BRIGHTON, IL 62012 Weather Forecast & Current Conditions

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62012 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
ALTON, IL Current Weather
2:50 PM CDT OCT 27, 2025
Overcast 59°F
Feels Like:	57°F
Dewpoint:	48°F
Rel. Hum.:	67%
Visibility:	10 miles
Wind:	E at 10 mph
Pressure:	30.01 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

Regional Weather Maps

(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

THIS AFTERNOON
Mostly cloudy. Highs in the lower 60s. East winds 5 to 10 mph.

TONIGHT
Cloudy. Lows in the upper 40s. East winds around 5 mph.

TUESDAY
Cloudy. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the upper 50s. East winds 5 to 10 mph. Chance of rain 50 percent.

TUESDAY NIGHT
Showers. Lows in the mid 40s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

WEDNESDAY
Showers in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the mid 50s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.

WEDNESDAY NIGHT
Partly cloudy with a slight chance of showers in the evening, then mostly clear after midnight. Lows in the upper 30s. Chance of rain 20 percent.

THURSDAY THROUGH FRIDAY
Mostly clear. Highs in the upper 50s. Lows in the upper 30s.

FRIDAY NIGHT AND SATURDAY
Partly cloudy. Lows in the upper 30s. Highs in the lower 50s.

SATURDAY NIGHT AND SUNDAY
Partly cloudy. A 20 percent chance of rain showers. Lows in the mid 30s. Highs in the upper 50s.

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 5:00 AM MST 10/27/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
27 OCT 2025

12 PM

55°

52°

Mostly Cloudy

12%
RAIN
<.01 in

0% Thunder
( 1% severe)

E 12

74%

47°

High 58°

3 PM

57°

55°

Mostly Cloudy

E 10

69%

47°

Mostly Cloudy

6 PM

54°

52°

Mostly Cloudy

15%
RAIN
<.01 in

0% Thunder
( 1% severe)

E 7

80%

48°

9 PM

51°

50°

Mostly Cloudy

E 5

93%

49°

Tuesday
28 OCT 2025

12 AM

50°

49°

Mostly Cloudy

5%

0% Thunder
( 1% severe)

E 3

96%

49°

Low 48°

3 AM

50°

49°

Mostly Cloudy

E 3

96%

49°

High 58°

6 AM

50°

49°

Mostly Cloudy

17%
RAIN
<.01 in

0% Thunder
( 2% severe)

E 3

96%

49°

Overcast

Chance of Rain

9 AM

54°

52°

Mostly Cloudy

ESE 7

90%

51°

12 PM

57°

55°

Overcast

45%
RAIN
.01–.1 in

0% Thunder
( 2% severe)

E 8

80%

51°

3 PM

57°

55°

Overcast

ESE 9

83%

52°

6 PM

56°

54°

Overcast

83%
RAIN
***

0% Thunder
( 3% severe)

E 8

90%

53°

9 PM

53°

50°

Overcast

E 9

100%

53°

Wednesday
29 OCT 2025

12 AM

52°

48°

Mostly Cloudy

82%
RAIN
***

0% Thunder
( 8% severe)

E 10

100%

52°

Low 46°

3 AM

50°

45°

Overcast

ENE 13

100%

50°

High 53°

6 AM

48°

42°

Mostly Cloudy

73%
RAIN
***

0% Thunder
( 4% severe)

NE 15

96%

47°

Mostly Cloudy

Rain Likely

9 AM

49°

43°

Mostly Cloudy

NE 15

89%

46°

12 PM

51°

46°

Mostly Cloudy

54%
RAIN
***

0% Thunder
( 1% severe)

NNE 16

74%

43°

3 PM

52°

47°

Mostly Cloudy

NNE 16

66%

41°

6 PM

50°

46°

Mostly Cloudy

N 12

71%

41°


ALTON, IL extended weather forecast
Thursday 30 OCT 2025	Friday 31 OCT 2025	Saturday 1 NOV 2025	Sunday 2 NOV 2025	Monday 3 NOV 2025
Low 41°	Low 36°	Low 37°	Low 36°	Low 38°
High 58°	High 59°	High 51°	High 55°	High 57°

Mostly Cloudy 40% Rain	Clear 5% Rain	Partly Cloudy 15% Rain	Partly Cloudy 15% Rain	Partly Cloudy 21% Rain

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