GRANITE CITY, IL 62040 Weather Forecast & Current Conditions

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62040 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
ALTON, IL Current Weather
11:35 PM CDT MAY 4, 2025
Overcast 50°F
Feels Like:	50°F
Dewpoint:	43°F
Rel. Hum.:	77%
Visibility:	10 miles
Wind:	Calm
Pressure:	29.95 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

62040 WEATHER FORECAST
10-Day model forecast maps 2024 Hurricanes	GRANITE CITY, IL 62040 Weather Forecast	Snowfall Forecast pages Snow Depth pages

REST OF TONIGHT
Mostly cloudy. Lows in the upper 40s. Northeast winds around 5 mph with gusts up to 20 mph, becoming northwest around 5 mph.

MONDAY
Mostly cloudy. A slight chance of showers in the morning. Highs in the lower 60s. North winds 5 to 10 mph. Chance of rain 20 percent.

MONDAY NIGHT
Mostly cloudy in the evening, then clearing. Lows in the upper 40s. North winds around 5 mph, becoming west after midnight.

TUESDAY
Mostly sunny. Not as cool with highs in the lower 70s. West winds around 5 mph, becoming southeast in the afternoon.

TUESDAY NIGHT
Mostly cloudy. A slight chance of showers after midnight. Lows in the mid 50s. East winds around 5 mph. Chance of rain 20 percent.

WEDNESDAY
Mostly cloudy with a 50 percent chance of showers. Highs around 70.

WEDNESDAY NIGHT AND THURSDAY
Mostly cloudy. A 40 percent chance of showers. Lows in the mid 50s. Highs in the lower 70s.

THURSDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of thunderstorms in the evening. A slight chance of showers. Lows in the lower 50s. Chance of rain 20 percent.

FRIDAY
Mostly sunny with a 20 percent chance of showers. Highs in the lower 70s.

FRIDAY NIGHT
Partly cloudy. Lows around 50.

SATURDAY
Mostly sunny with a 20 percent chance of showers. Highs in the mid 70s.

SATURDAY NIGHT
Mostly clear. Lows in the lower 50s.

SUNDAY
Sunny. A slight chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.

62040 WEATHER SATELLITE LOOPS

Visible Weather Satellite
GRANITE CITY, IL 62040

Infrared Weather Satellite
GRANITE CITY, IL 62040

62040 WEATHER RADAR LOOP

NEXRAD Weather Radar
GRANITE CITY, IL 62040

MOS COMPUTER WEATHER FORECAST

ALTON, IL 3 hourly weather forecast

weather forecast created 6:00 AM MDT 5/ 4/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Sunday
4 MAY 2025

1 PM

58°

55°

Mostly Cloudy

23%
RAIN
<.01 in

0% Thunder
( 6% severe)

N 14

60%

44°

High 60°

4 PM

59°

57°

Mostly Cloudy

N 13

55%

43°

Mostly Cloudy

Chance of Rain

7 PM

57°

55°

Mostly Cloudy

6%

0% Thunder
( 3% severe)

NE 8

59%

43°

10 PM

52°

50°

Mostly Cloudy

NNE 6

71%

43°

Monday
5 MAY 2025

1 AM

50°

48°

Mostly Cloudy

25%
RAIN
<.01 in

0% Thunder
( 4% severe)

N 5

77%

43°

Low 47°

4 AM

49°

47°

Mostly Cloudy

NW 5

83%

44°

High 61°

7 AM

49°

46°

Mostly Cloudy

21%
RAIN
<.01 in

0% Thunder
( 5% severe)

NNW 7

86%

45°

Mostly Cloudy

Chance of Rain

10 AM

53°

50°

Mostly Cloudy

N 8

80%

47°

1 PM

58°

56°

Mostly Cloudy

9%

0% Thunder
( 9% severe)

N 8

67%

47°

4 PM

60°

60°

Mostly Cloudy

N 6

64%

48°

7 PM

61°

62°

Mostly Cloudy

1%

0% Thunder
( 5% severe)

N 3

62%

48°

10 PM

54°

54°

Partly Cloudy

NW 1

80%

48°

Tuesday
6 MAY 2025

1 AM

50°

50°

Partly Cloudy

1%

0% Thunder
( 1% severe)

CALM

89%

47°

Low 47°

4 AM

48°

47°

Partly Cloudy

CALM

93%

46°

High 71°

7 AM

48°

47°

Partly Cloudy

1%

0% Thunder
( 2% severe)

WNW 1

96%

47°

Partly Cloudy

10 AM

60°

61°

Clear

NW 3

69%

50°

1 PM

68°

68°

Partly Cloudy

1%

0% Thunder
( 2% severe)

SSW 3

51%

49°

4 PM

70°

70°

Partly Cloudy

ESE 3

47%

49°

7 PM

69°

69°

Mostly Cloudy

ESE 3

51%

50°


ALTON, IL extended weather forecast
Wednesday 7 MAY 2025	Thursday 8 MAY 2025	Friday 9 MAY 2025	Saturday 10 MAY 2025	Sunday 11 MAY 2025
Low 50°	Low 52°	Low 48°	Low 46°	Low 53°
High 76°	High 68°	High 69°	High 74°	High 75°

Mostly Cloudy 17% Rain	Mostly Cloudy 30% Rain	Clear 10% Rain	Clear 8% Rain	Partly Cloudy 14% Rain

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