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Percy IL Weather - Clear - 88°F
Clear
88°F
Updated 9:32 am
Feels Like 93°F
Humidity 56%
Wind SW 5 mph
Barometer  30.02 in
Dew Point 71°F
Percy IL Weather - Clear - 31°C
Clear
31°C
Updated 9:32 am
Feels Like 34°C
Humidity 56%
Wind SW 8 km/h
Barometer  101.7 kPa
Dew Point 22°C
Percy, IL Weather and Current Conditionspercy il weather forecast

Percy, IL Weather Forecast

Percy Illinois WeatherPercy, Illinois Weather Weather Forecast
14 day API forecast for Percy, Illinois. Note. The 7-day weather forecast for Percy, IL is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Percy, IL Weather Forecast Dated: 932 AM Fri Sep 04 2026
Expect a hot stretch with a mix of sun and clouds and frequent chances of rain over the coming period. moderate humidity and no major pressure swings will dominate.

Friday, September 4, 2026

Mid-Morning
Percy Weather - 2026-09-04 - Morning - Sunny
86°F 30°C
Sunny
Mid-Afternoon
Percy Weather - 2026-09-04 - Afternoon - Sunny
101°F 39°C
Sunny
Early-Evening
Percy Weather - 2026-09-04 - Evening - Sunny
91°F 33°C
Sunny
Scorching heat reaching 101°F 39°C, feeling like 112°F 45°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds turning from the W to the SSE at 9 mph 14 km/h.

Saturday, September 5, 2026

Mid-Morning
Percy Weather - 2026-09-05 - Morning - Sunny
86°F 30°C
Sunny
Mid-Afternoon
Percy Weather - 2026-09-05 - Afternoon - Sunny
102°F 39°C
Sunny
Early-Evening
Percy Weather - 2026-09-05 - Evening - Sunny
88°F 31°C
Sunny
Sweltering temperatures near 102°F 39°C with a heat index of 105°F 40°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure.

Sunday, September 6, 2026

Mid-Morning
Percy Weather - 2026-09-06 - Morning - Partly Cloudy
76°F 24°C
Partly Cloudy
Mid-Afternoon
Percy Weather - 2026-09-06 - Afternoon - Sunny
96°F 36°C
Sunny
Early-Evening
Percy Weather - 2026-09-06 - Evening - Sunny
85°F 30°C
Sunny
Sizzling hot with 96°F 36°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds blowing from the NE at 13 mph 20 km/h. Gusts up to 21 mph 34 km/h.

Monday, September 7, 2026

Mid-Morning
Percy Weather - 2026-09-07 - Morning - Sunny
69°F 21°C
Sunny
Mid-Afternoon
Percy Weather - 2026-09-07 - Afternoon - Sunny
88°F 31°C
Sunny
Early-Evening
Percy Weather - 2026-09-07 - Evening - Sunny
87°F 31°C
Sunny
Warm temperatures up to 88°F 31°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the E to the ENE at 8 mph 13 km/h.

Tuesday, September 8, 2026

Mid-Morning
Percy Weather - 2026-09-08 - Morning - Sunny
79°F 26°C
Sunny
Mid-Afternoon
Percy Weather - 2026-09-08 - Afternoon - Sunny
99°F 37°C
Sunny
Early-Evening
Percy Weather - 2026-09-08 - Evening - Sunny
92°F 34°C
Sunny
Very hot with a high of 99°F 37°C, sunny throughout the day, with steady humidity and steady pressure.

Wednesday, September 9, 2026

Mid-Morning
Percy Weather - 2026-09-09 - Morning - Partly Cloudy
81°F 27°C
Partly Cloudy
Mid-Afternoon
Percy Weather - 2026-09-09 - Afternoon - Sunny
92°F 34°C
Sunny
Early-Evening
Percy Weather - 2026-09-09 - Evening - Sunny
91°F 33°C
Sunny
Very hot with temperatures reaching 92°F 34°C, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds swinging from the SSW to the ESE at 6 mph 10 km/h.

Thursday, September 10, 2026

Mid-Morning
Percy Weather - 2026-09-10 - Morning - Scattered Showers
74°F 23°C
Scattered Showers
Mid-Afternoon
Percy Weather - 2026-09-10 - Afternoon - Overcast
91°F 33°C
Overcast
Early-Evening
Percy Weather - 2026-09-10 - Evening - Partly Cloudy
84°F 29°C
Partly Cloudy
Hot and sweltering around 91°F 33°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling. Winds shifting from the NNE to the S at 5 mph 8 km/h.

