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Rio IL Weather - Clear - 92°F
Clear
92°F
Updated 3:48 pm
Feels Like 106°F
Humidity 60%
Wind SSW 5 mph
Barometer  29.93 in
Dew Point 76°F
Rio IL Weather - Clear - 33°C
Clear
33°C
Updated 3:48 pm
Feels Like 41°C
Humidity 60%
Wind SSW 8 km/h
Barometer  101.4 kPa
Dew Point 25°C
Rio, IL Weather and Current Conditionsrio il weather forecast

Rio, IL Weather Forecast

Rio Illinois WeatherRio, Illinois Weather Weather Forecast
14 day API weather forecast for Rio, Illinois. Note: The 7-day weather forecast for Rio, IL is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Rio, IL Weather Forecast Dated: 348 PM Thu Sep 03 2026
Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Thursday, September 3, 2026

Mid-Morning
Rio Weather - 2026-09-03 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
Rio Weather - 2026-09-03 - Afternoon - Sunny
95°F 35°C
Sunny
Early-Evening
Rio Weather - 2026-09-03 - Evening - Sunny
87°F 31°C
Sunny
Sizzling hot near 95°F 35°C with a heat index reaching 107°F 42°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the SSW to the SSE at 10 mph 16 km/h. Gusts up to 21 mph 34 km/h.

Friday, September 4, 2026

Mid-Morning
Rio Weather - 2026-09-04 - Morning - Scattered Showers
82°F 28°C
Scattered Showers
Mid-Afternoon
Rio Weather - 2026-09-04 - Afternoon - Sunny
95°F 35°C
Sunny
Early-Evening
Rio Weather - 2026-09-04 - Evening - Nearby Thunderstorms
90°F 32°C
Nearby Thunderstorms
Hot and sweltering around 95°F 35°C (heat index 101°F 38°C), scattered downpours possible, with steady humidity and steady pressure. Winds switching from the WSW to the NNE at 6 mph 9 km/h.

Saturday, September 5, 2026

Mid-Morning
Rio Weather - 2026-09-05 - Morning - Sunny
74°F 24°C
Sunny
Mid-Afternoon
Rio Weather - 2026-09-05 - Afternoon - Sunny
90°F 32°C
Sunny
Early-Evening
Rio Weather - 2026-09-05 - Evening - Sunny
83°F 28°C
Sunny
Very hot with a high of 90°F 32°C, feeling closer to 94°F 35°C in the humidity, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the NE to the E at 9 mph 14 km/h.

Sunday, September 6, 2026

Mid-Morning
Rio Weather - 2026-09-06 - Morning - Sunny
71°F 22°C
Sunny
Mid-Afternoon
Rio Weather - 2026-09-06 - Afternoon - Cloudy
82°F 28°C
Cloudy
Early-Evening
Rio Weather - 2026-09-06 - Evening - Sunny
75°F 24°C
Sunny
Warm temperatures up to 82°F 28°C, sunny in the morning, overcast in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds out of the E at 12 mph 19 km/h.

Monday, September 7, 2026

Mid-Morning
Rio Weather - 2026-09-07 - Morning - Sunny
67°F 20°C
Sunny
Mid-Afternoon
Rio Weather - 2026-09-07 - Afternoon - Cloudy
80°F 27°C
Cloudy
Early-Evening
Rio Weather - 2026-09-07 - Evening - Overcast
75°F 24°C
Overcast
Very warm with a high of 80°F 27°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds blowing from the ESE at 11 mph 18 km/h. Gusts up to 20 mph 33 km/h.

Tuesday, September 8, 2026

Mid-Morning
Rio Weather - 2026-09-08 - Morning - Overcast
72°F 22°C
Overcast
Mid-Afternoon
Rio Weather - 2026-09-08 - Afternoon - Overcast
88°F 31°C
Overcast
Early-Evening
Rio Weather - 2026-09-08 - Evening - Sunny
90°F 32°C
Sunny
Warm and summery near 88°F 31°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds S at 15 mph 24 km/h. Gusts up to 34 mph 55 km/h.

Wednesday, September 9, 2026

Mid-Morning
Rio Weather - 2026-09-09 - Morning - Cloudy
80°F 27°C
Cloudy
Mid-Afternoon
Rio Weather - 2026-09-09 - Afternoon - Cloudy
91°F 33°C
Cloudy
Early-Evening
Rio Weather - 2026-09-09 - Evening - Sunny
81°F 28°C
Sunny
Hot and sweltering around 91°F 33°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds switching from the NW to the NE at 7 mph 12 km/h.

