Current Conditions

Granite City, Illinois

67°F20°C
Light Rain

Wind

E 4 mph6 km/h

Humidity

70%

Cloud Cover

59%

As of Friday, July 24, 2026 at 4:02 AM CDT

Today's Outlook

Day

Overcast and warm, with a high of 74°F23°C and morning low of 68°F20°C. Light wind from the SSE around 4 mph6 km/h. 85% chance of light rain throughout the day.

Night

Mostly cloudy, with a low around 67°F20°C. Light wind from the ESE around 5 mph7 km/h. 64% chance of light rain in the evening.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
FridayJul 24Light RainHigh 74°F23°CLow 67°F20°CPrecip 0.19 in4.8 mm85%Cloud 85%Wind SE 4 mph7 km/hFriday: Overcast and warm, with a high of 74°F23°C and morning low of 68°F20°C. Light wind from the SSE around 4 mph6 km/h. 85% chance of light rain throughout the day. Friday Night: Mostly cloudy, with a low around 67°F20°C. Light wind from the ESE around 5 mph7 km/h. 64% chance of light rain in the evening.
SaturdayJul 25ShowersHigh 90°F32°CFeels 102°F39°CLow 70°F21°CPrecip 0.14 in3.6 mm63%Cloud 55%Wind S 5 mph7 km/hSaturday: Mostly cloudy and hot, with a high of 90°F32°C and morning low of 70°F21°C — feels like 100°F38°C. Light wind from the SSW around 4 mph7 km/h. 63% chance of showers throughout the day. Heat risk in the afternoon. Saturday Night: Partly cloudy, with a low around 70°F21°C. Light wind from the SSE around 5 mph8 km/h. 62% chance of showers overnight.
SundayJul 26HotHigh 100°F38°CFeels 112°F45°CLow 78°F25°CPrecip 0 in0.1 mm8%Cloud 46%Wind SSW 4 mph7 km/hSunday: Partly cloudy and hot, with a high of 100°F38°C and morning low of 78°F26°C — feels like 113°F45°C. Light wind from the WSW around 4 mph6 km/h. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 78°F25°C. Light wind from the S around 4 mph7 km/h.
MondayJul 27HotHigh 100°F38°CFeels 109°F43°CLow 81°F27°CFeels 86°F30°CPrecip 0.02 in0.4 mm6%Cloud 46%Wind SW 7 mph11 km/hMonday: Partly cloudy and hot, with a high of 100°F38°C and morning low of 81°F27°C — feels like 109°F43°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 83°F28°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h.
TuesdayJul 28DrizzleHigh 97°F36°CFeels 105°F41°CLow 81°F27°CFeels 85°F30°CPrecip 0.03 in0.7 mm13%Cloud 37%Wind NNW 7 mph11 km/hTuesday: Partly cloudy and hot, with a high of 97°F36°C and morning low of 81°F27°C — feels like 106°F41°C. Breezy from the NNW at 7 to 8 mph11 to 12 km/h. 13% chance of drizzle in the afternoon. Heat risk in the afternoon. Tuesday Night: Partly cloudy, with a low around 82°F28°C. Breezy from the NNW at 7 mph11 km/h. 12% chance of drizzle in the evening.
WednesdayJul 29ClearHigh 94°F35°CLow 75°F24°CPrecip 0.01 in0.2 mm4%Cloud 16%Wind NE 6 mph9 km/hWednesday: Mostly clear and hot, with a high of 94°F35°C and morning low of 75°F24°C. Breezy from the NNE at 6 to 7 mph9 to 11 km/h. Humid. Wednesday Night: Mostly clear, with a low around 77°F25°C. Light wind from the NE around 6 mph10 km/h.
ThursdayJul 30ClearHigh 95°F35°CLow 73°F23°CPrecip 0.02 in0.6 mm6%Cloud 20%Wind E 5 mph8 km/hThursday: Mostly clear and hot, with a high of 95°F35°C and morning low of 73°F23°C. Light wind from the E around 5 mph7 km/h. Thursday Night: Mostly clear, with a low around 74°F23°C. Light wind from the E around 5 mph8 km/h.

15-Day Forecast

Day High (°F) Low (°F) Precip (mm) Cloud Cover (%) Condition Wind (mph)

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 38.7014°N, 90.1487°W·Elevation: 129m·Timezone: America/Chicago·Population: 29,054