BROWNSTOWN, IL 62418 Weather Forecast & Current Conditions
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  62418 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

EFFINGHAM CNTY MEM, IL
Current Weather
4:35 AM CDT JUN 9, 2026
Overcast
73°F
Feels Like: 73°F
Dewpoint: 73°F
Rel. Hum.: 100%
Visibility: 7 miles
Wind: S at 6 mph
Pressure:
Last 72 hours

Local Area Snow Depth

Illinois Current Weather

Illinois MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  62418 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

BROWNSTOWN, IL 62418
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly cloudy with a chance of showers with a slight chance of thunderstorms this morning, then partly sunny with a slight chance of showers and thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this morning. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 100 this afternoon.
TONIGHT
Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 101 early in the evening.
WEDNESDAY
Sunny with highs in the lower 90s. Southwest winds 10 to 15 mph. Heat index values up to 101.
WEDNESDAY NIGHT
Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. South winds 10 to 15 mph. Chance of rain 20 percent.
THURSDAY
Sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. South winds 15 to 20 mph. Chance of rain 50 percent. Heat index values up to 102.
THURSDAY NIGHT
Showers likely with a chance of thunderstorms in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 70 percent.
FRIDAY AND FRIDAY NIGHT
Mostly clear. Highs in the lower 80s. Lows in the lower 60s.
SATURDAY
Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent.
SATURDAY NIGHT
Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 40 percent.
SUNDAY
Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent.
SUNDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows in the lower 60s. Chance of rain 50 percent.
MONDAY
Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 30 percent.

  62418 WEATHER SATELLITE LOOPS
Visible Weather Satellite
BROWNSTOWN, IL 62418
Infrared Weather Satellite
BROWNSTOWN, IL 62418
  62418 WEATHER RADAR LOOP
NEXRAD Weather Radar
BROWNSTOWN, IL 62418
 MOS COMPUTER WEATHER FORECAST

EFFINGHAM CNTY MEM, IL 3 hourly weather forecast
weather forecast created  7:00 PM CDT  6/ 8/2026
Tuesday
9 JUN 2026		 BROWNSTOWN, IL 62418 weather forecast Day 1, 0 hours 1 AM 72° 72° Mostly Cloudy 68%
RAIN
***		 0% Thunder
( 31% severe)		 S   7 97% 71°
Low 70° BROWNSTOWN, IL 62418 weather forecast Day 1, 3 hours 4 AM 71° 71° Mostly Cloudy SSW   7 97% 70°
High 89° BROWNSTOWN, IL 62418 weather forecast Day 1, 6 hours 7 AM 72° 72° Mostly Cloudy 20%
RAIN
.01–.1 in		 0% Thunder
( 22% severe)		 SW   7 100% 72°

Mostly Cloudy

Chance of Rain

 BROWNSTOWN, IL 62418 weather forecast Day 1, 9 hours 10 AM 78° 81° Mostly Cloudy SW   9 94% 76°
BROWNSTOWN, IL 62418 weather forecast Day 1, 12 hours 1 PM 83° 91° Mostly Cloudy 24%
RAIN
<.01 in		 0% Thunder
( 50% severe)		 SW   10 80% 76°
BROWNSTOWN, IL 62418 weather forecast Day 1, 15 hours 4 PM 87° 98° Partly Cloudy SW   9 70% 76°
BROWNSTOWN, IL 62418 weather forecast Day 1, 18 hours 7 PM 86° 98° Partly Cloudy 23%
RAIN
.1–.25 in		 0% Thunder
( 29% severe)		 SSW   6 77% 78°
BROWNSTOWN, IL 62418 weather forecast Day 1, 21 hours 10 PM 79° 83° Partly Cloudy S   5 88% 75°
Wednesday
10 JUN 2026		 BROWNSTOWN, IL 62418 weather forecast Day 2, 0 hours 1 AM 76° 76° Partly Cloudy 10%
RAIN
<.01 in		 0% Thunder
( 14% severe)		 SSW   6 94% 74°
Low 73° BROWNSTOWN, IL 62418 weather forecast Day 2, 3 hours 4 AM 75° 75° Partly Cloudy SSW   7 90% 72°
High 91° BROWNSTOWN, IL 62418 weather forecast Day 2, 6 hours 7 AM 76° 76° Clear 0%

 0% Thunder
( 8% severe)		 SSW   7 90% 73°

Clear



 BROWNSTOWN, IL 62418 weather forecast Day 2, 9 hours 10 AM 84° 93° Partly Cloudy SW   10 77% 76°
BROWNSTOWN, IL 62418 weather forecast Day 2, 12 hours 1 PM 88° 98° Clear 3%

 0% Thunder
( 41% severe)		 SSW   12 66% 75°
BROWNSTOWN, IL 62418 weather forecast Day 2, 15 hours 4 PM 90° 100° Clear SSW   13 60% 74°
BROWNSTOWN, IL 62418 weather forecast Day 2, 18 hours 7 PM 87° 95° Clear 26%
RAIN
.5–1 in		 0% Thunder
( 22% severe)		 S   12 65% 74°
BROWNSTOWN, IL 62418 weather forecast Day 2, 21 hours 10 PM 81° 85° Partly Cloudy SSW   12 74% 72°

EFFINGHAM CNTY MEM, IL extended weather forecast
Thursday
11 JUN 2026		 Friday
12 JUN 2026		 Saturday
13 JUN 2026		 Sunday
14 JUN 2026		 Monday
15 JUN 2026
Low 75° Low 68° Low 61° Low 64° Low 62°
High 96° High 81° High 84° High 79° High 79°
BROWNSTOWN, IL 62418 weather forecast Day 3 BROWNSTOWN, IL 62418 weather forecast Day 4 BROWNSTOWN, IL 62418 weather forecast Day 5 BROWNSTOWN, IL 62418 weather forecast Day 6 BROWNSTOWN, IL 62418 weather forecast Day 7
Partly Cloudy
31% Rain		 Partly Cloudy
57% Rain		 Partly Cloudy
13% Rain		 Overcast
59% Rain		 Overcast
51% Rain
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