy Partly cloudy 101°/62° 💧 None 💨 15 mph
Wednesday, Sep 9Wed Sep 9 Partly cloudy Partly cloudy 93°/69° 💧 None 💨 15 mph
Thursday, Sep 10Thu Sep 10 Overcast Overcast 81°/59° 💧 None 💨 9 mph
Friday, Sep 11Fri Sep 11 Moderate rain Moderate rain 62°/59° 💧 0.87 in 💨 11 mph
Saturday, Sep 12Sat Sep 12 Light rain Light rain 71°/61° 💧 0.19 in 💨 9 mph
Sunday, Sep 13Sun Sep 13 Light rain Light rain 83°/61° 💧 0.03 in 💨 17 mph
Monday, Sep 14Mon Sep 14 Sunny Sunny 73°/49° 💧 None 💨 8 mph
Tuesday, Sep 15Tue Sep 15 Moderate rain Moderate rain 78°/50° 💧 0.27 in 💨 21 mph
Wednesday, Sep 16Wed Sep 16 Light rain Light rain 86°/63° 💧 0.12 in 💨 16 mph
Thursday, Sep 17Thu Sep 17 Light rain Light rain 80°/65° 💧 0.10 in 💨 11 mph
Friday, Sep 18Fri Sep 18 Mostly sunny Mostly sunny 68°/50° 💧 None 💨 13 mph
Saturday, Sep 19Sat Sep 19 Sunny Sunny 71°/46° 💧 None 💨 9 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Green Valley

Vertical axis: °F · Color based on temperature
Mostly sunny at 4:00 PM
97° Today 4:00 PM
Mostly sunny at 5:00 PM
98° 5:00 PM
Partly cloudy at 6:00 PM
98° 6:00 PM
Partly cloudy at 7:00 PM
94° 7:00 PM
Mostly cloudy night at 8:00 PM
90° Today 8:00 PM
Overcast night at 9:00 PM
85° 9:00 PM
Mostly cloudy night at 10:00 PM
84° 10:00 PM
Mostly cloudy night at 11:00 PM
82° 11:00 PM
Partly cloudy night at 12:00 AM
80° Tomorrow 12:00 AM
Light rain at 1:00 AM
78° 1:00 AM
Clear night at 2:00 AM
75° 2:00 AM
Light rain at 3:00 AM
74° 3:00 AM
Mostly cloudy night at 4:00 AM
74° Tomorrow 4:00 AM
Mostly cloudy night at 5:00 AM
73° 5:00 AM
Light rain at 6:00 AM
72° 6:00 AM
Mostly cloudy at 7:00 AM
75° 7:00 AM
Mostly sunny at 8:00 AM
79° Tomorrow 8:00 AM
Sunny at 9:00 AM
83° 9:00 AM
Mostly sunny at 10:00 AM
88° 10:00 AM
Partly cloudy at 11:00 AM
92° 11:00 AM
Mostly cloudy at 12:00 PM
93° Tomorrow 12:00 PM
Mostly cloudy at 1:00 PM
95° 1:00 PM
Overcast at 2:00 PM
97° 2:00 PM
Overcast at 3:00 PM
96° 3:00 PM
Overcast at 4:00 PM
96° Tomorrow 4:00 PM
Mostly cloudy at 5:00 PM
97° 5:00 PM
Mostly cloudy at 6:00 PM
91° 6:00 PM
Partly cloudy at 7:00 PM
86° 7:00 PM
Clear night at 8:00 PM
79° Tomorrow 8:00 PM
Clear night at 9:00 PM
75° 9:00 PM
Clear night at 10:00 PM
72° 10:00 PM
Clear night at 11:00 PM
70° 11:00 PM
Clear night at 12:00 AM
69° Sunday 12:00 AM
Clear night at 1:00 AM
67° 1:00 AM
Clear night at 2:00 AM
66° 2:00 AM
Clear night at 3:00 AM
65° 3:00 AM
Clear night at 4:00 AM
65° Sunday 4:00 AM
Clear night at 5:00 AM
64° 5:00 AM
Clear night at 6:00 AM
64° 6:00 AM
Sunny at 7:00 AM
68° 7:00 AM
Sunny at 8:00 AM
70° Sunday 8:00 AM
Sunny at 9:00 AM
75° 9:00 AM
Sunny at 10:00 AM
79° 10:00 AM
Mostly sunny at 11:00 AM
83° 11:00 AM
Partly cloudy at 12:00 PM
85° Sunday 12:00 PM
Partly cloudy at 1:00 PM
87° 1:00 PM
Partly cloudy at 2:00 PM
87° 2:00 PM
Mostly sunny at 3:00 PM
88° 3:00 PM
Partly cloudy at 4:00 PM
87° Sunday 4:00 PM
Mostly cloudy at 5:00 PM
85° 5:00 PM
Partly cloudy at 6:00 PM
82° 6:00 PM
Partly cloudy at 7:00 PM
77° 7:00 PM
Overcast night at 8:00 PM
73° Sunday 8:00 PM
Overcast night at 9:00 PM
69° 9:00 PM
Overcast night at 10:00 PM
67° 10:00 PM
Mostly cloudy night at 11:00 PM
64° 11:00 PM
Mostly cloudy night at 12:00 AM
63° Monday 12:00 AM
Mostly cloudy night at 1:00 AM
62° 1:00 AM
Clear night at 2:00 AM
61° 2:00 AM
Partly cloudy night at 3:00 AM
60° 3:00 AM
Mostly clear night at 4:00 AM
60° Monday 4:00 AM
Partly cloudy night at 5:00 AM
60° 5:00 AM
Partly cloudy night at 6:00 AM
59° 6:00 AM
Mostly cloudy at 7:00 AM
59° 7:00 AM
Mostly cloudy at 8:00 AM
64° Monday 8:00 AM
Partly cloudy at 9:00 AM
71° 9:00 AM
Mostly sunny at 10:00 AM
76° 10:00 AM
Mostly sunny at 11:00 AM
80° 11:00 AM
Mostly sunny at 12:00 PM
83° Monday 12:00 PM
Mostly sunny at 1:00 PM
85° 1:00 PM
Sunny at 2:00 PM
87° 2:00 PM
Sunny at 3:00 PM
88° 3:00 PM
Sunny at 4:00 PM
87° Monday 4:00 PM
Mostly sunny at 5:00 PM
86° 5:00 PM
Mostly sunny at 6:00 PM
82° 6:00 PM
Mostly sunny at 7:00 PM
76° 7:00 PM
Clear night at 8:00 PM
72° Monday 8:00 PM
Clear night at 9:00 PM
68° 9:00 PM
Partly cloudy night at 10:00 PM
67° 10:00 PM
Partly cloudy night at 11:00 PM
66° 11:00 PM
Partly cloudy night at 12:00 AM
65° Tuesday 12:00 AM
Partly cloudy night at 1:00 AM
63° 1:00 AM
Overcast night at 2:00 AM
62° 2:00 AM
Overcast night at 3:00 AM
62° 3:00 AM
Overcast night at 4:00 AM
62° Tuesday 4:00 AM
Overcast night at 5:00 AM
61° 5:00 AM
Mostly cloudy night at 6:00 AM
61° 6:00 AM
Mostly cloudy at 7:00 AM
62° 7:00 AM
Mostly cloudy at 8:00 AM
68° Tuesday 8:00 AM
Partly cloudy at 9:00 AM
75° 9:00 AM
Partly cloudy at 10:00 AM
82° 10:00 AM
Partly cloudy at 11:00 AM
88° 11:00 AM
Partly cloudy at 12:00 PM
92° Tuesday 12:00 PM
Partly cloudy at 1:00 PM
96° 1:00 PM
Sunny at 2:00 PM
98° 2:00 PM
Sunny at 3:00 PM
100° 3:00 PM

