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Mendota Weather Map
UTC Time: 9/12/2026, 12:27
Your Time:

Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Mendota, IL Regional Weather

Expires:202609121300;;324337
ASUS43 KLOT 121210
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 AM CDT SAT SEP 12 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.


ILZ005-006-012>014-019>023-121300-
NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  PTCLDY    66  63  90 S5        29.87R TC  19           
6HR MIN TEMP:  66; 6HR MAX TEMP:  70;                                

CHICAGO-MIDWAY MOCLDY    69  64  84 S5        29.87R TC  21           
6HR MIN TEMP:  68; 6HR MAX TEMP:  71;                                

AURORA         CLEAR     60  59  96 CALM      29.88R FOG     TC  16   
6HR MIN TEMP:  59; 6HR MAX TEMP:  63;                                

JOLIET*        CLEAR     63  63 100 CALM      29.88R FOG     TC  17   
WAUKEGAN       PTCLDY    64  61  90 SW6       29.86R TC  18           
6HR MIN TEMP:  61; 6HR MAX TEMP:  68;                                

DUPAGE AIRPORT CLEAR     62  60  93 CALM      29.89R TC  17           
6HR MIN TEMP:  61; 6HR MAX TEMP:  65;                                

KANKAKEE*      MOCLDY    62  60  94 CALM      29.89R TC  17           
WHEELING       CLEAR     63  61  93 CALM      29.89R TC  17           
6HR MIN TEMP:  61; 6HR MAX TEMP:  66;                                

LANSING*       MOCLDY    64  63  96 CALM      29.88S TC  18           
NORTHERLY ISL*   N/A     69  63  81 SW5         N/A  TC  21           
$$


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
il
lot
mendota
41.55090
-89.12010
ilz019

Plymouth, WI

This Morning
Cloudy
55°13°
0%
Today
Partly Cloudy
82°28°
0%
Sunday
Rain Showers
68°/ 52° 20°/ 11°
30%
Monday
Rain Showers
68°/ 60° 20°/ 16°
90%
Tuesday
Thunderstorms
75°/ 55° 24°/ 13°
50%
Wednesday
Rain Showers
68°/ 55° 20°/ 13°
60%
Thursday
Rain Showers
72°/ 52° 22°/ 11°
30%

Day: Partly cloudy. Southwest winds 5 to 10 mph.

Night: Mostly clear. Lows in the mid 50s. Northwest winds 5 to 10 mph.

Fond Du Lac, WI

This Morning
Cloudy
52°11°
0%
Today
Partly Cloudy
80°27°
0%
Sunday
Rain Showers
65°/ 45° 18°/
20%
Monday
Rain Showers
68°/ 58° 20°/ 14°
100%
Tuesday
Thunderstorms
75°/ 55° 24°/ 13°
50%
Wednesday
Rain Showers
68°/ 55° 20°/ 13°
60%
Thursday
Rain Showers
72°/ 52° 22°/ 11°
30%

Day: Partly cloudy. South winds 5 to 15 mph.

Night: Mostly clear. Lows in the lower 50s. Northwest winds up to 10 mph.

Mequon, WI

This Morning
Cloudy
55°13°
0%
Today
Partly Cloudy
82°28°
0%
Sunday
Rain Showers
68°/ 48° 20°/
30%
Monday
Rain Showers
68°/ 60° 20°/ 16°
80%
Tuesday
Thunderstorms
78°/ 55° 26°/ 13°
60%
Wednesday
Thunderstorms
70°/ 58° 21°/ 14°
60%
Thursday
Rain Showers
72°/ 55° 22°/ 13°
30%

Day: Partly cloudy. Southwest winds 5 to 10 mph.

Night: Partly cloudy in the evening then becoming mostly clear. Lows in the mid 50s. Northwest winds 5 to 10 mph.

West Bend, WI

This Morning
Cloudy
52°11°
0%
Today
Partly Cloudy
82°28°
0%
Sunday
Rain Showers
65°/ 45° 18°/
40%
Monday
Rain Showers
68°/ 60° 20°/ 16°
90%
Tuesday
Thunderstorms
75°/ 55° 24°/ 13°
60%
Wednesday
Thunderstorms
68°/ 55° 20°/ 13°
60%
Thursday
Thunderstorms
72°/ 52° 22°/ 11°
30%

Day: Partly cloudy. South winds up to 10 mph.