Thursday, September 10, 2026

Mid-Morning
Rio Weather - 2026-09-10 - Morning - Partly Cloudy
73°F 23°C
Partly Cloudy
Mid-Afternoon
Rio Weather - 2026-09-10 - Afternoon - Overcast
85°F 30°C
Overcast
Early-Evening
Rio Weather - 2026-09-10 - Evening - Cloudy
81°F 28°C
Cloudy
Quite warm around 85°F 30°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds moving from the ESE to the E at 11 mph 16 km/h. Gusts up to 20 mph 33 km/h.

Friday, September 11, 2026

Mid-Morning
Rio Weather - 2026-09-11 - Morning - Sunny
74°F 23°C
Sunny
Mid-Afternoon
Rio Weather - 2026-09-11 - Afternoon - Sunny
89°F 32°C
Sunny
Early-Evening
Rio Weather - 2026-09-11 - Evening - Partly Cloudy
82°F 28°C
Partly Cloudy
Warm temperatures up to 89°F 32°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds E at 12 mph 20 km/h. Gusts up to 27 mph 44 km/h.

Saturday, September 12, 2026

Mid-Morning
Rio Weather - 2026-09-12 - Morning - Sunny
84°F 29°C
Sunny
Mid-Afternoon
Rio Weather - 2026-09-12 - Afternoon - Sunny
100°F 38°C
Sunny
Early-Evening
Rio Weather - 2026-09-12 - Evening - Overcast
95°F 35°C
Overcast
Sweltering heat reaching 100°F 38°C, sunny in the morning, becoming cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds shifting from the S to the SSW at 9 mph 14 km/h.

Sunday, September 13, 2026

Mid-Morning
Rio Weather - 2026-09-13 - Morning - Partly Cloudy
83°F 28°C
Partly Cloudy
Mid-Afternoon
Rio Weather - 2026-09-13 - Afternoon - Sunny
96°F 35°C
Sunny
Early-Evening
Rio Weather - 2026-09-13 - Evening - Overcast
79°F 26°C
Overcast
Very hot with temperatures reaching 96°F 35°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with increasing humidity and steady pressure. Winds turning from the SW to the S at 16 mph 25 km/h. Gusts up to 34 mph 55 km/h.

Monday, September 14, 2026

Mid-Morning
Rio Weather - 2026-09-14 - Morning - Light Showers
73°F 23°C
Light Showers
Mid-Afternoon
Rio Weather - 2026-09-14 - Afternoon - Overcast
77°F 25°C
Overcast
Early-Evening
Rio Weather - 2026-09-14 - Evening - Scattered Showers
73°F 23°C
Scattered Showers
Comfortable with temperatures reaching 77°F 25°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds switching from the SSW to the SW at 9 mph 14 km/h. Gusts up to 20 mph 32 km/h.

Tuesday, September 15, 2026

Mid-Morning
Rio Weather - 2026-09-15 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Rio Weather - 2026-09-15 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Rio Weather - 2026-09-15 - Evening - Sunny
66°F 19°C
Sunny
Enjoyable around 72°F 22°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the WNW to the NNW at 9 mph 14 km/h.

Wednesday, September 16, 2026

Mid-Morning
Rio Weather - 2026-09-16 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Rio Weather - 2026-09-16 - Afternoon - Partly Cloudy
71°F 21°C
Partly Cloudy
Early-Evening
Rio Weather - 2026-09-16 - Evening - Overcast
67°F 19°C
Overcast
Mild temperatures up to 71°F 21°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds swinging from the NNW to the ESE at 6 mph 10 km/h.

