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Grayville IL Weather - Clear - 83°F
Clear
83°F
Updated 8:43 pm
Feels Like 87°F
Humidity 66%
Wind N 0 mph
Barometer  29.95 in
Dew Point 71°F
Grayville IL Weather - Clear - 28°C
Clear
28°C
Updated 8:43 pm
Feels Like 31°C
Humidity 66%
Wind N 0 km/h
Barometer  101.4 kPa
Dew Point 21°C
Grayville, IL Weather and Current Conditionsgrayville il weather forecast

Grayville, IL Weather Forecast

Grayville Illinois WeatherGrayville, Illinois Weather Weather Forecast
14 Day API Grayville, IL Weather Forecast. Note: Our 7 day Grayville, Illinois weather forecast is our most reliable, and specific forecast. This model should only be used as a probable scenario. Forecasting more than 7 days ahead is challenging.
Grayville, IL Weather Forecast Dated: 843 PM Thu Sep 03 2026
Expect a hot stretch with plenty of sunshine and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.

Thursday, September 3, 2026

Mid-Morning
Grayville Weather - 2026-09-03 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
Grayville Weather - 2026-09-03 - Afternoon - Sunny
98°F 36°C
Sunny
Early-Evening
Grayville Weather - 2026-09-03 - Evening - Sunny
88°F 31°C
Sunny
Sizzling hot near 98°F 36°C with a heat index reaching 105°F 40°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds turning from the SSW to the S at 8 mph 13 km/h.

Friday, September 4, 2026

Mid-Morning
Grayville Weather - 2026-09-04 - Morning - Sunny
87°F 31°C
Sunny
Mid-Afternoon
Grayville Weather - 2026-09-04 - Afternoon - Overcast
101°F 38°C
Overcast
Early-Evening
Grayville Weather - 2026-09-04 - Evening - Overcast
94°F 35°C
Overcast
Sweltering temperatures near 101°F 38°C with a heat index of 104°F 40°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds switching from the WSW to the S at 9 mph 14 km/h.

Saturday, September 5, 2026

Mid-Morning
Grayville Weather - 2026-09-05 - Morning - Sunny
89°F 32°C
Sunny
Mid-Afternoon
Grayville Weather - 2026-09-05 - Afternoon - Sunny
102°F 39°C
Sunny
Early-Evening
Grayville Weather - 2026-09-05 - Evening - Scattered Showers
79°F 26°C
Scattered Showers
Dangerously hot with a high of 102°F 39°C (heat index near 106°F 41°C), locally heavy downpours at times, with increasing humidity and steady pressure. Winds moving from the WSW to the SW at 10 mph 16 km/h.

Sunday, September 6, 2026

Mid-Morning
Grayville Weather - 2026-09-06 - Morning - Sunny
77°F 25°C
Sunny
Mid-Afternoon
Grayville Weather - 2026-09-06 - Afternoon - Sunny
92°F 33°C
Sunny
Early-Evening
Grayville Weather - 2026-09-06 - Evening - Sunny
82°F 28°C
Sunny
Hot temperatures near 92°F 33°C, sunny throughout the day, with lower humidity and steady pressure. Winds out of the ENE at 11 mph 18 km/h. Gusts up to 22 mph 35 km/h.

Monday, September 7, 2026

Mid-Morning
Grayville Weather - 2026-09-07 - Morning - Sunny
71°F 22°C
Sunny
Mid-Afternoon
Grayville Weather - 2026-09-07 - Afternoon - Sunny
89°F 32°C
Sunny
Early-Evening
Grayville Weather - 2026-09-07 - Evening - Partly Cloudy
81°F 27°C
Partly Cloudy
Very warm with a high of 89°F 32°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds blowing from the E at 8 mph 13 km/h.

Tuesday, September 8, 2026

Mid-Morning
Grayville Weather - 2026-09-08 - Morning - Cloudy
77°F 25°C
Cloudy
Mid-Afternoon
Grayville Weather - 2026-09-08 - Afternoon - Sunny
94°F 34°C
Sunny
Early-Evening
Grayville Weather - 2026-09-08 - Evening - Sunny
88°F 32°C
Sunny
Very hot with temperatures reaching 94°F 34°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds SSE at 8 mph 13 km/h.

Wednesday, September 9, 2026

Mid-Morning
Grayville Weather - 2026-09-09 - Morning - Sunny
87°F 30°C
Sunny
Mid-Afternoon
Grayville Weather - 2026-09-09 - Afternoon - Cloudy
105°F 41°C
Cloudy
Early-Evening
Grayville Weather - 2026-09-09 - Evening - Cloudy
96°F 36°C
Cloudy
Dangerously hot temperatures around 105°F 41°C, partly cloudy in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds switching from the SW to the ENE at 6 mph 10 km/h.

