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Dundas IL Weather - Clear - 77°F
Clear
77°F
Updated 8:09 am
Feels Like 78°F
Humidity 81%
Wind S 8 mph
Barometer  30.1 in
Dew Point 71°F
Dundas IL Weather - Clear - 25°C
Clear
25°C
Updated 8:09 am
Feels Like 25°C
Humidity 81%
Wind S 13 km/h
Barometer  101.9 kPa
Dew Point 22°C
Dundas, IL Weather and Current Conditionsdundas il weather forecast

Dundas, IL Weather Forecast

Dundas Illinois WeatherDundas, Illinois Weather Weather Forecast
14 day API Dundas, IL weather forecast. Note. Our 7-day weather forecast for Dundas, Illinois is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Dundas, IL Weather Forecast Dated: 809 AM Wed Sep 09 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. Isolated storms at times.

Wednesday, September 9, 2026

Mid-Morning
Dundas Weather - 2026-09-09 - Morning - Scattered Showers
80°F 27°C
Scattered Showers
Mid-Afternoon
Dundas Weather - 2026-09-09 - Afternoon - Partly Cloudy
96°F 36°C
Partly Cloudy
Early-Evening
Dundas Weather - 2026-09-09 - Evening - Partly Cloudy
81°F 27°C
Partly Cloudy
Sizzling hot near 96°F 36°C with a heat index reaching 99°F 37°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the SW to the NW at 13 mph 20 km/h. Gusts up to 20 mph 32 km/h.

Thursday, September 10, 2026

Mid-Morning
Dundas Weather - 2026-09-10 - Morning - Cloudy
72°F 22°C
Cloudy
Mid-Afternoon
Dundas Weather - 2026-09-10 - Afternoon - Heavy Rain Showers
72°F 22°C
Heavy Rain Showers
Early-Evening
Dundas Weather - 2026-09-10 - Evening - Light Showers
72°F 22°C
Light Showers
Comfortable with temperatures reaching 72°F 22°C, clouds and showers taking over for the afternoon and evening, with steady humidity and steady pressure.

Friday, September 11, 2026

Mid-Morning
Dundas Weather - 2026-09-11 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Dundas Weather - 2026-09-11 - Afternoon - Overcast
81°F 27°C
Overcast
Early-Evening
Dundas Weather - 2026-09-11 - Evening - Overcast
76°F 25°C
Overcast
Very warm near 81°F 27°C, though humidity makes it feel like 84°F 29°C, overcast throughout the day, with lower humidity and steady pressure.

Saturday, September 12, 2026

Mid-Morning
Dundas Weather - 2026-09-12 - Morning - Partly Cloudy
74°F 24°C
Partly Cloudy
Mid-Afternoon
Dundas Weather - 2026-09-12 - Afternoon - Partly Cloudy
88°F 31°C
Partly Cloudy
Early-Evening
Dundas Weather - 2026-09-12 - Evening - Overcast
82°F 28°C
Overcast
Warm temperatures up to 88°F 31°C, cloudy in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure.

Sunday, September 13, 2026

Mid-Morning
Dundas Weather - 2026-09-13 - Morning - Cloudy
79°F 26°C
Cloudy
Mid-Afternoon
Dundas Weather - 2026-09-13 - Afternoon - Overcast
90°F 32°C
Overcast
Early-Evening
Dundas Weather - 2026-09-13 - Evening - Sunny
85°F 30°C
Sunny
Very hot with a high of 90°F 32°C, cloudy in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds blowing from the SSW at 7 mph 11 km/h.

Monday, September 14, 2026

Mid-Morning
Dundas Weather - 2026-09-14 - Morning - Cloudy
80°F 27°C
Cloudy
Mid-Afternoon
Dundas Weather - 2026-09-14 - Afternoon - Overcast
94°F 34°C
Overcast
Early-Evening
Dundas Weather - 2026-09-14 - Evening - Sunny
87°F 31°C
Sunny
Very hot with a high of 94°F 34°C, feeling closer to 97°F 36°C in the humidity, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds moving from the SSW to the S at 11 mph 17 km/h. Gusts up to 24 mph 38 km/h.

Tuesday, September 15, 2026

Mid-Morning
Dundas Weather - 2026-09-15 - Morning - Rain Showers
78°F 25°C
Rain Showers
Mid-Afternoon
Dundas Weather - 2026-09-15 - Afternoon - Light Showers
90°F 32°C
Light Showers
Early-Evening
Dundas Weather - 2026-09-15 - Evening - Nearby Thunderstorms
80°F 27°C
Nearby Thunderstorms
Sizzling hot near 90°F 32°C with a heat index reaching 97°F 36°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. A stray shower or storm late in the day. Winds swinging from the WSW to the SE at 10 mph 16 km/h. Gusts up to 22 mph 34 km/h.

