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Decorra IL Weather - Lightning Observed - 75°F
Lightning Observed
75°F
Updated 2:31 am
Feels Like 77°F
Humidity 84%
Wind N 9 mph
Barometer  30.08 in
Dew Point 70°F
Decorra IL Weather - Lightning Observed - 24°C
Lightning Observed
24°C
Updated 2:31 am
Feels Like 25°C
Humidity 84%
Wind N 14 km/h
Barometer  101.8 kPa
Dew Point 21°C
Decorra, IL Weather and Current Conditionsdecorra il weather forecast

Decorra, IL Weather Forecast

Decorra Illinois WeatherDecorra, Illinois Weather Weather Forecast
14 Day API Decorra, IL Weather Forecast. Note: Our 7 day Decorra, 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.
Decorra, IL Weather Forecast Dated: 231 AM Wed Sep 09 2026
Expect a very warm period with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.

Wednesday, September 9, 2026

Mid-Morning
Decorra Weather - 2026-09-09 - Morning - Heavy Rain
69°F 21°C
Heavy Rain
Mid-Afternoon
Decorra Weather - 2026-09-09 - Afternoon - Light Showers
80°F 26°C
Light Showers
Early-Evening
Decorra Weather - 2026-09-09 - Evening - Overcast
74°F 24°C
Overcast
Warm and summery around 80°F 26°C (feels like 83°F 28°C), intermittent showers through midday, easing by evening, with steady humidity and steady pressure. Winds turning from the WSW to the S at 4 mph 6 km/h.

Thursday, September 10, 2026

Mid-Morning
Decorra Weather - 2026-09-10 - Morning - Light Showers
71°F 21°C
Light Showers
Mid-Afternoon
Decorra Weather - 2026-09-10 - Afternoon - Light Showers
77°F 25°C
Light Showers
Early-Evening
Decorra Weather - 2026-09-10 - Evening - Scattered Showers
73°F 23°C
Scattered Showers
Comfortable with temperatures reaching 77°F 25°C, scattered downpours possible, with steady humidity and steady pressure.

Friday, September 11, 2026

Mid-Morning
Decorra Weather - 2026-09-11 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Decorra Weather - 2026-09-11 - Afternoon - Sunny
82°F 28°C
Sunny
Early-Evening
Decorra Weather - 2026-09-11 - Evening - Sunny
79°F 26°C
Sunny
Quite warm around 82°F 28°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds blowing from the SSE at 8 mph 13 km/h. Gusts up to 23 mph 37 km/h.

Saturday, September 12, 2026

Mid-Morning
Decorra Weather - 2026-09-12 - Morning - Scattered Showers
70°F 21°C
Scattered Showers
Mid-Afternoon
Decorra Weather - 2026-09-12 - Afternoon - Scattered Showers
80°F 27°C
Scattered Showers
Early-Evening
Decorra Weather - 2026-09-12 - Evening - Overcast
75°F 24°C
Overcast
Warm temperatures up to 80°F 27°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds moving from the WSW to the ENE at 6 mph 9 km/h.

Sunday, September 13, 2026

Mid-Morning
Decorra Weather - 2026-09-13 - Morning - Overcast
71°F 21°C
Overcast
Mid-Afternoon
Decorra Weather - 2026-09-13 - Afternoon - Overcast
82°F 28°C
Overcast
Early-Evening
Decorra Weather - 2026-09-13 - Evening - Overcast
81°F 27°C
Overcast
Quite warm reaching 82°F 28°C, feeling like 85°F 29°C during peak afternoon, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure.

Monday, September 14, 2026

Mid-Morning
Decorra Weather - 2026-09-14 - Morning - Light Showers
71°F 22°C
Light Showers
Mid-Afternoon
Decorra Weather - 2026-09-14 - Afternoon - Light Showers
87°F 31°C
Light Showers
Early-Evening
Decorra Weather - 2026-09-14 - Evening - Sunny
80°F 27°C
Sunny
Very warm near 87°F 31°C, though humidity makes it feel like 92°F 33°C, showers through the afternoon, tapering off by evening, with lower humidity and steady pressure. Winds swinging from the SSW to the E at 10 mph 16 km/h.

Tuesday, September 15, 2026

Mid-Morning
Decorra Weather - 2026-09-15 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Decorra Weather - 2026-09-15 - Afternoon - Sunny
71°F 22°C
Sunny
Early-Evening
Decorra Weather - 2026-09-15 - Evening - Sunny
68°F 20°C
Sunny
Comfortable with temperatures reaching 71°F 22°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure rising. Winds shifting from the NNW to the SE at 8 mph 12 km/h.

