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Smithboro IL Weather - Mostly Cloudy - 98°F
Mostly Cloudy
98°F
Updated 5:41 pm
Feels Like 98°F
Humidity 40%
Wind N/A N/A mph
Barometer  29.93 in
Dew Point 70°F
Smithboro IL Weather - Mostly Cloudy - 36°C
Mostly Cloudy
36°C
Updated 5:41 pm
Feels Like 37°C
Humidity 40%
Wind N/A 0 km/h
Barometer  101.4 kPa
Dew Point 21°C
Smithboro, IL Weather and Current Conditionssmithboro il weather forecast

Smithboro, IL Weather Forecast

Smithboro Illinois WeatherSmithboro, Illinois Weather Weather Forecast
14 day API weather forecast for Smithboro, Illinois. Note: The 7-day weather forecast for Smithboro, 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.
Smithboro, IL Weather Forecast Dated: 541 PM Thu Sep 03 2026
Expect a hot stretch with plenty of sunshine and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Thursday, September 3, 2026

Mid-Morning
Smithboro Weather - 2026-09-03 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
Smithboro Weather - 2026-09-03 - Afternoon - Sunny
100°F 38°C
Sunny
Early-Evening
Smithboro Weather - 2026-09-03 - Evening - Sunny
90°F 32°C
Sunny
Scorching heat reaching 100°F 38°C, feeling like 107°F 42°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds turning from the SW to the SSE at 8 mph 13 km/h.

Friday, September 4, 2026

Mid-Morning
Smithboro Weather - 2026-09-04 - Morning - Sunny
84°F 29°C
Sunny
Mid-Afternoon
Smithboro Weather - 2026-09-04 - Afternoon - Sunny
98°F 37°C
Sunny
Early-Evening
Smithboro Weather - 2026-09-04 - Evening - Sunny
92°F 34°C
Sunny
Hot and sweltering around 98°F 37°C (heat index 102°F 39°C), sunny throughout the day, with lower humidity and steady pressure. Winds switching from the WSW to the SSW at 7 mph 12 km/h.

Saturday, September 5, 2026

Mid-Morning
Smithboro Weather - 2026-09-05 - Morning - Scattered Showers
83°F 28°C
Scattered Showers
Mid-Afternoon
Smithboro Weather - 2026-09-05 - Afternoon - Sunny
96°F 36°C
Sunny
Early-Evening
Smithboro Weather - 2026-09-05 - Evening - Sunny
89°F 32°C
Sunny
Very hot with a high of 96°F 36°C, feeling closer to 101°F 38°C in the humidity, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the NW to the ENE at 8 mph 14 km/h.

Sunday, September 6, 2026

Mid-Morning
Smithboro Weather - 2026-09-06 - Morning - Sunny
77°F 25°C
Sunny
Mid-Afternoon
Smithboro Weather - 2026-09-06 - Afternoon - Sunny
90°F 32°C
Sunny
Early-Evening
Smithboro Weather - 2026-09-06 - Evening - Sunny
80°F 27°C
Sunny
Hot temperatures near 90°F 32°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds out of the NE at 13 mph 20 km/h. Gusts up to 22 mph 35 km/h.

Monday, September 7, 2026

Mid-Morning
Smithboro Weather - 2026-09-07 - Morning - Sunny
69°F 20°C
Sunny
Mid-Afternoon
Smithboro Weather - 2026-09-07 - Afternoon - Sunny
87°F 31°C
Sunny
Early-Evening
Smithboro Weather - 2026-09-07 - Evening - Partly Cloudy
79°F 26°C
Partly Cloudy
Very warm with a high of 87°F 31°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds blowing from the NE at 9 mph 14 km/h.

Tuesday, September 8, 2026

Mid-Morning
Smithboro Weather - 2026-09-08 - Morning - Sunny
76°F 24°C
Sunny
Mid-Afternoon
Smithboro Weather - 2026-09-08 - Afternoon - Sunny
95°F 35°C
Sunny
Early-Evening
Smithboro Weather - 2026-09-08 - Evening - Sunny
91°F 33°C
Sunny
Very hot with temperatures reaching 95°F 35°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds SSW at 8 mph 13 km/h.

Wednesday, September 9, 2026

Mid-Morning
Smithboro Weather - 2026-09-09 - Morning - Sunny
88°F 31°C
Sunny
Mid-Afternoon
Smithboro Weather - 2026-09-09 - Afternoon - Sunny
104°F 40°C
Sunny
Early-Evening
Smithboro Weather - 2026-09-09 - Evening - Sunny
91°F 33°C
Sunny
Dangerously hot temperatures around 104°F 40°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the SW to the NE at 9 mph 15 km/h.

