MASCOUTAH, IL 62258 Weather Forecast & Current Conditions

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62258 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
SCOTT AFB, IL Current Weather
4:55 AM CDT MAY 17, 2026
Broken Clouds 64°F
Feels Like:	64°F
Dewpoint:	64°F
Rel. Hum.:	100%
Visibility:	10 miles
Wind:	Calm
Pressure:	29.91 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

62258 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	MASCOUTAH, IL 62258 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Mostly sunny. Warmer with highs in the upper 80s. South winds 15 to 20 mph with gusts up to 30 mph.

TONIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. South winds 15 to 20 mph with gusts up to 30 mph.

MONDAY
Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 80s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.

MONDAY NIGHT
Partly cloudy with a slight chance of showers and thunderstorms. Lows around 70. South winds 15 to 20 mph. Chance of rain 20 percent.

TUESDAY
A chance of thunderstorms. Showers. Highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

TUESDAY NIGHT
Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Cooler with lows in the upper 50s. Chance of rain 70 percent.

WEDNESDAY AND WEDNESDAY NIGHT
Mostly cloudy. A 20 percent chance of showers. Highs in the lower 70s. Lows in the lower 50s.

THURSDAY
Partly sunny. Highs in the lower 70s.

THURSDAY NIGHT
Mostly cloudy. A slight chance of showers after midnight. Lows in the mid 50s. Chance of rain 20 percent.

FRIDAY
Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent.

FRIDAY NIGHT
Mostly cloudy with a 20 percent chance of showers. Lows in the upper 50s.

SATURDAY
Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 20 percent.

62258 WEATHER SATELLITE LOOPS

Visible Weather Satellite
MASCOUTAH, IL 62258

Infrared Weather Satellite
MASCOUTAH, IL 62258

62258 WEATHER RADAR LOOP

NEXRAD Weather Radar
MASCOUTAH, IL 62258

MOS COMPUTER WEATHER FORECAST

SCOTT AFB, IL 3 hourly weather forecast

weather forecast created 5:00 PM PDT 5/16/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Sunday
17 MAY 2026

1 AM

71°

71°

Mostly Cloudy

2%

0% Thunder
( 5% severe)

SSE 8

81%

65°

Low 67°

4 AM

69°

69°

Mostly Cloudy

SSE 8

84%

64°

High 89°

7 AM

68°

68°

Partly Cloudy

1%

0% Thunder
( 3% severe)

S 10

84%

63°

Partly Cloudy

10 AM

79°

81°

Partly Cloudy

S 14

64%

66°

1 PM

85°

87°

Partly Cloudy

1%

0% Thunder
( 11% severe)

S 17

53%

66°

4 PM

88°

90°

Clear

S 18

47%

65°

7 PM

86°

87°

Clear

3%

0% Thunder
( 8% severe)

S 15

45%

62°

10 PM

78°

80°

Clear

S 14

56%

61°

Monday
18 MAY 2026

1 AM

74°

74°

Partly Cloudy

14%
RAIN
<.01 in

0% Thunder
( 9% severe)

S 13

64%

61°

Low 69°

4 AM

72°

72°

Mostly Cloudy

S 13

76%

64°

High 88°

7 AM

72°

72°

Partly Cloudy

33%
RAIN
<.01 in

0% Thunder
( 23% severe)

S 14

81%

66°

Mostly Cloudy

Chance of Rain

Breezy

10 AM

80°

83°

Mostly Cloudy

S 17

69%

69°

1 PM

84°

89°

Mostly Cloudy

46%
RAIN
***

0% Thunder
( 57% severe)

S 20

65%

71°

4 PM

84°

88°

Mostly Cloudy

S 17

63%

70°

7 PM

84°

87°

Mostly Cloudy

32%
RAIN
.01–.1 in

0% Thunder
( 20% severe)

S 15

59%

68°

10 PM

78°

80°

Partly Cloudy

S 14

71%

68°


SCOTT AFB, IL extended weather forecast
Tuesday 19 MAY 2026	Wednesday 20 MAY 2026	Thursday 21 MAY 2026	Friday 22 MAY 2026	Saturday 23 MAY 2026
Low 69°	Low 56°	Low 50°	Low 62°	Low 58°
High 80°	High 70°	High 75°	High 78°	High 77°

Overcast 86% Rain	Mostly Cloudy 40% Rain	Mostly Cloudy 37% Rain	Overcast 43% Rain	Overcast 32% Rain

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