Wednesday, September 16, 2026

Mid-Morning
Decorra Weather - 2026-09-16 - Morning - Partly Cloudy
62°F 16°C
Partly Cloudy
Mid-Afternoon
Decorra Weather - 2026-09-16 - Afternoon - Overcast
74°F 23°C
Overcast
Early-Evening
Decorra Weather - 2026-09-16 - Evening - Cloudy
71°F 22°C
Cloudy
Enjoyable around 74°F 23°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds turning from the E to the ESE at 10 mph 16 km/h. Gusts up to 22 mph 36 km/h.

Thursday, September 17, 2026

Mid-Morning
Decorra Weather - 2026-09-17 - Morning - Sunny
72°F 22°C
Sunny
Mid-Afternoon
Decorra Weather - 2026-09-17 - Afternoon - Sunny
93°F 34°C
Sunny
Early-Evening
Decorra Weather - 2026-09-17 - Evening - Sunny
89°F 32°C
Sunny
Very hot with a high of 93°F 34°C, feeling closer to 97°F 36°C in the humidity, sunny throughout the day, with lower humidity and barometric pressure falling. Winds switching from the S to the SSW at 9 mph 15 km/h.

Friday, September 18, 2026

Mid-Morning
Decorra Weather - 2026-09-18 - Morning - Sunny
83°F 28°C
Sunny
Mid-Afternoon
Decorra Weather - 2026-09-18 - Afternoon - Partly Cloudy
97°F 36°C
Partly Cloudy
Early-Evening
Decorra Weather - 2026-09-18 - Evening - Cloudy
89°F 32°C
Cloudy
Sizzling hot near 97°F 36°C with a heat index reaching 100°F 38°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds moving from the SW to the N at 6 mph 9 km/h.

Saturday, September 19, 2026

Mid-Morning
Decorra Weather - 2026-09-19 - Morning - Cloudy
69°F 20°C
Cloudy
Mid-Afternoon
Decorra Weather - 2026-09-19 - Afternoon - Cloudy
85°F 29°C
Cloudy
Early-Evening
Decorra Weather - 2026-09-19 - Evening - Sunny
72°F 23°C
Sunny
Quite warm reaching 85°F 29°C, feeling like 88°F 31°C during peak afternoon, partly cloudy through the afternoon, turning overcast this evening, with steady humidity and steady pressure. Winds swinging from the E to the SSE at 9 mph 14 km/h.

Sunday, September 20, 2026

Mid-Morning
Decorra Weather - 2026-09-20 - Morning - Light Showers
69°F 21°C
Light Showers
Mid-Afternoon
Decorra Weather - 2026-09-20 - Afternoon - Scattered Showers
92°F 34°C
Scattered Showers
Early-Evening
Decorra Weather - 2026-09-20 - Evening - Partly Cloudy
88°F 31°C
Partly Cloudy
Very hot with a high of 92°F 34°C, feeling closer to 95°F 35°C in the humidity, locally heavy downpours at times, with lower humidity and barometric pressure falling. Winds shifting from the ESE to the SSW at 9 mph 14 km/h.

Monday, September 21, 2026

Mid-Morning
Decorra Weather - 2026-09-21 - Morning - Scattered Showers
71°F 22°C
Scattered Showers
Mid-Afternoon
Decorra Weather - 2026-09-21 - Afternoon - Overcast
68°F 20°C
Overcast
Early-Evening
Decorra Weather - 2026-09-21 - Evening - Scattered Showers
64°F 18°C
Scattered Showers
Enjoyable around 68°F 20°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure rising. Winds turning from the WNW to the NNW at 8 mph 12 km/h.

Tuesday, September 22, 2026

Mid-Morning
Decorra Weather - 2026-09-22 - Morning - Overcast
58°F 15°C
Overcast
Mid-Afternoon
Decorra Weather - 2026-09-22 - Afternoon - Overcast
65°F 19°C
Overcast
Early-Evening
Decorra Weather - 2026-09-22 - Evening - Overcast
62°F 17°C
Overcast
Mildly cool near 65°F 19°C, overcast throughout the day, with steady humidity and steady pressure. Winds switching from the NE to the E at 8 mph 13 km/h.