Thursday, September 10, 2026

Mid-Morning
Grayville Weather - 2026-09-10 - Morning - Overcast
89°F 32°C
Overcast
Mid-Afternoon
Grayville Weather - 2026-09-10 - Afternoon - Sunny
109°F 43°C
Sunny
Early-Evening
Grayville Weather - 2026-09-10 - Evening - Overcast
95°F 35°C
Overcast
Sweltering temperatures near 109°F 43°C with a heat index of 112°F 45°C, cloudy throughout the day, with steady humidity and barometric pressure falling. Winds moving from the WSW to the S at 11 mph 17 km/h.

Friday, September 11, 2026

Mid-Morning
Grayville Weather - 2026-09-11 - Morning - Scattered Showers
88°F 31°C
Scattered Showers
Mid-Afternoon
Grayville Weather - 2026-09-11 - Afternoon - Scattered Showers
101°F 38°C
Scattered Showers
Early-Evening
Grayville Weather - 2026-09-11 - Evening - Scattered Showers
91°F 33°C
Scattered Showers
Scorching hot near 101°F 38°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds swinging from the WSW to the ESE at 7 mph 11 km/h.

Saturday, September 12, 2026

Mid-Morning
Grayville Weather - 2026-09-12 - Morning - Sunny
87°F 31°C
Sunny
Mid-Afternoon
Grayville Weather - 2026-09-12 - Afternoon - Sunny
104°F 40°C
Sunny
Early-Evening
Grayville Weather - 2026-09-12 - Evening - Partly Cloudy
96°F 36°C
Partly Cloudy
Sweltering heat reaching 104°F 40°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds picking up from SSW at 2 mph 4 km/h to S at 11 mph 17 km/h.

Sunday, September 13, 2026

Mid-Morning
Grayville Weather - 2026-09-13 - Morning - Sunny
92°F 34°C
Sunny
Mid-Afternoon
Grayville Weather - 2026-09-13 - Afternoon - Partly Cloudy
104°F 40°C
Partly Cloudy
Early-Evening
Grayville Weather - 2026-09-13 - Evening - Overcast
90°F 32°C
Overcast
Dangerously hot temperatures around 104°F 40°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with increasing humidity and steady pressure. Winds turning from the WSW to the WNW at 12 mph 19 km/h. Gusts up to 20 mph 33 km/h.

Monday, September 14, 2026

Mid-Morning
Grayville Weather - 2026-09-14 - Morning - Light Showers
86°F 30°C
Light Showers
Mid-Afternoon
Grayville Weather - 2026-09-14 - Afternoon - Partly Cloudy
103°F 39°C
Partly Cloudy
Early-Evening
Grayville Weather - 2026-09-14 - Evening - Overcast
90°F 33°C
Overcast
Dangerously hot with a high of 103°F 39°C, morning showers, giving way to clearing skies, with lower humidity and barometric pressure falling. Winds switching from the S to the SSW at 8 mph 14 km/h.

Tuesday, September 15, 2026

Mid-Morning
Grayville Weather - 2026-09-15 - Morning - Cloudy
73°F 23°C
Cloudy
Mid-Afternoon
Grayville Weather - 2026-09-15 - Afternoon - Sunny
85°F 30°C
Sunny
Early-Evening
Grayville Weather - 2026-09-15 - Evening - Sunny
76°F 24°C
Sunny
Quite warm around 85°F 30°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the WNW to the ESE at 9 mph 15 km/h.

Wednesday, September 16, 2026

Mid-Morning
Grayville Weather - 2026-09-16 - Morning - Sunny
69°F 21°C
Sunny
Mid-Afternoon
Grayville Weather - 2026-09-16 - Afternoon - Sunny
84°F 29°C
Sunny
Early-Evening
Grayville Weather - 2026-09-16 - Evening - Sunny
74°F 23°C
Sunny
Warm temperatures up to 84°F 29°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the NNW to the NNE at 9 mph 14 km/h.

