Granite City Weather Conditions

Current Temperature Level

sunny
29°C
30°C22°C
Pleasant

Sunny

Feels Like 33°C

Chances of Rain7%

Good

28AQI

Humidity

75%

Nowsunny29°7%12 PMsunny30°4%1 PMovercast28°13%2 PMovercast29°13%3 PMovercast30°12%4 PMcloudy30°8%5 PMcloudy30°8%6 PMovercast30°10%7 PMovercast28°12%8 PMcloudy26°11%9 PMovercast24°16%10 PMovercast23°17%11 PMovercast23°18%12 AMovercast22°18%1 AMovercast21°20%2 AMclear21°10%3 AMpartly cloudy21°13%4 AMclear21°11%5 AMclear20°11%6 AMcloudy20°21%7 AMsunny20°12%8 AMovercast22°19%9 AMsunny24°5%10 AMpartly cloudy26°4%
.

It is likely to be sunny; sun protection may help.

Last Updated: 2026-08-17 11:30 (Local Time)

Granite City Weather Parameters

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Granite City 10-Days Weather Forecast

See Monthly
Today17 Aug.


Overcast

Overcast

Fully overcast skies with a high of 26 °C. Humidity will be 73%, and winds at 32.8 km/h.


temperature icon

30°C  /  22°C

temperature iconHumi.73 %
temperature iconPrec.49.29 mm


Sunrise icon

Sunrise

06:16 AM

13hrs 36min

Sunset icon

Sunset

07:52 PM
Temperature (°C)
.
12 AMTime11 PM

Time

Condition

Temperature IconTemp

Humidity IconHumidity

UV IconUV

Wind IconWind Speed & Dir.