Night: Partly cloudy in the evening then becoming mostly clear. Lows in the lower 50s. Northwest winds up to 5 mph.

Milwaukee, WI

This Morning
Cloudy
55°13°
0%
Today
Partly Cloudy
82°28°
0%
Sunday
Rain Showers
68°/ 52° 20°/ 11°
40%
Monday
Rain Showers
68°/ 62° 20°/ 17°
70%
Tuesday
Thunderstorms
78°/ 58° 26°/ 14°
60%
Wednesday
Thunderstorms
72°/ 58° 22°/ 14°
70%
Thursday
Rain Showers
72°/ 55° 22°/ 13°
30%

Day: Partly cloudy. South winds 5 to 10 mph.

Night: Mostly clear. Lows in the mid 50s. Northwest winds 5 to 10 mph.

Beaver Dam, WI

This Morning
Cloudy
52°11°
0%
Today
Partly Cloudy
80°27°
0%
Sunday
Rain Showers
65°/ 45° 18°/
40%
Monday
Rain Showers
68°/ 60° 20°/ 16°
90%
Tuesday
Thunderstorms
75°/ 55° 24°/ 13°
50%
Wednesday
Thunderstorms
70°/ 55° 21°/ 13°
60%
Thursday
Thunderstorms
72°/ 52° 22°/ 11°
30%

Day: Partly cloudy. South winds 5 to 10 mph.

Night: Mostly clear. Lows in the lower 50s. Northwest winds up to 10 mph.

Waukesha, WI

This Morning
Cloudy
55°13°
0%
Today
Partly Cloudy
82°28°
0%
Sunday
Rain Showers
68°/ 48° 20°/
40%
Monday
Rain Showers
68°/ 62° 20°/ 17°
80%
Tuesday
Thunderstorms
78°/ 58° 26°/ 14°
60%
Wednesday
Thunderstorms
70°/ 58° 21°/ 14°
70%
Thursday
Thunderstorms
72°/ 55° 22°/ 13°
30%

Day: Partly cloudy. South winds around 5 mph.

Night: Partly cloudy in the evening then becoming mostly clear. Lows in the mid 50s. Northwest winds up to 10 mph.

Berlin, WI

This Morning
Mostly Cloudy
52°11°
0%
Today
Partly Cloudy
78°26°
0%
Sunday
Rain Showers
65°/ 45° 18°/
30%
Monday
Rain Showers
68°/ 58° 20°/ 14°
100%
Tuesday
Thunderstorms
75°/ 52° 24°/ 11°
30%
Wednesday
Rain Showers
68°/ 55° 20°/ 13°
50%
Thursday
Thunderstorms
72°/ 52° 22°/ 11°
20%

Day: Mostly cloudy. South winds 5 to 15 mph.

Night: Cooler. Mostly clear. Lows in the lower 50s. Northwest winds up to 10 mph.

Coldwater, MI

Today
Mostly Cloudy
82°/ 60° 28°/ 16°
0%
Sunday
Cloudy
78°/ 48° 26°/
0%
Monday
Sunny
72°/ 55° 22°/ 13°
0%
Tuesday
Thunderstorms
85°/ 62° 29°/ 17°
70%
Wednesday
Thunderstorms
80°/ 62° 27°/ 17°
70%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
70%

Day: Mostly cloudy. Highs in the lower 80s. Southwest winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly clear. Lows around 60. West winds 5 to 10 mph.

Hillsdale, MI

Today
Cloudy
82°/ 62° 28°/ 17°
0%
Sunday
Cloudy
78°/ 48° 26°/
0%
Monday
Sunny
72°/ 55° 22°/ 13°
0%
Tuesday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Wednesday
Thunderstorms
80°/ 62° 27°/ 17°
70%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
70%

Day: Cloudy. Highs in the lower 80s. South winds 5 to 10 mph.

Night: Mostly clear. Lows in the lower 60s. Southwest winds 5 to 10 mph, becoming northwest after midnight.

