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Grand Tower IL Weather - Clear - 60°F
Clear
60°F
Updated 12:54 am
Feels Like 59°F
Humidity 72%
Wind N 0 mph
Barometer  30.01 in
Dew Point 51°F
Grand Tower IL Weather - Clear - 16°C
Clear
16°C
Updated 12:54 am
Feels Like 15°C
Humidity 72%
Wind N 0 km/h
Barometer  101.6 kPa
Dew Point 11°C
Grand Tower, IL Weather and Current Conditionsgrand tower il weather forecast

Grand Tower, IL Weather Forecast

Grand Tower Illinois WeatherGrand Tower, Illinois Weather Weather Forecast
Here is the API 14 day weather forecast for Grand Tower, Illinois. Note: The 7-day weather forecast for Grand Tower, IL is the most reliable and accurate weather forecast. This template should only be used as a probable scenario. Forecasting weather beyond the next 7 days is a challenge.
Grand Tower, IL Weather Forecast Dated: 1254 AM Tue Sep 29 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and an unsettled pattern will dominate.

Tuesday, September 29, 2026

Mid-Morning
Grand Tower Weather - 2026-09-29 - Morning - Sunny
68°F 20°C
Sunny
Mid-Afternoon
Grand Tower Weather - 2026-09-29 - Afternoon - Overcast
87°F 31°C
Overcast
Early-Evening
Grand Tower Weather - 2026-09-29 - Evening - Partly Cloudy
78°F 26°C
Partly Cloudy
Warm and summery near 87°F 31°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling.

Wednesday, September 30, 2026

Mid-Morning
Grand Tower Weather - 2026-09-30 - Morning - Overcast
72°F 22°C
Overcast
Mid-Afternoon
Grand Tower Weather - 2026-09-30 - Afternoon - Overcast
94°F 35°C
Overcast
Early-Evening
Grand Tower Weather - 2026-09-30 - Evening - Overcast
88°F 32°C
Overcast
Hot and sweltering around 94°F 35°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds turning from the S to the SSE at 10 mph 15 km/h. Gusts up to 22 mph 35 km/h.

Thursday, October 1, 2026

Mid-Morning
Grand Tower Weather - 2026-10-01 - Morning - Overcast
80°F 27°C
Overcast
Mid-Afternoon
Grand Tower Weather - 2026-10-01 - Afternoon - Overcast
94°F 34°C
Overcast
Early-Evening
Grand Tower Weather - 2026-10-01 - Evening - Overcast
85°F 30°C
Overcast
Sizzling hot with 94°F 34°C, overcast throughout the day, with steady humidity and steady pressure. Winds switching from the SSW to the NNW at 12 mph 19 km/h.

Friday, October 2, 2026

Mid-Morning
Grand Tower Weather - 2026-10-02 - Morning - Light Showers
69°F 20°C
Light Showers
Mid-Afternoon
Grand Tower Weather - 2026-10-02 - Afternoon - Light Showers
58°F 15°C
Light Showers
Early-Evening
Grand Tower Weather - 2026-10-02 - Evening - Light Showers
56°F 14°C
Light Showers
Cool with a high near 58°F 15°C, rounds of showers expected off and on all day, with steady humidity and barometric pressure rising. Winds increasing from the NNE at 3 mph 5 km/h to NE at 13 mph 21 km/h. Gusts up to 26 mph 42 km/h.

Saturday, October 3, 2026

Mid-Morning
Grand Tower Weather - 2026-10-03 - Morning - Fog
57°F 14°C
Fog
Mid-Afternoon
Grand Tower Weather - 2026-10-03 - Afternoon - Overcast
63°F 17°C
Overcast
Early-Evening
Grand Tower Weather - 2026-10-03 - Evening - Light Showers
63°F 17°C
Light Showers
Refreshing around 63°F 17°C, mainly dry until evening showers arrive, with steady humidity and steady pressure.

Sunday, October 4, 2026

Mid-Morning
Grand Tower Weather - 2026-10-04 - Morning - Light Showers
64°F 18°C
Light Showers
Mid-Afternoon
Grand Tower Weather - 2026-10-04 - Afternoon - Scattered Showers
69°F 21°C
Scattered Showers
Early-Evening
Grand Tower Weather - 2026-10-04 - Evening - Scattered Showers
67°F 20°C
Scattered Showers
Pleasant near 69°F 21°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds swinging from the W to the NW at 9 mph 15 km/h. Gusts up to 22 mph 35 km/h.