Wednesday, September 16, 2026

Mid-Morning
Dundas Weather - 2026-09-16 - Morning - Sunny
67°F 19°C
Sunny
Mid-Afternoon
Dundas Weather - 2026-09-16 - Afternoon - Sunny
82°F 28°C
Sunny
Early-Evening
Dundas Weather - 2026-09-16 - Evening - Sunny
75°F 24°C
Sunny
Quite warm around 82°F 28°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds shifting from the NE to the ENE at 10 mph 15 km/h.

Thursday, September 17, 2026

Mid-Morning
Dundas Weather - 2026-09-17 - Morning - Sunny
71°F 22°C
Sunny
Mid-Afternoon
Dundas Weather - 2026-09-17 - Afternoon - Sunny
89°F 32°C
Sunny
Early-Evening
Dundas Weather - 2026-09-17 - Evening - Sunny
84°F 29°C
Sunny
Warm temperatures up to 89°F 32°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds SSE at 6 mph 10 km/h.

Friday, September 18, 2026

Mid-Morning
Dundas Weather - 2026-09-18 - Morning - Sunny
83°F 28°C
Sunny
Mid-Afternoon
Dundas Weather - 2026-09-18 - Afternoon - Sunny
99°F 37°C
Sunny
Early-Evening
Dundas Weather - 2026-09-18 - Evening - Sunny
93°F 34°C
Sunny
Sizzling hot near 99°F 37°C with a heat index reaching 103°F 39°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds switching from the SSW to the S at 6 mph 10 km/h.

Saturday, September 19, 2026

Mid-Morning
Dundas Weather - 2026-09-19 - Morning - Sunny
85°F 30°C
Sunny
Mid-Afternoon
Dundas Weather - 2026-09-19 - Afternoon - Sunny
97°F 36°C
Sunny
Early-Evening
Dundas Weather - 2026-09-19 - Evening - Sunny
88°F 31°C
Sunny
Hot and sweltering around 97°F 36°C (heat index 101°F 38°C), sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds moving from the NW to the ENE at 9 mph 15 km/h.

Sunday, September 20, 2026

Mid-Morning
Dundas Weather - 2026-09-20 - Morning - Fog
80°F 27°C
Fog
Mid-Afternoon
Dundas Weather - 2026-09-20 - Afternoon - Sunny
101°F 38°C
Sunny
Early-Evening
Dundas Weather - 2026-09-20 - Evening - Sunny
94°F 35°C
Sunny
Dangerously hot with a high of 101°F 38°C, partly cloudy in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling.

Monday, September 21, 2026

Mid-Morning
Dundas Weather - 2026-09-21 - Morning - Sunny
89°F 32°C
Sunny
Mid-Afternoon
Dundas Weather - 2026-09-21 - Afternoon - Sunny
85°F 29°C
Sunny
Early-Evening
Dundas Weather - 2026-09-21 - Evening - Light Showers
75°F 24°C
Light Showers
Warm and summery around 85°F 29°C (feels like 89°F 31°C), drier conditions through late afternoon before showers move in, with increasing humidity and steady pressure. Winds swinging from the SW to the NNE at 7 mph 12 km/h.

Tuesday, September 22, 2026

Mid-Morning
Dundas Weather - 2026-09-22 - Morning - Overcast
67°F 19°C
Overcast
Mid-Afternoon
Dundas Weather - 2026-09-22 - Afternoon - Overcast
73°F 23°C
Overcast
Early-Evening
Dundas Weather - 2026-09-22 - Evening - Scattered Showers
70°F 21°C
Scattered Showers
Mild temperatures up to 73°F 23°C, scattered downpours possible, with lower humidity and steady pressure. Winds out of the ENE at 9 mph 15 km/h. Gusts up to 20 mph 33 km/h.