AIR QUALITY FORECAST

Air Quality Forecast for Green Valley

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 4:00 PM
PM2.5 Fine particles Good 2,7µg/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 3,1µg/m³

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

O₃ Ozone Fair 74,2µg/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 Green Valley

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 8,0Very high 🙂Fair
Tomorrow UV 7,4High 🙂Fair
Sunday UV 7,6High 😐Moderate
Monday UV 7,0High 😐Moderate
Tuesday UV 9,0Very high 😐Moderate
Wednesday UV 8,0Very high Unavailable
Thursday UV 5,0Moderate Unavailable
Hourly UV index today
4:00 PMUV 3,6 5:00 PMUV 1,6 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 Green Valley

Vertical axis: mph · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in mph. Today 4:00 PM 5:00 PM 6:00 PM 7:00 PM Today 8:00 PM 9:00 PM 10:00 PM 11:00 PM Tomorrow 12:00 AM 1:00 AM 2:00 AM 3:00 AM Tomorrow 4:00 AM 5:00 AM 6:00 AM 7:00 AM Tomorrow 8:00 AM 9:00 AM 10:00 AM 11:00 AM Tomorrow 12:00 PM 1:00 PM 2:00 PM 3:00 PM Tomorrow 4:00 PM 5:00 PM 6:00 PM 7:00 PM Tomorrow 8:00 PM 9:00 PM 10:00 PM 11:00 PM Sunday 12:00 AM 1:00 AM 2:00 AM 3:00 AM Sunday 4:00 AM 5:00 AM 6:00 AM 7:00 AM Sunday 8:00 AM 9:00 AM 10:00 AM 11:00 AM Sunday 12:00 PM 1:00 PM 2:00 PM 3:00 PM Sunday 4:00 PM 5:00 PM 6:00 PM 7:00 PM Sunday 8:00 PM 9:00 PM 10:00 PM 11:00 PM Monday 12:00 AM 1:00 AM 2:00 AM 3:00 AM Monday 4:00 AM 5:00 AM 6:00 AM 7:00 AM Monday 8:00 AM 9:00 AM 10:00 AM 11:00 AM Monday 12:00 PM 1:00 PM 2:00 PM 3:00 PM Monday 4:00 PM 5:00 PM 6:00 PM 7:00 PM Monday 8:00 PM 9:00 PM 10:00 PM 11:00 PM Tuesday 12:00 AM 1:00 AM 2:00 AM 3:00 AM Tuesday 4:00 AM 5:00 AM 6:00 AM 7:00 AM Tuesday 8:00 AM 9:00 AM 10:00 AM 11:00 AM Tuesday 12:00 PM 1:00 PM 2:00 PM 3:00 PM
Sustained wind Max gusts
NIGHT SKY · GREEN VALLEY, ILLINOIS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 2:00 AM–3:00 AM.

97/100Best-hour score
BEST TIME TONIGHT 2:00 AM–3:00 AM Astronomical darkness: 9:00 PM–4:55 AM
Cloud cover 0% Real hourly forecast for the best viewing hour.
Moonlight 41% Last Quarter · Moon about 21° above the horizon at the best viewing hour.
Meteor activity No major shower Sporadic meteors remain possible even without a major shower.
Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.
Chance ≥1 meteor in 30 min47%
UPCOMING METEOR NIGHTSAstronomy only — check the weather closer to each date.
SEP 20
Southern TauridsActivity begins · 63% Moon
Weather TBD
OCT 2
OrionidsActivity begins · 66% Moon
Weather TBD

Forecast data for Green Valley were last refreshed today at 3:35 PM. The current forecast period extends through 06/09/2026 at 1:00 PM. 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.