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Granite City, IL 62048 Weather

Today: Partly Sunny, high 79°F, low 57°F. Hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Granite City, IL 62048 current weather

59°F

Partly Cloudy

Forecast for this hour. No recent report from a nearby station.

H 79° / L 57°

No recent station report. NWS hourly forecast updated 10/29/2026, 8:26 PM PT

Hourly forecast

NWS, updated 10/29/2026, 8:26 PM PT

  1. Now59°
  2. 2 AM58°
  3. 3 AM57°12%
  4. 4 AM57°
  5. 5 AM57°
  6. 6 AM57°12%
  7. 7 AM57°13%
  8. 8 AM57°
  9. 9 AM60°10%
  10. 10 AM66°
  11. 11 AM70°14%
  12. 12 PM72°11%
  13. 1 PM74°
  14. 2 PM77°
  15. 3 PM77°
  16. 4 PM77°
  17. 5 PM78°
  18. 6 PM74°
  19. 7 PM70°
  20. 8 PM67°
  21. 9 PM64°
  22. 10 PM63°
  23. 11 PM62°
  24. 12 AM61°Sat
  25. 1 AM61°
  26. 2 AM59°
  27. 3 AM59°
  28. 4 AM59°
  29. 5 AM58°
  30. 6 AM58°
  31. 7 AM57°
  32. 8 AM57°
  33. 9 AM60°
  34. 10 AM65°
  35. 11 AM68°
  36. 12 PM70°
  37. 1 PM71°10%
  38. 2 PM72°10%
  39. 3 PM73°10%
  40. 4 PM72°10%
  41. 5 PM70°10%
  42. 6 PM67°10%
  43. 7 PM64°24%
  44. 8 PM62°24%
  45. 9 PM61°24%
  46. 10 PM60°24%
  47. 11 PM60°24%
  48. 12 AM59°24%Sun

10-day forecast

Tap a day for details

  • Today10/3014% chance of precipitationLow 57°High 79°

    Friday: Partly sunny, with a high near 79. East wind 6 to 9 mph.

    Overnight: Partly cloudy, with a low around 57. Northeast wind around 5 mph.

    Partly Sunny
  • Sat10/3150% chance of precipitationLow 55°High 75°

    Saturday: A chance of rain showers after 7am. Cloudy. High near 75, with temperatures falling to around 70 in the afternoon. East wind 3 to 8 mph.

    Saturday Night: A chance of rain showers. Cloudy, with a low around 55. East wind 3 to 8 mph. Chance of precipitation is 50%.

    Chance Rain Showers
  • Sun11/139% chance of precipitationLow 56°High 73°

    Sunday: A chance of rain showers before noon. Mostly cloudy. High near 73, with temperatures falling to around 68 in the afternoon. Chance of precipitation is 40%.

    Sunday Night: A slight chance of rain showers after midnight. Mostly cloudy, with a low around 56. Chance of precipitation is 20%.

    Chance Rain Showers then Mostly Cloudy
  • Mon11/249% chance of precipitationLow 60°High 72°

    Monday: A chance of rain showers. Mostly cloudy, with a high near 72. Chance of precipitation is 40%.

    Monday Night: A chance of rain showers. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.

    Chance Rain Showers
  • Tue11/363% chance of precipitationLow 58°High 75°

    Tuesday: Showers and thunderstorms likely. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.

    Tuesday Night: Rain showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.

    Showers And Thunderstorms Likely
  • Wed11/459% chance of precipitationLow 49°High 72°

    Wednesday: Rain showers likely. Partly sunny, with a high near 72. Chance of precipitation is 60%.

    Wednesday Night: A chance of rain showers. Mostly cloudy, with a low around 49. Chance of precipitation is 30%.

    Rain Showers Likely
  • Thu11/520% chance of precipitationLow High 64°

    Thursday: A slight chance of rain showers before noon. Mostly sunny, with a high near 64. Chance of precipitation is 20%.

    Slight Chance Rain Showers then Mostly Sunny
  • Fri11/6Model blend17% chance of precipitationLow 42°High 65°

    Friday: Partly cloudy, slight chance of rain. High near 65°. Low that night near 42°.

    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 41°High 63°

    Saturday: Partly cloudy. High near 63°. 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.

  • Sun11/8Model blend16% chance of precipitationLow 42°High 64°

    Sunday: Partly cloudy, slight chance of rain. High near 64°. Low that night near 42°. About 0.12 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 38.772, -90.143 from the NWS LSX office, updated 10/29/2026, 8:26 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KALN (Alton/St Louis Rgnl, 10 mi), model run 10/29/2026, 9:00 PM 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. Now59°Partly Cloudy2%3 mph
  2. 2 AM58°Mostly Clear8%5 mph
  3. 3 AM57°Partly Cloudy12%5 mph
  4. 4 AM57°Mostly Cloudy7%5 mph
  5. 5 AM57°Mostly Cloudy7%5 mph
  6. 6 AM57°Partly Sunny12%6 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 high temperature today in Granite City, IL 62048?
The National Weather Service forecast for friday calls for a high near 79°F. Partly Sunny.
Will it rain in Granite City, IL 62048 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 Granite City, IL 62048?
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 63°F to 65°F. Model guidance this far out often changes.
What time is sunrise and sunset in Granite City, IL 62048 today?
Sunrise is about 7:25 AM CDT and sunset is about 6:02 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Granite City, IL 62048?
At Alton - Melvin Price L&d, the 1991 to 2020 normal high in October is 68°F and the normal low is 48°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: None reported

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

Madison County, week of 10/27/2026

64% of the county is in moderate drought or worse.

Sun and moon

Local time, center of the area

Sunrise
7:25 AM
Sunset
6:02 PM
Daylight
10 hr 37 min
Moon
Waning Gibbous 82% lit
First light (civil dawn)
6:58 AM
Last light (civil dusk)
6:30 PM
Moonrise
9:46 PM
Moonset
12:37 PM

Normal October weather

Climate

Normal October high 68°, low 48°, precipitation 2.93 in for the month. 1991 to 2020 normals at Alton - Melvin Price L&d, 7 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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