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Weather by the Numbers

Wed, 9th
Dundas IL Weather - Wednesday, Sep 9, 2026 - Overcast
Hi: 96°F 36°C
Lo: 71°F 22°C
Sunrise 06:28 AM
Sunset 07:10 PM
Wind SW 12 mph19 km/h
Dew Point 64°F18°C
uv Index 7
Barometric Pressure 30.03 in1017 mb
POP 9% *
Humidity 44%
Thu, 10th
Dundas IL Weather - Thursday, Sep 10, 2026 - Light Rain Shower
Hi: 76°F 25°C
Lo: 70°F 21°C
Sunrise 06:29 AM
Sunset 07:09 PM
Wind W 6 mph9 km/h
Dew Point 70°F21°C
uv Index 1
Barometric Pressure 29.97 in1015 mb
POP 76% *
Humidity 84%
Fri, 11th
Dundas IL Weather - Friday, Sep 11, 2026 - Overcast
Hi: 81°F 27°C
Lo: 66°F 19°C
Sunrise 06:30 AM
Sunset 07:07 PM
Wind W 2 mph3 km/h
Dew Point 67°F19°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 17% *
Humidity 68%
Sat, 12th
Dundas IL Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 88°F 31°C
Lo: 69°F 21°C
Sunrise 06:31 AM
Sunset 07:05 PM
Wind SW 7 mph11 km/h
Dew Point 64°F18°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 2% *
Humidity 51%
Sun, 13th
Dundas IL Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 92°F 33°C
Lo: 73°F 23°C
Sunrise 06:32 AM
Sunset 07:04 PM
Wind SSW 9 mph14 km/h
Dew Point 64°F18°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 10% *
Humidity 42%
Mon, 14th
Dundas IL Weather - Monday, Sep 14, 2026 - Overcast
Hi: 94°F 35°C
Lo: 75°F 24°C
Sunrise 06:33 AM
Sunset 07:02 PM
Wind WSW 11 mph17 km/h
Dew Point 64°F18°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 10% *
Humidity 43%
Tue, 15th
Dundas IL Weather - Tuesday, Sep 15, 2026 - Light Rain Shower
Hi: 90°F 32°C
Lo: 69°F 21°C
Sunrise 06:34 AM
Sunset 07:00 PM
Wind W 11 mph18 km/h
Dew Point 71°F22°C
uv Index 6
Barometric Pressure 30 in1016 mb
POP 36% *
Humidity 62%
Wed, 16th
Dundas IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 83°F 28°C
Lo: 60°F 16°C
Sunrise 06:35 AM
Sunset 06:59 PM
Wind ENE 9 mph15 km/h
Dew Point 54°F12°C
uv Index 6
Barometric Pressure 30.27 in1025 mb
POP 1% *
Humidity 46%
Thu, 17th
Dundas IL Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 90°F 32°C
Lo: 64°F 18°C
Sunrise 06:36 AM
Sunset 06:57 PM
Wind SSE 7 mph12 km/h
Dew Point 54°F12°C
uv Index 7
Barometric Pressure 30.24 in1024 mb
POP 1% *
Humidity 39%
Fri, 18th
Dundas IL Weather - Friday, Sep 18, 2026 - Sunny
Hi: 100°F 38°C
Lo: 76°F 25°C
Sunrise 06:36 AM
Sunset 06:56 PM
Wind WSW 8 mph13 km/h
Dew Point 62°F17°C
uv Index 8
Barometric Pressure 30.12 in1020 mb
POP 1% *
Humidity 36%
Sat, 19th
Dundas IL Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 98°F 37°C
Lo: 78°F 26°C
Sunrise 06:37 AM
Sunset 06:54 PM
Wind NW 6 mph9 km/h
Dew Point 64°F18°C
uv Index 8
Barometric Pressure 30 in1016 mb
POP 1% *
Humidity 38%
Sun, 20th
Dundas IL Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 102°F 39°C
Lo: 72°F 22°C
Sunrise 06:38 AM
Sunset 06:52 PM
Wind SW 5 mph9 km/h
Dew Point 64°F18°C
uv Index 8
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 40%
Mon, 21st
Dundas IL Weather - Monday, Sep 21, 2026 - Sunny
Hi: 97°F 36°C
Lo: 71°F 22°C
Sunrise 06:39 AM
Sunset 06:51 PM
Wind W 16 mph26 km/h
Dew Point 61°F16°C
uv Index 9
Barometric Pressure 30.03 in1017 mb
POP 1% *
Humidity 33%
Tue, 22nd
Dundas IL Weather - Tuesday, Sep 22, 2026 - Overcast
Hi: 77°F 25°C
Lo: 62°F 17°C
Sunrise 06:40 AM
Sunset 06:49 PM
Wind NE 11 mph18 km/h
Dew Point 55°F13°C
uv Index 5
Barometric Pressure 30.24 in1024 mb
POP 12% *
Humidity 52%
* POP = Probability of Precipitation. Data for 12:00 PM.