GLEN CARBON, IL 62034 Weather Forecast & Current Conditions

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62034 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
ALTON, IL Current Weather
11:55 PM CDT APR 2, 2026
Overcast 70°F
Feels Like:	70°F
Dewpoint:	63°F
Rel. Hum.:	78%
Visibility:	10 miles
Wind:	SW at 10 mph
Pressure:
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

62034 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	GLEN CARBON, IL 62034 Weather Forecast	Snowfall Forecast pages Snow Depth pages

OVERNIGHT
Mostly cloudy with a chance of showers and thunderstorms. Lows around 60. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent.

FRIDAY
Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent.

FRIDAY NIGHT
A chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows in the mid 50s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

SATURDAY
Showers with a chance of thunderstorms in the morning, then a slight chance of showers in the afternoon. Much cooler and less humid. Near steady temperature in the upper 50s. West winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent.

SATURDAY NIGHT
Partly cloudy in the evening, then clearing. Much cooler with lows around 40. Northwest winds 10 to 15 mph.

SUNDAY
Sunny. Highs in the upper 50s.

SUNDAY NIGHT
Clear. Lows in the upper 30s.

MONDAY
Sunny. Highs in the lower 60s.

MONDAY NIGHT
Partly cloudy. A slight chance of rain showers after midnight. Lows in the upper 30s. Chance of rain 20 percent.

TUESDAY AND TUESDAY NIGHT
Partly cloudy. Highs in the mid 50s. Lows in the upper 30s.

WEDNESDAY AND WEDNESDAY NIGHT
Partly cloudy. Highs in the upper 60s. Lows in the lower 50s.

THURSDAY
Mostly sunny. A slight chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 20 percent.

62034 WEATHER SATELLITE LOOPS

Visible Weather Satellite
GLEN CARBON, IL 62034

Infrared Weather Satellite
GLEN CARBON, IL 62034

62034 WEATHER RADAR LOOP

NEXRAD Weather Radar
GLEN CARBON, IL 62034

MOS COMPUTER WEATHER FORECAST

ALTON, IL 3 hourly weather forecast

weather forecast created 5:00 PM MST 4/ 2/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Friday
3 APR 2026

12 AM

65°

65°

Mostly Cloudy

31%
RAIN
.5–1 in

0% Thunder
( 17% severe)

WSW 7

84%

60°

Low 60°

3 AM

62°

63°

Mostly Cloudy

WNW 3

87%

58°

High 79°

6 AM

61°

62°

Mostly Cloudy

28%
RAIN
.01–.1 in

0% Thunder
( 17% severe)

ESE 3

87%

57°

Mostly Cloudy

Chance of Rain

9 AM

68°

68°

Mostly Cloudy

S 10

84%

63°

12 PM

75°

75°

Mostly Cloudy

37%
RAIN
***

0% Thunder
( 30% severe)

S 14

71%

65°

3 PM

77°

79°

Mostly Cloudy

S 15

64%

64°

6 PM

75°

75°

Mostly Cloudy

66%
RAIN
.25–.5 in

0% Thunder
( 32% severe)

S 13

66%

63°

9 PM

71°

71°

Mostly Cloudy

S 12

71%

61°

Saturday
4 APR 2026

12 AM

69°

69°

Mostly Cloudy

90%
RAIN
***

0% Thunder
( 35% severe)

S 12

76%

61°

Low 55°

3 AM

65°

65°

Mostly Cloudy

SW 12

84%

60°

High 61°

6 AM

60°

58°

Mostly Cloudy

71%
RAIN
***

0% Thunder
( 9% severe)

W 10

87%

56°

Mostly Cloudy

Rain Likely

9 AM

57°

54°

Mostly Cloudy

W 14

83%

52°

12 PM

55°

51°

Mostly Cloudy

22%
RAIN
.25–.5 in

0% Thunder
( 1% severe)

W 16

72%

46°

3 PM

56°

52°

Mostly Cloudy

WNW 17

57%

41°

6 PM

53°

49°

Partly Cloudy

3%

0% Thunder
( 1% severe)

WNW 14

54%

37°

9 PM

48°

43°

Partly Cloudy

WNW 10

58%

34°


ALTON, IL extended weather forecast
BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE
Low 53°	Low 36°	Low 36°	Low 35°	Low 33°
High 59°	High 59°	High 56°	High 47°	High 58°

Overcast 87% Rain	Clear 15% Rain	Partly Cloudy 17% Rain	Partly Cloudy 20% Rain/Snow	Clear 14% Rain/Snow

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