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Grand Tower, IL Weather

It is 81°F and clear in Grand Tower, IL, observed at 2:10 PM CDT. Today: Mostly Sunny, high 82°F, low 58°F. Hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Grand Tower, IL current weather

81°F

Clear

H 82° / L 58°Feels like 80°

Observed at Southern Illinois Airport (17.5 mi away), 10/30/2026, 2:10 PM CDT

Hourly forecast

NWS, updated 10/30/2026, 12:01 PM PT

  1. Now81°
  2. 4 PM81°
  3. 5 PM79°
  4. 6 PM77°
  5. 7 PM73°
  6. 8 PM68°
  7. 9 PM66°
  8. 10 PM65°
  9. 11 PM64°
  10. 12 AM63°Sat
  11. 1 AM63°
  12. 2 AM62°
  13. 3 AM62°
  14. 4 AM61°
  15. 5 AM60°
  16. 6 AM60°
  17. 7 AM59°
  18. 8 AM58°
  19. 9 AM60°
  20. 10 AM65°
  21. 11 AM70°
  22. 12 PM73°
  23. 1 PM74°
  24. 2 PM75°
  25. 3 PM76°
  26. 4 PM76°
  27. 5 PM76°
  28. 6 PM74°
  29. 7 PM71°
  30. 8 PM69°
  31. 9 PM66°
  32. 10 PM65°
  33. 11 PM64°
  34. 12 AM63°15%Sun
  35. 1 AM62°20%
  36. 1 AM61°30%
  37. 2 AM60°39%
  38. 3 AM60°37%
  39. 4 AM59°62%
  40. 5 AM59°67%
  41. 6 AM59°72%
  42. 7 AM56°72%
  43. 8 AM59°72%
  44. 9 AM63°72%
  45. 10 AM64°72%
  46. 11 AM64°72%
  47. 12 PM64°28%
  48. 1 PM65°28%

10-day forecast

Tap a day for details

  • Today10/30Low 58°High 82°

    This Afternoon: Mostly sunny. High near 82, with temperatures falling to around 79 in the afternoon. Southeast wind around 5 mph.

    Tonight: Mostly cloudy. Low around 58, with temperatures rising to around 60 overnight. East wind around 2 mph.

    Mostly Sunny
  • Sat10/3167% chance of precipitationLow 55°High 76°

    Saturday: Cloudy, with a high near 76. East wind around 5 mph.

    Saturday Night: Rain showers likely after midnight. Mostly cloudy, with a low around 55. Southeast wind around 3 mph. Chance of precipitation is 70%.

    Cloudy
  • Sun11/172% chance of precipitationLow 53°High 66°

    Sunday: Rain showers likely. Mostly cloudy, with a high near 66. Southeast wind 3 to 7 mph. Chance of precipitation is 70%.

    Sunday Night: Cloudy, with a low around 53. Southeast wind around 6 mph.

    Rain Showers Likely
  • Mon11/228% chance of precipitationLow 58°High 69°

    Monday: A slight chance of rain showers after noon. Mostly cloudy, with a high near 69. South southeast wind 6 to 9 mph.

    Monday Night: A chance of rain showers after midnight. Mostly cloudy, with a low around 58. South southeast wind 9 to 15 mph, with gusts as high as 20 mph.

    Mostly Cloudy then Slight Chance Rain Showers
  • Tue11/360% chance of precipitationLow 54°High 72°

    Tuesday: A chance of rain showers before noon, then showers and thunderstorms likely. Mostly cloudy, with a high near 72. South southeast wind 12 to 17 mph, with gusts as high as 28 mph.

    Tuesday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 54. South southeast wind 5 to 10 mph.

    Showers And Thunderstorms Likely
  • Wed11/436% chance of precipitationLow 49°High 69°

    Wednesday: A chance of rain showers. Partly sunny, with a high near 69. South southwest wind 5 to 8 mph.

    Wednesday Night: Mostly cloudy, with a low around 49. Northwest wind around 3 mph.

    Chance Rain Showers
  • Thu11/515% chance of precipitationLow 45°High 67°

    Thursday: A slight chance of rain showers after noon. Mostly cloudy, with a high near 67. Northwest wind 2 to 7 mph.

    Thursday Night: Partly cloudy, with a low around 45. Northwest wind around 3 mph.

    Mostly Cloudy then Slight Chance Rain Showers
  • Fri11/6Model blendLow 41°High 65°

    Friday: Partly cloudy. High near 65°. Low that night near 41°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sat11/7Model blendLow 39°High 64°

    Saturday: Partly cloudy. High near 64°. Low that night near 39°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sun11/8Model blend16% chance of precipitationLow 40°High 65°

    Sunday: Mostly cloudy. High near 65°. Low that night near 40°. About 0.22 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 37.635, -89.506 from the NWS PAH office, updated 10/30/2026, 12:01 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KMDH (Murphysboro/S Illinois Arpt, 18 mi), model run 10/30/2026, 9:00 AM CDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now81°Mostly Sunny0%3 mph
  2. 4 PM81°Mostly Sunny0%5 mph
  3. 5 PM79°Mostly Sunny0%3 mph
  4. 6 PM77°Partly Cloudy0%2 mph
  5. 7 PM73°Mostly Cloudy0%1 mph
  6. 8 PM68°Mostly Cloudy1%1 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Grand Tower, IL right now?
The latest observation from Southern Illinois Airport was 81°F and clear, reported at 10/30/2026, 2:10 PM CDT.
What is the high temperature today in Grand Tower, IL?
The National Weather Service forecast for this afternoon calls for a high near 82°F. Mostly Sunny.
Will it rain in Grand Tower, IL in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Grand Tower, IL?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 6 to Nov 8) come from the NOAA National Blend of Models, with highs of 64°F to 65°F. Model guidance this far out often changes.
What time is sunrise and sunset in Grand Tower, IL today?
Sunrise is about 7:21 AM CDT and sunset is about 6:01 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Grand Tower, IL?
At Carbondale Southern Il AP, the 1991 to 2020 normal high in October is 70°F and the normal low is 45°F.

Nearby hazards

Illinois hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: Blake Fire (0 acres)

UV and air quality forecast

EPA and AirNow

AQI forecast today (St. Louis (Metro-east))
GoodPM2.5
AQI forecast tomorrow (St. Louis (Metro-east))
ModeratePM2.5

UV index guide · Air quality

Drought

By county

Jackson County, week of 10/27/2026

100% of the county is in moderate drought or worse.

Sun and moon

Local time, center of the area

Sunrise
7:21 AM
Sunset
6:01 PM
Daylight
10 hr 40 min
Moon
Waning Gibbous 77% lit
First light (civil dawn)
6:54 AM
Last light (civil dusk)
6:28 PM
Moonrise
9:47 PM
Moonset
12:29 PM

Normal October weather

Climate

Normal October high 70°, low 45°, precipitation 3.54 in for the month. 1991 to 2020 normals at Carbondale Southern Il AP, 17 mi away.

Other places nearby

Data sources

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

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