Benton Harbor, MI

Today
Cloudy
82°/ 62° 28°/ 17°
0%
Sunday
Thunderstorms
75°/ 50° 24°/ 10°
40%
Monday
Sunny
75°/ 58° 24°/ 14°
30%
Tuesday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Wednesday
Thunderstorms
78°/ 62° 26°/ 17°
70%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
70%

Day: Partly cloudy. Highs in the lower 80s. South winds 5 to 10 mph, becoming southwest with gusts up to 20 mph this afternoon.

Night: Mostly clear. Lows in the lower 60s. West winds 5 to 10 mph, becoming northwest after midnight.

Sturgis, MI

Today
Cloudy
85°/ 62° 29°/ 17°
0%
Sunday
Thunderstorms
78°/ 48° 26°/
20%
Monday
Sunny
72°/ 58° 22°/ 14°
20%
Tuesday
Thunderstorms
85°/ 62° 29°/ 17°
70%
Wednesday
Thunderstorms
80°/ 65° 27°/ 18°
70%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
70%

Day: Partly cloudy. Highs in the mid 80s. Southwest winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly clear. Lows in the lower 60s. Northwest winds 5 to 10 mph. Gusts up to 20 mph in the evening.

Racine, WI

This Morning
Cloudy
55°13°
0%
Today
Sunny
82°28°
0%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
20%
Monday
Partly Cloudy
68°/ 62° 20°/ 17°
60%
Tuesday
Thunderstorms
78°/ 58° 26°/ 14°
60%
Wednesday
Thunderstorms
72°/ 58° 22°/ 14°
70%
Thursday
Rain Showers
72°/ 55° 22°/ 13°
40%

Day: Partly cloudy. South winds 5 to 10 mph.

Night: Mostly clear. Lows in the mid 50s. Northwest winds 5 to 10 mph.

Dowagiac, MI

Today
Cloudy
85°/ 62° 29°/ 17°
0%
Sunday
Thunderstorms
78°/ 48° 26°/
30%
Monday
Sunny
75°/ 58° 24°/ 14°
20%
Tuesday
Thunderstorms
85°/ 62° 29°/ 17°
80%
Wednesday
Thunderstorms
80°/ 62° 27°/ 17°
70%
Thursday
Thunderstorms
78°/ 58° 26°/ 14°
70%

Day: Partly cloudy. Highs in the mid 80s. South winds around 5 mph, becoming southwest with gusts up to 20 mph this afternoon.

Night: Mostly clear. Lows in the lower 60s. Northwest winds 5 to 10 mph. Gusts up to 20 mph in the evening.

Montello, WI

This Morning
Sprinkles
50°10°
0%
Today
Partly Cloudy
78°26°
0%
Sunday
Rain Showers
65°/ 42° 18°/
30%
Monday
Rain Showers
68°/ 58° 20°/ 14°
100%
Tuesday
Rain Showers
72°/ 52° 22°/ 11°
30%
Wednesday
Rain Showers
68°/ 52° 20°/ 11°
50%
Thursday
Thunderstorms
70°/ 50° 21°/ 10°
30%

Day: Mostly cloudy. Scattered sprinkles. South winds 5 to 10 mph.

Night: Cooler. Partly cloudy. Lows around 50. Northwest winds up to 5 mph.

Niles, MI

Today
Cloudy
85°/ 62° 29°/ 17°
0%
Sunday
Thunderstorms
75°/ 50° 24°/ 10°
40%
Monday
Sunny
75°/ 60° 24°/ 16°
30%
Tuesday
Thunderstorms
85°/ 62° 29°/ 17°
80%
Wednesday
Thunderstorms
78°/ 62° 26°/ 17°
80%
Thursday
Thunderstorms
78°/ 58° 26°/ 14°
70%

Day: Partly cloudy. Highs in the mid 80s. South winds around 5 mph, becoming west this afternoon.

Night: Mostly clear. Lows in the lower 60s. West winds 5 to 10 mph, becoming northwest after midnight.

Watertown, WI

This Morning
Cloudy
55°13°
0%
Today
Partly Cloudy
82°28°
0%
Sunday
Rain Showers
68°/ 45° 20°/
50%
Monday
Rain Showers
70°/ 62° 21°/ 17°
80%
Tuesday
Thunderstorms
78°/ 55° 26°/ 13°
60%
Wednesday
Thunderstorms
72°/ 58° 22°/ 14°
70%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
30%

Day: Partly cloudy. South winds 5 to 10 mph.

