Mermet, IL Weather Forecast & Current Conditions

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Mermet, IL Weather Maps

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Mermet Weather Map
UTC Time: 9/21/2026, 16:35
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Mermet, IL Regional Weather

Expires:202609211700;;824573
ASUS43 KLOT 211610
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM CDT MON SEP 21 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
  REPORT WEATHER SUCH AS PRECIPITATION OR FOG.


ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211700-
SOUTH-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     MOSUNNY   75  68  78 N5        29.99F TC  24           
CAIRO*         PTSUNNY   80  71  72 E7        29.99R HX  84  TC  27   
EFFINGHAM*     CLOUDY    65  64  94 NW8       30.06R TC  19           
MARION         PTSUNNY   77  66  69 CALM      30.00  TC  25           
MT. VERNON     CLOUDY    73  68  84 VRB3      30.01S TC  23           
CENTRALIA*     CLOUDY    72  70  95 CALM      30.02S TC  22           
SALEM*         CLOUDY    75  70  86 MISG      30.02S TC  24           
METROPOLIS*    PTSUNNY   81  67  64 NE6       29.98F HX  83  TC  27   
$$


SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Mermet, IL

Today
Mostly Cloudy
85°/ 65° 29°/ 18°
20%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wednesday
Sunny
78°/ 55° 26°/ 13°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
78°26°
0%
Sat Night
Cloudy
78°26°
0%
Sunday
Sunny
82°28°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the mid 80s. Northeast winds around 5 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 20 percent.

Mound City, IL

Today
Mostly Cloudy
88°/ 65° 31°/ 18°
20%
Tuesday
Partly Cloudy
80°/ 58° 27°/ 14°
0%
Wednesday
Sunny
78°/ 55° 26°/ 13°
0%
Thursday
Sunny
78°/ 58° 26°/ 14°
0%
Friday
Cloudy
78°26°
0%
Sat Night
Cloudy
78°26°
0%
Sunday
Sunny
82°28°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the upper 80s. North winds around 5 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the mid 60s. North winds around 5 mph. Chance of rain 20 percent.

Metropolis, IL

Today
Partly Cloudy
88°/ 65° 31°/ 18°
20%
Tuesday
Partly Cloudy
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
78°/ 55° 26°/ 13°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
82°28°
0%
Saturday
Cloudy
82°28°
0%
Sunday
Cloudy
82°28°
0%

Day: Partly sunny. Highs in the upper 80s. North winds around 5 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 20 percent.

Jonesboro, IL

Today
Mostly Cloudy
85°/ 65° 29°/ 18°
20%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wednesday
Sunny
78°/ 55° 26°/ 13°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
80°27°
0%
Saturday
Cloudy
80°27°
0%
Sunday
Cloudy
80°27°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the mid 80s. Northeast winds around 5 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Wickliffe, KY

Today
Partly Cloudy
88°/ 65° 31°/ 18°
20%
Tuesday
Partly Cloudy
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
78°/ 58° 26°/ 14°
0%
Thursday
Sunny
78°/ 58° 26°/ 14°
0%
Friday
Cloudy
78°26°
0%
Sat Night
Cloudy
78°26°
0%
Sunday
Sunny
85°29°
0%

Day: Partly sunny. Highs in the upper 80s. North winds around 5 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 20 percent.

Golconda, IL

Today
Partly Cloudy
88°/ 62° 31°/ 17°
0%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wednesday
Sunny
78°/ 55° 26°/ 13°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
78°26°
0%
Sat Night
Cloudy
78°26°
0%
Sunday
Sunny
82°28°
0%

Day: Partly sunny. Highs in the upper 80s. Northeast winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s. Northeast winds around 5 mph.

Cairo, IL

Today
Mostly Cloudy
88°/ 65° 31°/ 18°
30%
Tuesday
Partly Cloudy
80°/ 58° 27°/ 14°
0%
Wednesday
Sunny
78°/ 58° 26°/ 14°
0%
Thursday
Sunny
78°/ 58° 26°/ 14°
0%
Friday
Cloudy
82°28°
0%
Saturday
Cloudy
82°28°
0%
Sunday
Cloudy
82°28°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the upper 80s. North winds around 5 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 30 percent.

Paducah, KY

Today
Partly Cloudy
90°/ 65° 32°/ 18°
20%
Tuesday
Partly Cloudy
82°/ 60° 28°/ 16°
0%
Wednesday
Sunny
78°/ 58° 26°/ 14°
0%
Thursday
Sunny
78°/ 58° 26°/ 14°
0%
Friday
Cloudy
78°26°
0%
Sat Night
Cloudy
78°26°
0%
Sunday
Sunny
85°29°
0%

Day: Partly sunny. Highs around 90. North winds around 5 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 20 percent.

Herrin, IL

Today
Thunderstorms
85°/ 62° 29°/ 17°
20%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thu Night
Clear
55°13°
0%
Friday
Cloudy
78°26°
0%
Sat Night
Cloudy
78°26°
0%
Sunday
Sunny
82°28°
0%

Day: Mostly cloudy this morning, then partly sunny with a slight chance of showers and thunderstorms this afternoon. Highs in the mid 80s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Night: Mostly cloudy. Lows in the lower 60s. Northeast winds 5 to 10 mph.

Harrisburg, IL

Today
Thunderstorms
85°/ 62° 29°/ 17°
20%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wednesday
Sunny
78°/ 55° 26°/ 13°
0%
Thu Night
Clear
55°13°
0%
Friday
Cloudy
78°26°
0%
Sat Night
Cloudy
78°26°
0%
Sunday
Sunny
82°28°
0%

Day: Mostly cloudy this morning, then partly sunny with a slight chance of showers and thunderstorms this afternoon. Highs in the mid 80s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Night: Mostly cloudy. Lows in the lower 60s. Northeast winds 5 to 10 mph.