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Weather by the Numbers

Thu, 3rd
Grayville IL Weather - Thursday, Sep 3, 2026 - Sunny
Hi: 98°F 36°C
Lo: 71°F 22°C
Sunrise 06:23 AM
Sunset 07:19 PM
Wind S 8 mph13 km/h
Dew Point 71°F22°C
uv Index 8
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 44%
Fri, 4th
Grayville IL Weather - Friday, Sep 4, 2026 - Sunny
Hi: 102°F 39°C
Lo: 79°F 26°C
Sunrise 06:24 AM
Sunset 07:17 PM
Wind SW 6 mph10 km/h
Dew Point 64°F18°C
uv Index 8
Barometric Pressure 29.94 in1014 mb
POP 0% *
Humidity 32%
Sat, 5th
Grayville IL Weather - Saturday, Sep 5, 2026 - Thundery Outbreaks In Nearby
Hi: 102°F 39°C
Lo: 76°F 25°C
Sunrise 06:25 AM
Sunset 07:16 PM
Wind NE 9 mph14 km/h
Dew Point 65°F18°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 10% *
Humidity 35%
Sun, 6th
Grayville IL Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 92°F 33°C
Lo: 70°F 21°C
Sunrise 06:26 AM
Sunset 07:14 PM
Wind ENE 12 mph20 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 29.94 in1014 mb
POP 2% *
Humidity 51%
Mon, 7th
Grayville IL Weather - Monday, Sep 7, 2026 - Sunny
Hi: 89°F 32°C
Lo: 61°F 16°C
Sunrise 06:27 AM
Sunset 07:12 PM
Wind E 8 mph13 km/h
Dew Point 55°F13°C
uv Index 7
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 37%
Tue, 8th
Grayville IL Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 95°F 35°C
Lo: 66°F 19°C
Sunrise 06:27 AM
Sunset 07:11 PM
Wind SSE 8 mph12 km/h
Dew Point 61°F16°C
uv Index 8
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 40%
Wed, 9th
Grayville IL Weather - Wednesday, Sep 9, 2026 - Partly Cloudy
Hi: 108°F 42°C
Lo: 78°F 25°C
Sunrise 06:28 AM
Sunset 07:09 PM
Wind WSW 13 mph20 km/h
Dew Point 61°F16°C
uv Index 9
Barometric Pressure 30 in1016 mb
POP 6% *
Humidity 31%
Thu, 10th
Grayville IL Weather - Thursday, Sep 10, 2026 - Cloudy
Hi: 110°F 44°C
Lo: 81°F 27°C
Sunrise 06:29 AM
Sunset 07:08 PM
Wind W 10 mph17 km/h
Dew Point 58°F14°C
uv Index 8
Barometric Pressure 29.91 in1013 mb
POP 2% *
Humidity 24%
Fri, 11th
Grayville IL Weather - Friday, Sep 11, 2026 - Patchy Rain Nearby
Hi: 107°F 42°C
Lo: 79°F 26°C
Sunrise 06:30 AM
Sunset 07:06 PM
Wind W 11 mph17 km/h
Dew Point 60°F15°C
uv Index 8
Barometric Pressure 29.85 in1011 mb
POP 5% *
Humidity 26%
Sat, 12th
Grayville IL Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 104°F 40°C
Lo: 77°F 25°C
Sunrise 06:31 AM
Sunset 07:05 PM
Wind SSW 4 mph7 km/h
Dew Point 60°F15°C
uv Index 9
Barometric Pressure 29.88 in1012 mb
POP 1% *
Humidity 27%
Sun, 13th
Grayville IL Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 105°F 40°C
Lo: 79°F 26°C
Sunrise 06:32 AM
Sunset 07:03 PM
Wind SW 15 mph23 km/h
Dew Point 58°F14°C
uv Index 9
Barometric Pressure 29.94 in1014 mb
POP 2% *
Humidity 24%
Mon, 14th
Grayville IL Weather - Monday, Sep 14, 2026 - Partly Cloudy
Hi: 103°F 40°C
Lo: 73°F 23°C
Sunrise 06:33 AM
Sunset 07:01 PM
Wind SW 12 mph20 km/h
Dew Point 61°F16°C
uv Index 9
Barometric Pressure 29.94 in1014 mb
POP 3% *
Humidity 30%
Tue, 15th
Grayville IL Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 86°F 30°C
Lo: 66°F 19°C
Sunrise 06:33 AM
Sunset 07:00 PM
Wind WNW 15 mph23 km/h
Dew Point 42°F6°C
uv Index 7
Barometric Pressure 29.85 in1011 mb
POP 1% *
Humidity 26%
Wed, 16th
Grayville IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 84°F 29°C
Lo: 60°F 16°C
Sunrise 06:34 AM
Sunset 06:58 PM
Wind NW 9 mph14 km/h
Dew Point 41°F5°C
uv Index 7
Barometric Pressure 30.03 in1017 mb
POP 0% *
Humidity 25%
* POP = Probability of Precipitation. Data for 12:00 PM.