Night: Partly cloudy then becoming clear in the late evening and early morning then becoming partly cloudy. Lows in the mid 50s. Northwest winds up to 10 mph.

Kenosha, WI

This Morning
Cloudy
55°13°
0%
Today
Sunny
82°28°
0%
Sunday
Rain Showers
72°/ 55° 22°/ 13°
30%
Monday
Partly Cloudy
68°/ 62° 20°/ 17°
50%
Tuesday
Thunderstorms
80°/ 58° 27°/ 14°
70%
Wednesday
Thunderstorms
72°/ 58° 22°/ 14°
80%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
40%

Day: Partly cloudy. South winds around 5 mph.

Night: Partly cloudy through around midnight then becoming mostly clear. Lows in the mid 50s. Northwest winds 5 to 10 mph.

Portage, WI

This Morning
Cloudy
52°11°
0%
Today
Partly Cloudy
78°26°
0%
Sunday
Rain Showers
65°/ 45° 18°/
40%
Monday
Rain Showers
68°/ 58° 20°/ 14°
100%
Tuesday
Thunderstorms
75°/ 52° 24°/ 11°
50%
Wednesday
Rain Showers
68°/ 55° 20°/ 13°
60%
Thursday
Thunderstorms
72°/ 52° 22°/ 11°
30%

Day: Partly cloudy. South winds 5 to 10 mph.

Night: Mostly clear. Lows in the lower 50s. Northwest winds up to 5 mph.

Waukegan, IL

Today
Cloudy
85°/ 58° 29°/ 14°
0%
Sunday
Rain Showers
72°/ 52° 22°/ 11°
40%
Monday
Mostly Cloudy
72°/ 65° 22°/ 18°
50%
Tuesday
Thunderstorms
82°/ 60° 28°/ 16°
70%
Wednesday
Thunderstorms
75°/ 60° 24°/ 16°
80%
Thursday
Rain Showers
75°/ 58° 24°/ 14°
40%

Day: Partly cloudy. Highs in the mid 80s. Southwest winds 10 to 15 mph, becoming west in the afternoon.

Night: Partly cloudy in the evening, then clearing. Less humid with lows in the upper 50s. Northwest winds 5 to 10 mph.

Whitewater, WI

This Morning
Cloudy
55°13°
0%
Today
Sunny
82°28°
0%
Sunday
Rain Showers
68°/ 48° 20°/
40%
Monday
Rain Showers
70°/ 62° 21°/ 17°
70%
Tuesday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Wednesday
Thunderstorms
72°/ 58° 22°/ 14°
80%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
40%

Day: Partly cloudy. South winds around 5 mph.

Night: Mostly clear. Lows in the mid 50s. Northwest winds up to 5 mph.

Angola, IN

Today
Mostly Cloudy
82°/ 62° 28°/ 17°
0%
Sunday
Sunny
78°/ 48° 26°/
0%
Monday
Sunny
72°/ 55° 22°/ 13°
0%
Tuesday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Wednesday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Thursday
Thunderstorms
78°/ 58° 26°/ 14°
70%

Day: Mostly cloudy. Highs in the lower 80s. South winds 5 to 10 mph.

Night: Mostly clear. Lows in the lower 60s. West winds 5 to 10 mph.

Lagrange, IN

Today
Mostly Cloudy
85°/ 62° 29°/ 17°
0%
Sunday
Sunny
78°/ 48° 26°/
0%
Monday
Sunny
72°/ 58° 22°/ 14°
0%
Tuesday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Wednesday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Thursday
Thunderstorms
78°/ 58° 26°/ 14°
70%

Day: Mostly cloudy. Highs in the mid 80s. Southwest winds 5 to 10 mph.

Night: Mostly clear. Lows in the lower 60s. West winds 5 to 10 mph.