Carbondale, IL

Today
Thunderstorms
85°/ 62° 29°/ 17°
20%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thursday
Cloudy
78°26°
0%
Friday
Cloudy
78°26°
0%
Sat Night
Cloudy
78°26°
0%
Sunday
Sunny
82°28°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Highs in the mid 80s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Night: Mostly cloudy. Lows in the lower 60s. Northeast winds 5 to 10 mph.

Bardwell, KY

Today
Partly Cloudy
92°/ 65° 33°/ 18°
20%
Tuesday
Partly Cloudy
82°/ 60° 28°/ 16°
0%
Wednesday
Sunny
78°/ 58° 26°/ 14°
0%
Thursday
Sunny
78°/ 58° 26°/ 14°
0%
Friday
Cloudy
80°27°
0%
Sat Night
Cloudy
80°27°
0%
Sunday
Sunny
85°29°
0%

Day: Partly sunny. Highs in the lower 90s. North winds around 5 mph.

Night: Partly cloudy. A slight chance of showers after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 20 percent.

Sikeston, MO

Today
Mostly Cloudy
88°/ 65° 31°/ 18°
20%
Tuesday
Partly Cloudy
80°/ 58° 27°/ 14°
0%
Wednesday
Sunny
78°/ 55° 26°/ 13°
0%
Thursday
Cloudy
78°26°
0%
Friday
Cloudy
78°26°
0%
Sat Night
Cloudy
78°26°
0%
Sunday
Sunny
82°28°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the upper 80s. North winds around 5 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the mid 60s. North winds 5 to 10 mph. Chance of rain 20 percent.

Smithland, KY

Today
Partly Cloudy
88°/ 65° 31°/ 18°
0%
Tuesday
Partly Cloudy
80°/ 58° 27°/ 14°
0%
Wednesday
Sunny
78°/ 55° 26°/ 13°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
78°26°
0%
Sat Night
Cloudy
78°26°
0%
Sunday
Sunny
82°28°
0%

Day: Partly sunny. Highs in the upper 80s. North winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s. North winds around 5 mph.

Mayfield, KY

Today
Partly Cloudy
92°/ 65° 33°/ 18°
20%
Tuesday
Partly Cloudy
82°/ 62° 28°/ 17°
0%
Wednesday
Sunny
78°/ 58° 26°/ 14°
0%
Thursday
Sunny
78°/ 58° 26°/ 14°
0%
Friday
Cloudy
82°28°
0%
Saturday
Cloudy
82°28°
0%
Sunday
Cloudy
82°28°
0%

Day: Partly sunny. Highs in the lower 90s. North winds around 5 mph.

Night: Partly cloudy. A slight chance of showers after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 20 percent.

Charleston, MO

Today
Partly Cloudy
88°/ 65° 31°/ 18°
20%
Tuesday
Partly Cloudy
82°/ 60° 28°/ 16°
0%
Wednesday
Sunny
78°/ 58° 26°/ 14°
0%
Thursday
Sunny
78°/ 58° 26°/ 14°
0%
Friday
Cloudy
78°26°
0%
Sat Night
Cloudy
78°26°
0%
Sunday
Sunny
85°29°
0%

Day: Partly sunny. Highs in the upper 80s. North winds around 5 mph.

Night: Partly cloudy. A slight chance of showers after midnight. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Cape Girardeau, MO

Today
Thunderstorms
85°/ 62° 29°/ 17°
20%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thursday
Cloudy
78°26°
0%
Friday
Cloudy
78°26°
0%
Sat Night
Cloudy
78°26°
0%
Sunday
Sunny
82°28°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Highs in the mid 80s. North winds around 5 mph. Chance of rain 20 percent.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the lower 60s. North winds 5 to 10 mph. Chance of rain 20 percent.

Elizabethtown, IL

Today
Mostly Cloudy
85°/ 62° 29°/ 17°
0%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thu Night
Clear
55°13°
0%
Friday
Cloudy
75°24°
0%
Sat Night
Cloudy
75°24°
0%
Sunday
Sunny
82°28°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the mid 80s. North winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the lower 60s. North winds around 5 mph.

Benton, KY

Today
Partly Cloudy
90°/ 65° 32°/ 18°
0%
Tuesday
Mostly Cloudy
82°/ 62° 28°/ 17°
0%
Wednesday
Sunny
78°/ 58° 26°/ 14°
0%
Thursday
Sunny
78°/ 58° 26°/ 14°
0%
Friday
Cloudy
82°28°
0%
Saturday
Cloudy
82°28°
0%
Sunday
Cloudy
82°28°
0%

Day: Partly sunny. Highs around 90. North winds around 5 mph.

Night: Partly cloudy. Lows in the mid 60s. North winds around 5 mph.

Perryville, MO

Today
Thunderstorms
82°/ 62° 28°/ 17°
20%
Tuesday
Mostly Cloudy
75°/ 55° 24°/ 13°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thursday
Cloudy
75°24°
0%
Friday
Cloudy
75°24°
0%
Sat Night
Cloudy
75°24°
0%
Sunday
Sunny
82°28°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Highs in the lower 80s. North winds around 5 mph. Chance of rain 20 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the lower 60s. North winds 5 to 10 mph. Chance of rain 20 percent.

Names listed above may include county names.

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