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Weather Conditions for Okawville, Illinois : Washington County
Issued: 11:51 am CDT Sep 4, 2026 Latitude: 38.4342164 Longitude: -89.5503676 View on Google Maps

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This Afternoon Tonight Saturday Sunday Labor Day Tuesday Wednesday Thursday
Sunny on This Afternoon Mostly Clear on Tonight Sunny on Saturday Sunny on Sunday Sunny on Labor Day Sunny on Tuesday Sunny on Wednesday 20% chance of rain on Thursday
High: 99°F Low: 76°F High: 100°F High: 93°F High: 91°F High: 96°F High: 99°F High: 95°F
Low: 72°F Low: 66°F Low: 67°F Low: 75°F Low: 75°F  
Sunny Mostly Clear Sunny Sunny Sunny Sunny Sunny Rain
Current Conditions at
SCOTT AFB - (KBLV)
97°
Feels like 107°F
Clear
as of 11:55 AM CDST
Rel. Humidity: 47%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
10 MPH
260° West
Cloud Level(s): Clear
Current Conditions at
SPARTA - (KSAR)
95°
Feels like 99°F
Clear
as of 11:55 AM CDST
Rel. Humidity: 41%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
3 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
CENTRALIA MUNICIPAL ARPT - (KENL)
97°
Feels like 101°F
Clear
as of 11:55 AM CDST
Rel. Humidity: 39%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
9 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
SALEM-LECKRONE ARPT - (KSLO)
99°
Feels like 105°F
Clear
as of 11:55 AM CDST
Rel. Humidity: 39%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Sunny on This Afternoon This Afternoon... Sunny and hot, with a high near 99. Heat index values as high as 107. Southwest wind 3 to 6 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 76. Calm wind.

Sunny on Saturday Saturday... Sunny and hot, with a high near 100. Heat index values as high as 109. Light and variable wind.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 72. Light northeast wind.

Sunny on Sunday Sunday... Sunny, with a high near 93. Calm wind becoming northeast 5 to 8 mph in the morning.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 66.

Sunny on Labor Day Labor Day... Sunny, with a high near 91.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 67.

Sunny on Tuesday Tuesday... Sunny, with a high near 96.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 75.

Sunny on Wednesday Wednesday... Sunny and hot, with a high near 99.

Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 75.

20% chance of rain Thursday Thursday... A 20 percent chance of showers. Sunny, with a high near 95.

Current Radar Image


Sun Almanac for Okawville, Illinois
Astronomical Sunrise 04:59 AM?Astronomical sunrise occurs when the Sun is 18° below the horizon and the sky begins to brighten from a completly darkened state.
Nautical Sunrise 05:32 AM?Nautical sunrise (or nautical dawn) is the precise moment when the sun's center is 12° below the horizon in the morning. It marks the beginning of nautical twilight, allowing pilots/mariners to see the horizon.
Civil Sunrise 06:04 AM?Civil sunrise is the moment in the morning when the sun's center is 6° below the horizon. It marks the start of morning civil twilight, providing enough natural light for most, outdoor activities without artificial lighting. It typically occurs roughly 20-30 minutes before actual sunrise.
Sunrise 06:31 AM?Sunrise (or sunup) is the moment when the upper rim of the Sun appears on the horizon in the morning. It marks the end of the twilight phase, often accompanied by distinct atmospheric colors.

Daylight: 12 Hours 53 Minutes?Daylight hours are the period of time between local sunrise and sunset, representing the daily portion of sunlight. These hours change in length based on season, Earth's tilt, and latitude.

Sunset 7:24 PM?The sunset is defined in astronomy as the moment the upper limb of the Sun disappears below the horizon. It marks the end of daylight and is often accompanied by distinct atmospheric colors. It also signals the beginning of twilight.
Civil Sunset 7:51 PM?Civil sunset (or evening civil twilight) occurs when the center of the sun is 6° below the horizon, marking the end of the brightest twilight phase. It typically occurs roughly 20-30 minutes after sunset, providing enough light for most outdoor activities to continue without artificial light.
Nautical Sunset 8:23 PM?Nautical sunset occurs when the sun's center is 12° below the horizon, marking the end of nautical twilight. This phase, following civil twilight, allows the horizon to remain visible, enabling mariners to take accurate star sights for navigation. The sky is dark, but some ambient light remains
Astronomical Sunset 8:56 PM?Astronomical sunrise occurs when the Sun drops to 18° below the horizon. This causes the sky to enter a completly darkened state.

Civil Rise to Set: 13 Hours 47 Minutes
Nautical Rise to Set: 14 Hours 51 Minutes
Astro Rise to Set: 15 Hours 57 Minutes

Click for yearly Sun Almanac for Okawville
Moon Almanac for Okawville, Illinois
Moon Phase: Last Quarter
Moon Illumination: 46%
Moon Age: 22.5 Days
Moon is currently above the horizon
Distance from Moon to Earth: 225,968 miles
Upcoming Lunar Events for
Okawville:
Next EventEvent TimeIllum

Moonset:02:51 pm Fri44.7%
Moonrise:11:56 pm Fri40.4%
High Moon:07:55 am Sat36.6%
Moonset:03:53 pm Sat32.9%
New Moon: Wed Aug 12
First Quarter: Wed Aug 19
Full Moon: Fri Aug 28
Last Quarter: Fri Sep 4
New Moon: Thu Sep 10
Click for Monthly Moon Almanac
Illinois' Current Temperatures
Illinois' Current Temperature Map


Illinois' Satellite ImageIllinois Satellite Image

Illinois' Current Wind DirectionIllinois' Current Wind Direction

National Summary
of upper and lower values of current conditions amongst 7059 locations
in the contiguous United States
High
Temp
99° Batesville, Arkansas
and 16 other locations
Low
Temp
39° Mullan Pass, Idaho
Wind
Speed
30mph Tooele, Utah
Wind
Gust
41mph Cedar City, Utah
Wind
Chill
43° Lakeview, Oregon
Heat
Index
176° Blackstone/Fort, Virginia
High
Pressure
30.72Hg Salida Mountain, Colorado
Low
Pressure
29.73Hg Oscar, Montana
# Locations Reporting Rain 51
# Locations Reporting Thunderstorms / Lightning 31
# Locations Reporting Fog 3
Average Temperature in the Contiguous USA 82°
Illinois State Summary
of upper and lower values of current conditions amongst 56 locations
in Illinois
High
Temp
99° Salem-Leckrone Arpt
and 4 other locations
Low
Temp
72° Waukegan
Wind
Speed
18mph Romeoville Wfo
and 1 other location
Wind
Gust
29mph Chicago-Midway
Heat
Index
112° Cairo
High
Pressure
30.04Hg Schaumburg
Low
Pressure
29.95Hg Moline
and 1 other location
Average temperature in Illinois 91°
# Locations Reporting Thunderstorms 2
# Locations Reporting VFR
(Visual Flight Rules)
56