BRIGHTON, IL 62012 Weather Forecast & Current Conditions

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62012 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
ALTON, IL Current Weather
9:50 AM CDT JUL 16, 2025
Clear 82°F
Feels Like:	87°F
Dewpoint:	73°F
Rel. Hum.:	74%
Visibility:	10 miles
Wind:	S at 7 mph
Pressure:	29.92 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

62012 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	BRIGHTON, IL 62012 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Sunny. Slight chance of thunderstorms late in the morning. Chance of thunderstorms in the afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of thunderstorms 30 percent.

TONIGHT
Partly cloudy in the evening then becoming mostly cloudy. A 40 percent chance of thunderstorms. Lows in the lower 70s. Southwest winds 5 to 10 mph.

THURSDAY
Mostly cloudy. A 50 percent chance of thunderstorms in the afternoon. Highs in the mid 80s. Northwest winds 5 to 10 mph.

THURSDAY NIGHT
Mostly cloudy with a 50 percent chance of thunderstorms. Lows in the upper 60s. Northeast winds up to 5 mph.

FRIDAY
Mostly cloudy with a 40 percent chance of thunderstorms. Highs in the lower 80s. East winds up to 5 mph.

FRIDAY NIGHT
Mostly cloudy. Slight chance of thunderstorms in the evening, then chance of thunderstorms after midnight. Lows in the lower 70s. Chance of thunderstorms 40 percent.

SATURDAY
Partly sunny with a 50 percent chance of thunderstorms. Highs in the upper 80s.

SATURDAY NIGHT
Partly cloudy in the evening then becoming mostly cloudy. A 50 percent chance of thunderstorms. Lows in the lower 70s.

SUNDAY AND SUNDAY NIGHT
Mostly cloudy. A 40 percent chance of thunderstorms. Highs around 90. Lows in the lower 70s.

MONDAY
Partly sunny with a 30 percent chance of thunderstorms. Highs in the upper 80s.

MONDAY NIGHT
Partly cloudy with a 20 percent chance of thunderstorms. Lows in the lower 70s.

TUESDAY
Mostly sunny. Highs in the lower 90s.

62012 WEATHER SATELLITE LOOPS

Visible Weather Satellite
BRIGHTON, IL 62012

Infrared Weather Satellite
BRIGHTON, IL 62012

62012 WEATHER RADAR LOOP

NEXRAD Weather Radar
BRIGHTON, IL 62012

MOS COMPUTER WEATHER FORECAST

ALTON, IL 3 hourly weather forecast

weather forecast created 6:00 PM MDT 7/15/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
16 JUL 2025

1 AM

73°

73°

Partly Cloudy

7%

0% Thunder
( 13% severe)

S 1

100%

73°

Low 71°

4 AM

72°

72°

Partly Cloudy

S 1

100%

72°

High 91°

7 AM

74°

74°

Partly Cloudy

3%

0% Thunder
( 16% severe)

SSW 3

100%

74°

Partly Cloudy

10 AM

82°

89°

Clear

SSW 6

79%

75°

1 PM

88°

96°

Partly Cloudy

11%
RAIN
<.01 in

0% Thunder
( 32% severe)

WSW 8

61%

73°

4 PM

90°

98°

Partly Cloudy

SW 8

56%

72°

7 PM

87°

94°

Partly Cloudy

16%
RAIN
<.01 in

0% Thunder
( 37% severe)

SW 8

63%

73°

10 PM

80°

85°

Partly Cloudy

SSW 6

82%

74°

Thursday
17 JUL 2025

1 AM

76°

76°

Partly Cloudy

16%
RAIN
***

0% Thunder
( 26% severe)

SW 6

90%

73°

Low 74°

4 AM

76°

76°

Mostly Cloudy

WSW 6

90%

73°

High 86°

7 AM

76°

76°

Partly Cloudy

10%
RAIN
<.01 in

0% Thunder
( 20% severe)

NNW 6

94%

74°

Mostly Cloudy

Chance of Rain

10 AM

80°

84°

Mostly Cloudy

NW 8

79%

73°

1 PM

83°

89°

Mostly Cloudy

47%
RAIN
***

0% Thunder
( 49% severe)

NW 8

72%

73°

4 PM

83°

88°

Mostly Cloudy

NNW 8

70%

72°

7 PM

80°

83°

Mostly Cloudy

28%
RAIN
***

0% Thunder
( 39% severe)

N 7

74%

71°

10 PM

74°

74°

Mostly Cloudy

NNE 3

93%

72°


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 72°	Low 67°	Low 71°	Low 73°	Low 73°
High 85°	High 80°	High 89°	High 90°	High 88°

Mostly Cloudy 64% Rain	Overcast 51% Rain	Overcast 53% Rain	Partly Cloudy 40% Rain	Partly Cloudy 37% Rain

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