Bryan, OH

Today
Thunderstorms
82°/ 62° 28°/ 17°
20%
Sunday
Cloudy
80°/ 48° 27°/
0%
Monday
Sunny
72°/ 55° 22°/ 13°
0%
Tuesday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Wednesday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Thursday
Thunderstorms
80°/ 55° 27°/ 13°
70%

Day: Cloudy with a slight chance of showers and thunderstorms. Highs in the lower 80s. South winds around 5 mph, becoming southwest this afternoon. Chance of rain 20 percent.

Night: Mostly clear. Lows in the lower 60s. West winds 5 to 10 mph.

Elkhart, IN

Today
Cloudy
85°/ 62° 29°/ 17°
0%
Sunday
Thunderstorms
78°/ 50° 26°/ 10°
20%
Monday
Sunny
72°/ 58° 22°/ 14°
0%
Tuesday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Wednesday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Thursday
Thunderstorms
80°/ 58° 27°/ 14°
70%

Day: Partly cloudy. Highs in the mid 80s. Southwest winds 5 to 10 mph.

Night: Mostly clear. Lows in the lower 60s. West winds 5 to 10 mph, becoming northwest after midnight.

Wauseon, OH

Today
Thunderstorms
82°/ 62° 28°/ 17°
40%
Sunday
Cloudy
80°/ 48° 27°/
0%
Monday
Sunny
72°/ 55° 22°/ 13°
0%
Tuesday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Wednesday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Thursday
Thunderstorms
80°/ 58° 27°/ 14°
60%

Day: Cloudy with a slight chance of thunderstorms. A chance of showers, mainly this morning. Highs in the lower 80s. South winds around 5 mph, becoming southwest with gusts up to 20 mph this afternoon. Chance of rain 40 percent.

Night: Mostly clear. Lows in the lower 60s. West winds 5 to 10 mph.

South Bend, IN

Today
Cloudy
85°/ 62° 29°/ 17°
0%
Sunday
Thunderstorms
78°/ 50° 26°/ 10°
30%
Monday
Sunny
75°/ 60° 24°/ 16°
20%
Tuesday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Wednesday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Thursday
Thunderstorms
80°/ 58° 27°/ 14°
70%

Day: Partly cloudy. Highs in the mid 80s. Southwest winds 5 to 10 mph.

Night: Mostly clear. Lows in the lower 60s. West winds 5 to 10 mph, becoming northwest after midnight.

Madison, WI

This Morning
Cloudy
55°13°
0%
Today
Partly Cloudy
82°28°
0%
Sunday
Rain Showers
68°/ 45° 20°/
50%
Monday
Rain Showers
68°/ 62° 20°/ 17°
90%
Tuesday
Thunderstorms
75°/ 55° 24°/ 13°
60%
Wednesday
Thunderstorms
72°/ 58° 22°/ 14°
70%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
30%

Day: Partly cloudy. South winds 5 to 10 mph.

Night: Mostly clear. Lows in the mid 50s. Northwest winds up to 10 mph.

Crystal Lake, IL

Today
Cloudy
85°/ 55° 29°/ 13°
0%
Sunday
Rain Showers
70°/ 48° 21°/
40%
Monday
Rain Showers
72°/ 65° 22°/ 18°
50%
Tuesday
Thunderstorms
80°/ 58° 27°/ 14°
70%
Wednesday
Thunderstorms
75°/ 60° 24°/ 16°
90%
Thursday
Rain Showers
75°/ 55° 24°/ 13°
40%

Day: Partly cloudy. Highs in the mid 80s. Southwest winds 5 to 10 mph, becoming west in the afternoon.

Night: Partly cloudy in the evening, then becoming mostly clear. Less humid with lows in the mid 50s. Northwest winds around 5 mph.

North Liberty, IN

Today
Cloudy
85°/ 62° 29°/ 17°
0%
Sunday
Thunderstorms
78°/ 50° 26°/ 10°
40%
Monday
Sunny
75°/ 60° 24°/ 16°
20%
Tuesday
Thunderstorms
85°/ 62° 29°/ 17°
80%
Wednesday
Thunderstorms
82°/ 65° 28°/ 18°
80%
Thursday
Thunderstorms
78°/ 58° 26°/ 14°
70%

Day: Partly cloudy. Highs in the mid 80s. Southwest winds 5 to 10 mph.

Night: Mostly clear. Lows in the lower 60s. Northwest winds around 5 mph.

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