12 AM

RainRain

24 °C

90 %

0

29.9 kmph /  NNW

Feels Like IconFeels 22 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

1 AM

RainRain

24 °C

91 %

0

30.2 kmph /  NNW

Feels Like IconFeels 23 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

2 AM

RainRain

24 °C

91 %

0

31.3 kmph /  NNW

Feels Like IconFeels 22 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

3 AM

RainRain

23 °C

90 %

0

32.8 kmph /  NNW

Feels Like IconFeels 22 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

4 AM

RainRain

23 °C

92 %

0

13.3 kmph /  NNW

Feels Like IconFeels 26 °C

Temperature IconCover 78 %

Visibility IconVisibility 10 km

5 AM

Patchy rain nearbyPatchy rain nearby

23 °C

92 %

0

12.6 kmph /  NNW

Feels Like IconFeels 25 °C

Temperature IconCover 87 %

Visibility IconVisibility 10 km

6 AM

RainRain

23 °C

91 %

0

11.9 kmph /  NW

Feels Like IconFeels 24 °C

Temperature IconCover 86 %

Visibility IconVisibility 10 km

7 AM

Patchy rain nearbyPatchy rain nearby

22 °C

91 %

0.2

13 kmph /  NW

Feels Like IconFeels 24 °C

Temperature IconCover 74 %

Visibility IconVisibility 10 km

8 AM

OvercastOvercast

23 °C

89 %

0.8

14.4 kmph /  NNW

Feels Like IconFeels 24 °C

Temperature IconCover 90 %

Visibility IconVisibility 10 km

9 AM

Partly CloudyPartly Cloudy

24 °C

85 %

2.2

15.1 kmph /  NNW

Feels Like IconFeels 25 °C

Temperature IconCover 47 %

Visibility IconVisibility 10 km

10 AM

SunnySunny

25 °C

83 %

4.2

14.8 kmph /  NNW

Feels Like IconFeels 26 °C

Temperature IconCover 24 %

Visibility IconVisibility 10 km

11 AM

SunnySunny

29 °C

75 %

6.5

15.5 kmph /  NNW

Feels Like IconFeels 33 °C

Temperature IconCover 5 %

Visibility IconVisibility 10 km

12 PM

SunnySunny

30 °C

65 %

8.2

16.2 kmph /  NNW

Feels Like IconFeels 34 °C

Temperature IconCover 3 %

Visibility IconVisibility 10 km

1 PM

OvercastOvercast

28 °C

61 %

8.8

16.2 kmph /  NNW

Feels Like IconFeels 30 °C

Temperature IconCover 91 %

Visibility IconVisibility 10 km

2 PM

OvercastOvercast

29 °C

56 %

8.1

16.2 kmph /  NNW

Feels Like IconFeels 31 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

3 PM

OvercastOvercast

30 °C

51 %

6.4

16.6 kmph /  N

Feels Like IconFeels 31 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

4 PM

CloudyCloudy

30 °C

45 %

4.2

15.5 kmph /  N

Feels Like IconFeels 31 °C

Temperature IconCover 85 %

Visibility IconVisibility 10 km

5 PM

CloudyCloudy

30 °C

43 %

2.1

15.1 kmph /  N

Feels Like IconFeels 30 °C

Temperature IconCover 86 %

Visibility IconVisibility 10 km

6 PM

OvercastOvercast

30 °C

44 %

0.6

14.4 kmph /  NNE

Feels Like IconFeels 30 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

7 PM

OvercastOvercast

28 °C

52 %

0.1

11.2 kmph /  NNE

Feels Like IconFeels 29 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

8 PM

CloudyCloudy

26 °C

59 %

0

8.3 kmph /  NNE

Feels Like IconFeels 27 °C

Temperature IconCover 79 %

Visibility IconVisibility 10 km

9 PM

OvercastOvercast

24 °C

65 %

0

7.9 kmph /  NNE

Feels Like IconFeels 26 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

10 PM

OvercastOvercast

23 °C

69 %

0

7.9 kmph /  NE

Feels Like IconFeels 24 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

11 PM

OvercastOvercast

23 °C

70 %

0

5.8 kmph /  NE

Feels Like IconFeels 24 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

Temp29 °C


ConditionSunny


Humidity75 %

Feels33 °C


Cover5 %


Visibility10 km

Wind Speed & Dir.15.5 kmph /  NNW


UV6.5

Granite City 30-Days (August 2026) Weather Forecast

See Hourly
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain nearby24°20°
2
Sunny30°20°
3
Sunny32°18°
4
Sunny33°19°
5
Sunny36°20°
6
Sunny28°21°
7
Sunny34°20°
8
Sunny36°22°
9
Sunny38°23°
10
Sunny39°25°
11
Sunny40°26°
12
Sunny38°26°
13
Sunny40°24°
14
Sunny38°26°
15
Sunny39°27°
16
Sunny33°24°
17Today
Overcast25°12°
18
Overcast13°13°
19
Overcast13°12°
20
Patchy rain nearby13°11°
21
Patchy rain nearby13°12°
22
Rain Shower12°11°
23
Patchy rain nearby12°12°
24
Rain Shower13°9°
25
Rain Showers31°20°
26
Rain Showers31°20°
27
Rain Showers31°21°
28
Rain30°21°
29
Rain Showers31°21°
30
Rain Showers29°20°
31
Rain Showers29°20°

AugustWeather Overview

No. of days:

Sunny

Sunny

15

Cloudy

Cloudy

0

Rainy

Rainy

11

Snowy

Snowy

0


The monthly weather averages in Granite City consist of 15 sunny days, 0 cloudy days, 11 rainy days, and 0 snowy days.

Granite City's Locations Weather Conditions


Locations
Temp
Condition
Humi.
UV
Wind Speed & Direction
29 °C
sunnySunny
75%
6.5

15.5 kmph /  NNW

29 °C
sunnySunny
75%
6.5

15.5 kmph /  NNW

29 °C
sunnySunny
75%
6.5

15.5 kmph /  NNW

United States's Hottest Cities - August 2026

Hottest
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Last Updated: 17 Aug 2026, 04:41 PM

City Weather Rankings

FAQs About Granite City Weather Conditions


1. What is the current temperature in Granite City today - 17 August 2026?

The current temperature in Granite City is 29°C, with a feels-like temperature of 33°C. Today's forecast shows a high of 30°C and a low of 22°C, giving a 8 degree swing through the day as of 11:30 AM 17 August 2026.

2. What are the current weather parameters in Granite City today?

Here is a complete overview of Granite City's current weather conditions as of 11:30 AM 17 August 2026: Condition : Sunny Temperature : 29°C Pleasant (Feels like 33°C) Humidity : 75% Wind Speed : 15.5 km/h from NNW (335 degrees), Gust 5.6 m/s UV Index : 6.5 (High Air Pressure : 1018 mb Cloud Cover : 5% Visibility : 10 km Precipitation : 0 mm (80% chance of rain)

3. What is the 10-day weather forecast for Granite City from 11:30 AM 17 August 2026?

From 11:30 AM 17 August 2026, Granite City's 10-day forecast shows this trend: Today (Aug. 17) : Temp. 26°C, Hum. 73% and Overcast condition. Tuesday (Aug. 18) : Temp. 26°C, Hum. 61% and Sunny condition. Wednesday (Aug. 19) : Temp. 25°C, Hum. 77% and Rain Shower condition. Thursday (Aug. 20) : Temp. 23°C, Hum. 81% and Patchy rain nearby condition. Friday (Aug. 21) : Temp. 23°C, Hum. 63% and Sunny condition. Saturday (Aug. 22) : Temp. 24°C, Hum. 59% and Sunny condition. Sunday (Aug. 23) : Temp. 26°C, Hum. 58% and Sunny condition. Monday (Aug. 24) : Temp. 27°C, Hum. 50% and Sunny condition. Tuesday (Aug. 25) : Temp. 25°C, Hum. 67% and Rain Showers condition. Wednesday (Aug. 26) : Temp. 25°C, Hum. 70% and Rain Showers condition.

4. Will it rain in Granite City today?

As of 11:30 AM 17 August 2026, there is a 4% chance of rainfall in Granite City later today around 2026-08-17 12:00. Current precipitation is 0 mm. Residents are advised to carry an umbrella before heading out.

5. What is the monthly weather forecast for Granite City in August 2026?

August 2026 in Granite City is forecast to have 15 sunny days, 11 rainy days, 0 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 9°C to highs of 40°C.

6. How does the weather in Granite City affect air quality?

Weather directly impacts air quality in Granite City. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.