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Weather by the Numbers

Thu, 3rd
Rio IL Weather - Thursday, Sep 3, 2026 - Sunny
Hi: 95°F 35°C
Lo: 75°F 24°C
Sunrise 06:30 AM
Sunset 07:31 PM
Wind WSW 10 mph17 km/h
Dew Point 75°F24°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 2% *
Humidity 55%
Fri, 4th
Rio IL Weather - Friday, Sep 4, 2026 - Sunny
Hi: 97°F 36°C
Lo: 75°F 24°C
Sunrise 06:31 AM
Sunset 07:30 PM
Wind W 8 mph13 km/h
Dew Point 67°F20°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 3% *
Humidity 48%
Sat, 5th
Rio IL Weather - Saturday, Sep 5, 2026 - Sunny
Hi: 90°F 32°C
Lo: 71°F 22°C
Sunrise 06:32 AM
Sunset 07:28 PM
Wind NE 6 mph10 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 29.94 in1014 mb
POP 2% *
Humidity 53%
Sun, 6th
Rio IL Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 82°F 28°C
Lo: 67°F 20°C
Sunrise 06:33 AM
Sunset 07:26 PM
Wind E 10 mph16 km/h
Dew Point 64°F18°C
uv Index 7
Barometric Pressure 30.06 in1018 mb
POP 3% *
Humidity 58%
Mon, 7th
Rio IL Weather - Monday, Sep 7, 2026 - Sunny
Hi: 80°F 27°C
Lo: 63°F 17°C
Sunrise 06:34 AM
Sunset 07:25 PM
Wind SE 10 mph16 km/h
Dew Point 57°F14°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 2% *
Humidity 51%
Tue, 8th
Rio IL Weather - Tuesday, Sep 8, 2026 - Patchy Rain Nearby
Hi: 92°F 33°C
Lo: 67°F 20°C
Sunrise 06:35 AM
Sunset 07:23 PM
Wind S 14 mph23 km/h
Dew Point 58°F15°C
uv Index 6
Barometric Pressure 30 in1016 mb
POP 11% *
Humidity 50%
Wed, 9th
Rio IL Weather - Wednesday, Sep 9, 2026 - Overcast
Hi: 92°F 33°C
Lo: 74°F 23°C
Sunrise 06:36 AM
Sunset 07:21 PM
Wind NNW 11 mph18 km/h
Dew Point 58°F14°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 7% *
Humidity 38%
Thu, 10th
Rio IL Weather - Thursday, Sep 10, 2026 - Overcast
Hi: 86°F 30°C
Lo: 70°F 21°C
Sunrise 06:37 AM
Sunset 07:19 PM
Wind ESE 10 mph15 km/h
Dew Point 60°F15°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 11% *
Humidity 49%
Fri, 11th
Rio IL Weather - Friday, Sep 11, 2026 - Sunny
Hi: 89°F 32°C
Lo: 69°F 21°C
Sunrise 06:38 AM
Sunset 07:18 PM
Wind ESE 9 mph15 km/h
Dew Point 62°F17°C
uv Index 7
Barometric Pressure 29.85 in1011 mb
POP 2% *
Humidity 49%
Sat, 12th
Rio IL Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 101°F 39°C
Lo: 75°F 24°C
Sunrise 06:39 AM
Sunset 07:16 PM
Wind SSW 9 mph14 km/h
Dew Point 60°F16°C
uv Index 8
Barometric Pressure 29.83 in1010 mb
POP 1% *
Humidity 32%
Sun, 13th
Rio IL Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 96°F 36°C
Lo: 74°F 23°C
Sunrise 06:40 AM
Sunset 07:14 PM
Wind WSW 14 mph23 km/h
Dew Point 61°F16°C
uv Index 8
Barometric Pressure 29.88 in1012 mb
POP 1% *
Humidity 37%
Mon, 14th
Rio IL Weather - Monday, Sep 14, 2026 - Light Rain Shower
Hi: 79°F 26°C
Lo: 66°F 19°C
Sunrise 06:41 AM
Sunset 07:13 PM
Wind SW 9 mph14 km/h
Dew Point 69°F21°C
uv Index 5
Barometric Pressure 29.91 in1013 mb
POP 38% *
Humidity 87%
Tue, 15th
Rio IL Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 72°F 22°C
Lo: 56°F 13°C
Sunrise 06:42 AM
Sunset 07:11 PM
Wind WNW 19 mph30 km/h
Dew Point 40°F5°C
uv Index 6
Barometric Pressure 29.83 in1010 mb
POP 1% *
Humidity 34%
Wed, 16th
Rio IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 71°F 22°C
Lo: 53°F 12°C
Sunrise 06:43 AM
Sunset 07:09 PM
Wind NNW 9 mph15 km/h
Dew Point 45°F7°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 2% *
Humidity 45%
* POP = Probability of Precipitation. Data for 12:00 PM.