ALTON, IL 62002 Weather Forecast & Current Conditions

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62002 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
ALTON, IL Current Weather
10:35 PM CDT JUN 26, 2025
Clear 81°F
Feels Like:	84°F
Dewpoint:	70°F
Rel. Hum.:	69%
Visibility:	10 miles
Wind:	S at 6 mph
Pressure:	30.01 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

62002 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	ALTON, IL 62002 Weather Forecast	Snowfall Forecast pages Snow Depth pages

REST OF TONIGHT
Mostly clear. Lows in the mid 70s. Southwest winds around 5 mph.

FRIDAY
Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs around 90. Southwest winds 10 to 15 mph. Chance of rain 50 percent.

FRIDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 40 percent.

SATURDAY
Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Humid with highs around 90. Southwest winds around 5 mph. Chance of rain 50 percent.

SATURDAY NIGHT
Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 20 percent.

SUNDAY
Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 100.

SUNDAY NIGHT AND MONDAY
Mostly cloudy. Showers likely with a chance of thunderstorms. Lows in the lower 70s. Highs in the upper 80s. Chance of rain 60 percent.

MONDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows around 70. Chance of rain 50 percent.

TUESDAY THROUGH WEDNESDAY
Partly cloudy. Highs in the upper 80s. Lows in the upper 60s.

WEDNESDAY NIGHT
Mostly clear. Lows in the upper 60s.

THURSDAY
Sunny with a 20 percent chance of showers. Highs in the upper 80s.

62002 WEATHER SATELLITE LOOPS

Visible Weather Satellite
ALTON, IL 62002

Infrared Weather Satellite
ALTON, IL 62002

62002 WEATHER RADAR LOOP

NEXRAD Weather Radar
ALTON, IL 62002

MOS COMPUTER WEATHER FORECAST

ALTON, IL 3 hourly weather forecast

weather forecast created 6:00 PM MDT 6/26/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Friday
27 JUN 2025

1 AM

78°

80°

Clear

6%

0% Thunder
( 10% severe)

S 6

76%

70°

Low 75°

4 AM

76°

77°

Partly Cloudy

SSW 6

85%

71°

High 89°

7 AM

77°

79°

Partly Cloudy

18%
RAIN
<.01 in

0% Thunder
( 19% severe)

SW 6

82%

71°

Mostly Cloudy

Chance of Rain

10 AM

84°

89°

Partly Cloudy

WSW 9

65%

71°

1 PM

87°

93°

Mostly Cloudy

34%
RAIN
.01–.1 in

0% Thunder
( 45% severe)

W 10

59%

71°

4 PM

87°

92°

Mostly Cloudy

W 9

57%

70°

7 PM

85°

90°

Mostly Cloudy

15%
RAIN
<.01 in

0% Thunder
( 19% severe)

WSW 7

61%

70°

10 PM

79°

82°

Mostly Cloudy

WSW 3

77%

71°

Saturday
28 JUN 2025

1 AM

75°

75°

Partly Cloudy

11%
RAIN
<.01 in

0% Thunder
( 8% severe)

SW 1

90%

72°

Low 73°

4 AM

74°

74°

Partly Cloudy

WSW 1

93%

72°

High 91°

7 AM

75°

75°

Partly Cloudy

14%
RAIN
<.01 in

0% Thunder
( 11% severe)

WSW 2

94%

73°

Partly Cloudy

Chance of Rain

10 AM

83°

89°

Partly Cloudy

WSW 5

72%

73°

1 PM

89°

95°

Partly Cloudy

20%
RAIN
.5–1 in

0% Thunder
( 35% severe)

SSW 6

56%

71°

4 PM

90°

96°

Partly Cloudy

SSW 5

52%

70°

7 PM

86°

91°

Mostly Cloudy

7%

0% Thunder
( 21% severe)

SSW 5

59%

70°

10 PM

78°

80°

Mostly Cloudy

S 2

76%

70°


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 70°	Low 70°	Low 72°	Low 67°	Low 64°
High 89°	High 90°	High 88°	High 85°	High 87°

Mostly Cloudy 61% Rain	Partly Cloudy 45% Rain	Overcast 63% Rain	Partly Cloudy 30% Rain	Partly Cloudy 11% Rain

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