Monday, October 5, 2026

Mid-Morning
Grand Tower Weather - 2026-10-05 - Morning - Sunny
57°F 14°C
Sunny
Mid-Afternoon
Grand Tower Weather - 2026-10-05 - Afternoon - Sunny
69°F 21°C
Sunny
Early-Evening
Grand Tower Weather - 2026-10-05 - Evening - Sunny
58°F 15°C
Sunny
Comfortable with temperatures reaching 69°F 21°C, sunny throughout the day, with lower humidity and steady pressure. Winds shifting from the WNW to the NNE at 9 mph 15 km/h.

Tuesday, October 6, 2026

Mid-Morning
Grand Tower Weather - 2026-10-06 - Morning - Sunny
51°F 11°C
Sunny
Mid-Afternoon
Grand Tower Weather - 2026-10-06 - Afternoon - Cloudy
66°F 19°C
Cloudy
Early-Evening
Grand Tower Weather - 2026-10-06 - Evening - Overcast
60°F 16°C
Overcast
Cool with a high near 66°F 19°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.

Wednesday, October 7, 2026

Mid-Morning
Grand Tower Weather - 2026-10-07 - Morning - Overcast
57°F 14°C
Overcast
Mid-Afternoon
Grand Tower Weather - 2026-10-07 - Afternoon - Overcast
69°F 21°C
Overcast
Early-Evening
Grand Tower Weather - 2026-10-07 - Evening - Overcast
62°F 17°C
Overcast
Mild temperatures up to 69°F 21°C, overcast throughout the day, with steady humidity and steady pressure.

Thursday, October 8, 2026

Mid-Morning
Grand Tower Weather - 2026-10-08 - Morning - Overcast
60°F 16°C
Overcast
Mid-Afternoon
Grand Tower Weather - 2026-10-08 - Afternoon - Sunny
74°F 23°C
Sunny
Early-Evening
Grand Tower Weather - 2026-10-08 - Evening - Sunny
67°F 19°C
Sunny
Mild with a high of 74°F 23°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure falling.

Friday, October 9, 2026

Mid-Morning
Grand Tower Weather - 2026-10-09 - Morning - Overcast
54°F 12°C
Overcast
Mid-Afternoon
Grand Tower Weather - 2026-10-09 - Afternoon - Sunny
63°F 17°C
Sunny
Early-Evening
Grand Tower Weather - 2026-10-09 - Evening - Sunny
57°F 14°C
Sunny
Comfortable at 63°F 17°C, cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds turning from the NNE to the SE at 11 mph 17 km/h. Gusts up to 22 mph 36 km/h.

Saturday, October 10, 2026

Mid-Morning
Grand Tower Weather - 2026-10-10 - Morning - Scattered Showers
51°F 10°C
Scattered Showers
Mid-Afternoon
Grand Tower Weather - 2026-10-10 - Afternoon - Cloudy
59°F 15°C
Cloudy
Early-Evening
Grand Tower Weather - 2026-10-10 - Evening - Overcast
53°F 12°C
Overcast
Cool with a high near 59°F 15°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds out of the SW at 13 mph 21 km/h. Gusts up to 22 mph 35 km/h.

Sunday, October 11, 2026

Mid-Morning
Grand Tower Weather - 2026-10-11 - Morning - Cloudy
50°F 10°C
Cloudy
Mid-Afternoon
Grand Tower Weather - 2026-10-11 - Afternoon - Sunny
64°F 18°C
Sunny
Early-Evening
Grand Tower Weather - 2026-10-11 - Evening - Sunny
57°F 14°C
Sunny
Refreshing around 64°F 18°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the NNW to the W at 5 mph 8 km/h.

Monday, October 12, 2026

Mid-Morning
Grand Tower Weather - 2026-10-12 - Morning - Overcast
53°F 11°C
Overcast
Mid-Afternoon
Grand Tower Weather - 2026-10-12 - Afternoon - Sunny
60°F 16°C
Sunny
Early-Evening
Grand Tower Weather - 2026-10-12 - Evening - Sunny
28°F 7°C
Sunny
Mildly cool near 60°F 16°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds decreasing from N 15 mph 23 km/h to 6 mph 9 km/h.