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Weather by the Numbers

Wed, 9th
Decorra IL Weather - Wednesday, Sep 9, 2026 - Light Rain Shower
Hi: 82°F 28°C
Lo: 68°F 20°C
Sunrise 06:38 AM
Sunset 07:23 PM
Wind SW 8 mph13 km/h
Dew Point 69°F21°C
uv Index 2
Barometric Pressure 29.97 in1015 mb
POP 52% *
Humidity 74%
Thu, 10th
Decorra IL Weather - Thursday, Sep 10, 2026 - Patchy Rain Nearby
Hi: 77°F 25°C
Lo: 67°F 19°C
Sunrise 06:39 AM
Sunset 07:21 PM
Wind NE 6 mph10 km/h
Dew Point 69°F20°C
uv Index 5
Barometric Pressure 29.97 in1015 mb
POP 33% *
Humidity 84%
Fri, 11th
Decorra IL Weather - Friday, Sep 11, 2026 - Sunny
Hi: 83°F 28°C
Lo: 59°F 15°C
Sunrise 06:40 AM
Sunset 07:19 PM
Wind SSE 9 mph14 km/h
Dew Point 58°F14°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 2% *
Humidity 54%
Sat, 12th
Decorra IL Weather - Saturday, Sep 12, 2026 - Overcast
Hi: 80°F 27°C
Lo: 69°F 21°C
Sunrise 06:41 AM
Sunset 07:17 PM
Wind W 9 mph15 km/h
Dew Point 64°F18°C
uv Index 4
Barometric Pressure 29.94 in1014 mb
POP 14% *
Humidity 61%
Sun, 13th
Decorra IL Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 83°F 28°C
Lo: 64°F 18°C
Sunrise 06:42 AM
Sunset 07:16 PM
Wind S 9 mph15 km/h
Dew Point 65°F19°C
uv Index 6
Barometric Pressure 29.94 in1014 mb
POP 15% *
Humidity 64%
Mon, 14th
Decorra IL Weather - Monday, Sep 14, 2026 - Light Rain Shower
Hi: 90°F 32°C
Lo: 70°F 21°C
Sunrise 06:43 AM
Sunset 07:14 PM
Wind SW 13 mph20 km/h
Dew Point 69°F21°C
uv Index 6
Barometric Pressure 29.88 in1012 mb
POP 50% *
Humidity 74%
Tue, 15th
Decorra IL Weather - Tuesday, Sep 15, 2026 - Patchy Rain Nearby
Hi: 74°F 23°C
Lo: 62°F 17°C
Sunrise 06:44 AM
Sunset 07:12 PM
Wind NNW 13 mph21 km/h
Dew Point 56°F14°C
uv Index 4
Barometric Pressure 30.09 in1019 mb
POP 7% *
Humidity 68%
Wed, 16th
Decorra IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 75°F 24°C
Lo: 57°F 14°C
Sunrise 06:45 AM
Sunset 07:11 PM
Wind ESE 10 mph16 km/h
Dew Point 52°F11°C
uv Index 6
Barometric Pressure 30.3 in1026 mb
POP 8% *
Humidity 55%
Thu, 17th
Decorra IL Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 96°F 35°C
Lo: 67°F 19°C
Sunrise 06:46 AM
Sunset 07:09 PM
Wind SSW 13 mph22 km/h
Dew Point 61°F16°C
uv Index 7
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 47%
Fri, 18th
Decorra IL Weather - Friday, Sep 18, 2026 - Sunny
Hi: 99°F 37°C
Lo: 79°F 26°C
Sunrise 06:47 AM
Sunset 07:07 PM
Wind WSW 11 mph18 km/h
Dew Point 65°F18°C
uv Index 8
Barometric Pressure 30.03 in1017 mb
POP 3% *
Humidity 42%
Sat, 19th
Decorra IL Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 86°F 30°C
Lo: 63°F 17°C
Sunrise 06:48 AM
Sunset 07:06 PM
Wind ESE 9 mph14 km/h
Dew Point 65°F19°C
uv Index 7
Barometric Pressure 30 in1016 mb
POP 9% *
Humidity 65%
Sun, 20th
Decorra IL Weather - Sunday, Sep 20, 2026 - Light Rain Shower
Hi: 95°F 35°C
Lo: 65°F 19°C
Sunrise 06:49 AM
Sunset 07:04 PM
Wind SSE 11 mph18 km/h
Dew Point 67°F20°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 19% *
Humidity 64%
Mon, 21st
Decorra IL Weather - Monday, Sep 21, 2026 - Overcast
Hi: 82°F 28°C
Lo: 61°F 16°C
Sunrise 06:50 AM
Sunset 07:02 PM
Wind NNW 13 mph20 km/h
Dew Point 58°F15°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 18% *
Humidity 70%
Tue, 22nd
Decorra IL Weather - Tuesday, Sep 22, 2026 - Overcast
Hi: 66°F 19°C
Lo: 57°F 14°C
Sunrise 06:51 AM
Sunset 07:00 PM
Wind ENE 9 mph15 km/h
Dew Point 46°F8°C
uv Index 4
Barometric Pressure 30.33 in1027 mb
POP 13% *
Humidity 55%
* POP = Probability of Precipitation. Data for 12:00 PM.