Thursday, September 10, 2026

Mid-Morning
Smithboro Weather - 2026-09-10 - Morning - Sunny
85°F 29°C
Sunny
Mid-Afternoon
Smithboro Weather - 2026-09-10 - Afternoon - Sunny
103°F 40°C
Sunny
Early-Evening
Smithboro Weather - 2026-09-10 - Evening - Sunny
97°F 36°C
Sunny
Dangerously hot with a high of 103°F 40°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling. Winds moving from the WSW to the ESE at 9 mph 14 km/h.

Friday, September 11, 2026

Mid-Morning
Smithboro Weather - 2026-09-11 - Morning - Sunny
90°F 32°C
Sunny
Mid-Afternoon
Smithboro Weather - 2026-09-11 - Afternoon - Sunny
104°F 40°C
Sunny
Early-Evening
Smithboro Weather - 2026-09-11 - Evening - Partly Cloudy
95°F 35°C
Partly Cloudy
Scorching hot near 104°F 40°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds swinging from the WSW to the SSE at 9 mph 14 km/h.

Saturday, September 12, 2026

Mid-Morning
Smithboro Weather - 2026-09-12 - Morning - Sunny
90°F 32°C
Sunny
Mid-Afternoon
Smithboro Weather - 2026-09-12 - Afternoon - Sunny
104°F 40°C
Sunny
Early-Evening
Smithboro Weather - 2026-09-12 - Evening - Partly Cloudy
96°F 36°C
Partly Cloudy
Sweltering heat reaching 104°F 40°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds out of the SW at 14 mph 22 km/h.

Sunday, September 13, 2026

Mid-Morning
Smithboro Weather - 2026-09-13 - Morning - Overcast
89°F 32°C
Overcast
Mid-Afternoon
Smithboro Weather - 2026-09-13 - Afternoon - Sunny
100°F 38°C
Sunny
Early-Evening
Smithboro Weather - 2026-09-13 - Evening - Scattered Showers
83°F 29°C
Scattered Showers
Dangerously hot temperatures around 100°F 38°C, scattered downpours possible, with increasing humidity and steady pressure. Winds turning from the WSW to the ESE at 13 mph 20 km/h. Gusts up to 22 mph 36 km/h.

Monday, September 14, 2026

Mid-Morning
Smithboro Weather - 2026-09-14 - Morning - Light Showers
81°F 27°C
Light Showers
Mid-Afternoon
Smithboro Weather - 2026-09-14 - Afternoon - Overcast
99°F 37°C
Overcast
Early-Evening
Smithboro Weather - 2026-09-14 - Evening - Overcast
82°F 28°C
Overcast
Hot and sweltering around 99°F 37°C, morning showers, giving way to clearing skies, with steady humidity and barometric pressure falling. Winds switching from the SSW to the S at 10 mph 15 km/h. Gusts up to 20 mph 32 km/h.

Tuesday, September 15, 2026

Mid-Morning
Smithboro Weather - 2026-09-15 - Morning - Sunny
67°F 19°C
Sunny
Mid-Afternoon
Smithboro Weather - 2026-09-15 - Afternoon - Sunny
81°F 27°C
Sunny
Early-Evening
Smithboro Weather - 2026-09-15 - Evening - Sunny
71°F 22°C
Sunny
Quite warm around 81°F 27°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the WNW to the N at 8 mph 13 km/h.

Wednesday, September 16, 2026

Mid-Morning
Smithboro Weather - 2026-09-16 - Morning - Sunny
65°F 18°C
Sunny
Mid-Afternoon
Smithboro Weather - 2026-09-16 - Afternoon - Sunny
79°F 26°C
Sunny
Early-Evening
Smithboro Weather - 2026-09-16 - Evening - Sunny
71°F 22°C
Sunny
Mild temperatures up to 79°F 26°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the NNW to the NE at 8 mph 13 km/h.