Friday, September 11, 2026

Mid-Morning
Percy Weather - 2026-09-11 - Morning - Light Showers
65°F 18°C
Light Showers
Mid-Afternoon
Percy Weather - 2026-09-11 - Afternoon - Overcast
81°F 27°C
Overcast
Early-Evening
Percy Weather - 2026-09-11 - Evening - Partly Cloudy
75°F 23°C
Partly Cloudy
Quite warm around 81°F 27°C, scattered morning showers before drying out later, with lower humidity and barometric pressure falling. Winds turning from the ENE to the ESE at 11 mph 17 km/h. Gusts up to 21 mph 34 km/h.

Saturday, September 12, 2026

Mid-Morning
Percy Weather - 2026-09-12 - Morning - Cloudy
67°F 19°C
Cloudy
Mid-Afternoon
Percy Weather - 2026-09-12 - Afternoon - Scattered Showers
79°F 26°C
Scattered Showers
Early-Evening
Percy Weather - 2026-09-12 - Evening - Sunny
79°F 26°C
Sunny
Mild temperatures up to 79°F 26°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds switching from the SE to the E at 6 mph 9 km/h.

Sunday, September 13, 2026

Mid-Morning
Percy Weather - 2026-09-13 - Morning - Light Fog
78°F 26°C
Light Fog
Mid-Afternoon
Percy Weather - 2026-09-13 - Afternoon - Sunny
89°F 32°C
Sunny
Early-Evening
Percy Weather - 2026-09-13 - Evening - Sunny
79°F 27°C
Sunny
Warm and summery around 89°F 32°C (feels like 94°F 34°C), sunny through the afternoon, turning overcast this evening, with steady humidity and steady pressure. Winds building from SW at 6 mph 9 km/h to SE at 14 mph 23 km/h. Gusts up to 24 mph 38 km/h.

Monday, September 14, 2026

Mid-Morning
Percy Weather - 2026-09-14 - Morning - Overcast
65°F 18°C
Overcast
Mid-Afternoon
Percy Weather - 2026-09-14 - Afternoon - Sunny
76°F 24°C
Sunny
Early-Evening
Percy Weather - 2026-09-14 - Evening - Sunny
69°F 20°C
Sunny
Pleasant near 76°F 24°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds swinging from the NNE to the ENE at 8 mph 12 km/h.

Tuesday, September 15, 2026

Mid-Morning
Percy Weather - 2026-09-15 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Percy Weather - 2026-09-15 - Afternoon - Partly Cloudy
85°F 29°C
Partly Cloudy
Early-Evening
Percy Weather - 2026-09-15 - Evening - Partly Cloudy
82°F 28°C
Partly Cloudy
Balmy with temperatures reaching 85°F 29°C, partly cloudy throughout the day, with steady humidity and barometric pressure falling. Winds shifting from the SE to the SSE at 9 mph 14 km/h.

Wednesday, September 16, 2026

Mid-Morning
Percy Weather - 2026-09-16 - Morning - Light Showers
84°F 29°C
Light Showers
Mid-Afternoon
Percy Weather - 2026-09-16 - Afternoon - Sunny
100°F 38°C
Sunny
Early-Evening
Percy Weather - 2026-09-16 - Evening - Sunny
93°F 34°C
Sunny
Scorching hot near 100°F 38°C, early showers breaking for a drier afternoon, with lower humidity and steady pressure. Winds blowing from the SSW at 15 mph 25 km/h.

Thursday, September 17, 2026

Mid-Morning
Percy Weather - 2026-09-17 - Morning - Sunny
87°F 31°C
Sunny
Mid-Afternoon
Percy Weather - 2026-09-17 - Afternoon - Sunny
99°F 37°C
Sunny
Early-Evening
Percy Weather - 2026-09-17 - Evening - Partly Cloudy
81°F 27°C
Partly Cloudy
Hot temperatures near 99°F 37°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with increasing humidity and steady pressure. Winds switching from the SSW to the NNW at 11 mph 17 km/h.