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Weather by the Numbers

Tue, 29th
Grand Tower IL Weather - Tuesday, Sep 29, 2026 - Sunny
Hi: 88°F 31°C
Lo: 58°F 15°C
Sunrise 06:52 AM
Sunset 06:44 PM
Wind S 8 mph13 km/h
Dew Point 42°F5°C
uv Index 6
Barometric Pressure 30 in1016 mb
POP 0% *
Humidity 24%
Wed, 30th
Grand Tower IL Weather - Wednesday, Sep 30, 2026 - Overcast
Hi: 94°F 35°C
Lo: 65°F 18°C
Sunrise 06:52 AM
Sunset 06:42 PM
Wind SSW 15 mph23 km/h
Dew Point 54°F12°C
uv Index 6
Barometric Pressure 29.88 in1012 mb
POP 9% *
Humidity 30%
Thu, 1st
Grand Tower IL Weather - Thursday, Oct 1, 2026 - Overcast
Hi: 94°F 35°C
Lo: 72°F 22°C
Sunrise 06:53 AM
Sunset 06:41 PM
Wind SSW 19 mph31 km/h
Dew Point 59°F15°C
uv Index 6
Barometric Pressure 29.88 in1012 mb
POP 9% *
Humidity 35%
Fri, 2nd
Grand Tower IL Weather - Friday, Oct 2, 2026 - Light Rain Shower
Hi: 73°F 23°C
Lo: 55°F 13°C
Sunrise 06:54 AM
Sunset 06:39 PM
Wind NNE 4 mph6 km/h
Dew Point 68°F20°C
uv Index 0
Barometric Pressure 30.06 in1018 mb
POP 76% *
Humidity 97%
Sat, 3rd
Grand Tower IL Weather - Saturday, Oct 3, 2026 - Mist
Hi: 64°F 18°C
Lo: 55°F 13°C
Sunrise 06:55 AM
Sunset 06:38 PM
Wind ENE 6 mph10 km/h
Dew Point 59°F15°C
uv Index 4
Barometric Pressure 30.12 in1020 mb
POP 32% *
Humidity 91%
Sun, 4th
Grand Tower IL Weather - Sunday, Oct 4, 2026 - Light Rain Shower
Hi: 71°F 22°C
Lo: 60°F 16°C
Sunrise 06:56 AM
Sunset 06:36 PM
Wind NW 5 mph8 km/h
Dew Point 64°F18°C
uv Index 4
Barometric Pressure 29.88 in1012 mb
POP 55% *
Humidity 95%
Mon, 5th
Grand Tower IL Weather - Monday, Oct 5, 2026 - Sunny
Hi: 69°F 21°C
Lo: 49°F 10°C
Sunrise 06:57 AM
Sunset 06:35 PM
Wind NW 15 mph24 km/h
Dew Point 41°F5°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 41%
Tue, 6th
Grand Tower IL Weather - Tuesday, Oct 6, 2026 - Partly Cloudy
Hi: 67°F 20°C
Lo: 43°F 6°C
Sunrise 06:58 AM
Sunset 06:33 PM
Wind E 4 mph6 km/h
Dew Point 32°F-0°C
uv Index 5
Barometric Pressure 30.24 in1024 mb
POP 4% *
Humidity 33%
Wed, 7th
Grand Tower IL Weather - Wednesday, Oct 7, 2026 - Overcast
Hi: 69°F 21°C
Lo: 50°F 10°C
Sunrise 06:59 AM
Sunset 06:32 PM
Wind ESE 5 mph8 km/h
Dew Point 38°F3°C
uv Index 4
Barometric Pressure 30.24 in1024 mb
POP 10% *
Humidity 37%
Thu, 8th
Grand Tower IL Weather - Thursday, Oct 8, 2026 - Sunny
Hi: 75°F 24°C
Lo: 53°F 12°C
Sunrise 07:00 AM
Sunset 06:30 PM
Wind NNW 4 mph6 km/h
Dew Point 42°F5°C
uv Index 6
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 37%
Fri, 9th
Grand Tower IL Weather - Friday, Oct 9, 2026 - Partly Cloudy
Hi: 63°F 17°C
Lo: 50°F 10°C
Sunrise 07:01 AM
Sunset 06:29 PM
Wind NNE 13 mph22 km/h
Dew Point 39°F4°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 2% *
Humidity 45%
Sat, 10th
Grand Tower IL Weather - Saturday, Oct 10, 2026 - Cloudy
Hi: 60°F 16°C
Lo: 47°F 8°C
Sunrise 07:01 AM
Sunset 06:27 PM
Wind N 14 mph23 km/h
Dew Point 36°F2°C
uv Index 3
Barometric Pressure 29.97 in1015 mb
POP 9% *
Humidity 45%
Sun, 11th
Grand Tower IL Weather - Sunday, Oct 11, 2026 - Sunny
Hi: 65°F 18°C
Lo: 43°F 6°C
Sunrise 07:02 AM
Sunset 06:26 PM
Wind NNW 11 mph18 km/h
Dew Point 37°F3°C
uv Index 5
Barometric Pressure 29.88 in1012 mb
POP 1% *
Humidity 43%
Mon, 12th
Grand Tower IL Weather - Monday, Oct 12, 2026 - Overcast
Hi: 61°F 16°C
Lo: 50°F 10°C
Sunrise 07:03 AM
Sunset 06:24 PM
Wind N 14 mph23 km/h
Dew Point 38°F3°C
uv Index 3
Barometric Pressure 30.03 in1017 mb
POP 4% *
Humidity 49%
* POP = Probability of Precipitation. Data for 12:00 PM.