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Weather by the Numbers

Thu, 3rd
Smithboro IL Weather - Thursday, Sep 3, 2026 - Sunny
Hi: 100°F 38°C
Lo: 73°F 23°C
Sunrise 06:28 AM
Sunset 07:25 PM
Wind SW 9 mph15 km/h
Dew Point 74°F23°C
uv Index 8
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 46%
Fri, 4th
Smithboro IL Weather - Friday, Sep 4, 2026 - Sunny
Hi: 98°F 37°C
Lo: 79°F 26°C
Sunrise 06:29 AM
Sunset 07:23 PM
Wind W 9 mph14 km/h
Dew Point 67°F19°C
uv Index 8
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 42%
Sat, 5th
Smithboro IL Weather - Saturday, Sep 5, 2026 - Sunny
Hi: 97°F 36°C
Lo: 79°F 26°C
Sunrise 06:30 AM
Sunset 07:22 PM
Wind NW 8 mph13 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 2% *
Humidity 42%
Sun, 6th
Smithboro IL Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 90°F 32°C
Lo: 70°F 21°C
Sunrise 06:31 AM
Sunset 07:20 PM
Wind ENE 11 mph18 km/h
Dew Point 64°F18°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 47%
Mon, 7th
Smithboro IL Weather - Monday, Sep 7, 2026 - Partly Cloudy
Hi: 87°F 31°C
Lo: 61°F 16°C
Sunrise 06:32 AM
Sunset 07:19 PM
Wind ENE 6 mph10 km/h
Dew Point 51°F10°C
uv Index 7
Barometric Pressure 30.09 in1019 mb
POP 2% *
Humidity 35%
Tue, 8th
Smithboro IL Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 97°F 36°C
Lo: 67°F 19°C
Sunrise 06:33 AM
Sunset 07:17 PM
Wind SSW 8 mph13 km/h
Dew Point 55°F13°C
uv Index 8
Barometric Pressure 30.03 in1017 mb
POP 1% *
Humidity 34%
Wed, 9th
Smithboro IL Weather - Wednesday, Sep 9, 2026 - Sunny
Hi: 105°F 40°C
Lo: 80°F 27°C
Sunrise 06:34 AM
Sunset 07:16 PM
Wind W 15 mph24 km/h
Dew Point 59°F15°C
uv Index 9
Barometric Pressure 29.97 in1015 mb
POP 0% *
Humidity 27%
Thu, 10th
Smithboro IL Weather - Thursday, Sep 10, 2026 - Partly Cloudy
Hi: 105°F 41°C
Lo: 76°F 24°C
Sunrise 06:35 AM
Sunset 07:14 PM
Wind WNW 8 mph13 km/h
Dew Point 61°F16°C
uv Index 9
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 32%
Fri, 11th
Smithboro IL Weather - Friday, Sep 11, 2026 - Sunny
Hi: 105°F 40°C
Lo: 82°F 28°C
Sunrise 06:35 AM
Sunset 07:12 PM
Wind W 10 mph16 km/h
Dew Point 60°F15°C
uv Index 9
Barometric Pressure 29.85 in1011 mb
POP 1% *
Humidity 27%
Sat, 12th
Smithboro IL Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 104°F 40°C
Lo: 81°F 27°C
Sunrise 06:36 AM
Sunset 07:11 PM
Wind SW 12 mph19 km/h
Dew Point 56°F13°C
uv Index 9
Barometric Pressure 29.85 in1011 mb
POP 0% *
Humidity 24%
Sun, 13th
Smithboro IL Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 100°F 38°C
Lo: 75°F 24°C
Sunrise 06:37 AM
Sunset 07:09 PM
Wind SW 10 mph16 km/h
Dew Point 60°F15°C
uv Index 9
Barometric Pressure 29.91 in1013 mb
POP 1% *
Humidity 29%
Mon, 14th
Smithboro IL Weather - Monday, Sep 14, 2026 - Partly Cloudy
Hi: 100°F 38°C
Lo: 70°F 21°C
Sunrise 06:38 AM
Sunset 07:07 PM
Wind SW 13 mph22 km/h
Dew Point 62°F17°C
uv Index 9
Barometric Pressure 29.91 in1013 mb
POP 6% *
Humidity 35%
Tue, 15th
Smithboro IL Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 81°F 27°C
Lo: 61°F 16°C
Sunrise 06:39 AM
Sunset 07:06 PM
Wind WNW 15 mph24 km/h
Dew Point 47°F8°C
uv Index 6
Barometric Pressure 29.88 in1012 mb
POP 1% *
Humidity 37%
Wed, 16th
Smithboro IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 80°F 26°C
Lo: 58°F 15°C
Sunrise 06:40 AM
Sunset 07:04 PM
Wind NW 6 mph9 km/h
Dew Point 46°F8°C
uv Index 6
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 37%
* POP = Probability of Precipitation. Data for 12:00 PM.