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Weather by the Numbers

Fri, 4th
Percy IL Weather - Friday, Sep 4, 2026 - Sunny
Hi: 102°F 39°C
Lo: 77°F 25°C
Sunrise 06:31 AM
Sunset 07:24 PM
Wind NW 5 mph8 km/h
Dew Point 74°F23°C
uv Index 8
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 43%
Sat, 5th
Percy IL Weather - Saturday, Sep 5, 2026 - Sunny
Hi: 102°F 39°C
Lo: 75°F 24°C
Sunrise 06:32 AM
Sunset 07:22 PM
Wind NNW 7 mph11 km/h
Dew Point 65°F18°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 1% *
Humidity 35%
Sun, 6th
Percy IL Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 96°F 36°C
Lo: 71°F 22°C
Sunrise 06:33 AM
Sunset 07:21 PM
Wind NE 11 mph17 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 1% *
Humidity 45%
Mon, 7th
Percy IL Weather - Monday, Sep 7, 2026 - Overcast
Hi: 95°F 35°C
Lo: 62°F 16°C
Sunrise 06:33 AM
Sunset 07:19 PM
Wind NE 7 mph11 km/h
Dew Point 52°F11°C
uv Index 6
Barometric Pressure 30.06 in1018 mb
POP 9% *
Humidity 35%
Tue, 8th
Percy IL Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 99°F 37°C
Lo: 70°F 21°C
Sunrise 06:34 AM
Sunset 07:18 PM
Wind S 9 mph14 km/h
Dew Point 59°F15°C
uv Index 8
Barometric Pressure 30.06 in1018 mb
POP 0% *
Humidity 32%
Wed, 9th
Percy IL Weather - Wednesday, Sep 9, 2026 - Overcast
Hi: 95°F 35°C
Lo: 77°F 25°C
Sunrise 06:35 AM
Sunset 07:16 PM
Wind SW 11 mph18 km/h
Dew Point 62°F16°C
uv Index 7
Barometric Pressure 30.06 in1018 mb
POP 3% *
Humidity 40%
Thu, 10th
Percy IL Weather - Thursday, Sep 10, 2026 - Sunny
Hi: 92°F 33°C
Lo: 66°F 19°C
Sunrise 06:36 AM
Sunset 07:14 PM
Wind NE 7 mph12 km/h
Dew Point 50°F10°C
uv Index 7
Barometric Pressure 30.12 in1020 mb
POP 5% *
Humidity 32%
Fri, 11th
Percy IL Weather - Friday, Sep 11, 2026 - Light Rain Shower
Hi: 85°F 29°C
Lo: 64°F 18°C
Sunrise 06:37 AM
Sunset 07:13 PM
Wind ESE 11 mph18 km/h
Dew Point 63°F17°C
uv Index 5
Barometric Pressure 29.97 in1015 mb
POP 33% *
Humidity 75%
Sat, 12th
Percy IL Weather - Saturday, Sep 12, 2026 - Patchy Rain Nearby
Hi: 82°F 28°C
Lo: 64°F 18°C
Sunrise 06:38 AM
Sunset 07:11 PM
Wind SE 10 mph16 km/h
Dew Point 64°F18°C
uv Index 5
Barometric Pressure 29.91 in1013 mb
POP 30% *
Humidity 80%
Sun, 13th
Percy IL Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 89°F 32°C
Lo: 69°F 21°C
Sunrise 06:39 AM
Sunset 07:10 PM
Wind NW 8 mph12 km/h
Dew Point 68°F20°C
uv Index 8
Barometric Pressure 29.94 in1014 mb
POP 2% *
Humidity 55%
Mon, 14th
Percy IL Weather - Monday, Sep 14, 2026 - Sunny
Hi: 76°F 24°C
Lo: 59°F 15°C
Sunrise 06:39 AM
Sunset 07:08 PM
Wind NE 11 mph17 km/h
Dew Point 51°F10°C
uv Index 6
Barometric Pressure 30.18 in1022 mb
POP 2% *
Humidity 47%
Tue, 15th
Percy IL Weather - Tuesday, Sep 15, 2026 - Cloudy
Hi: 86°F 30°C
Lo: 56°F 13°C
Sunrise 06:40 AM
Sunset 07:07 PM
Wind SSE 8 mph12 km/h
Dew Point 46°F8°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 3% *
Humidity 33%
Wed, 16th
Percy IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 101°F 38°C
Lo: 68°F 20°C
Sunrise 06:41 AM
Sunset 07:05 PM
Wind SSW 14 mph23 km/h
Dew Point 62°F16°C
uv Index 9
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 33%
Thu, 17th
Percy IL Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 100°F 38°C
Lo: 72°F 22°C
Sunrise 06:42 AM
Sunset 07:03 PM
Wind SW 11 mph17 km/h
Dew Point 64°F18°C
uv Index 9
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 34%
* POP = Probability of Precipitation. Data for 12:00 PM.