Summit School, IL Weather Forecast & Current Conditions

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Summit School Weather Map
UTC Time: 9/17/2026, 15:59
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Summit School, IL Regional Weather

Expires:202609171700;;607203
ASUS43 KLOT 171558
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM CDT THU SEP 17 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>023-171700-
NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLOUDY    72  70  93 SW6       30.21S TC  22           
CHICAGO-MIDWAY NOT AVBL                                               
AURORA         PTSUNNY   75  72  90 S7        30.22S TC  24           
WAUKEGAN       CLOUDY    69  68  96 CALM      30.22R FOG     TC  21   
DUPAGE AIRPORT PTSUNNY   74  71  91 SW7       30.22S TC  23           
WHEELING       CLOUDY    69  68  96 CALM      30.24R TC  21           
NORTHERLY ISL*   N/A     71  68  90 SW6         N/A  TC  22           
$$


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

Summit School, IL

Today
Rain Showers
75°/ 62° 24°/ 17°
40%
Friday
Rain Showers
75°/ 62° 24°/ 17°
70%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
90%
Sunday
Thunderstorms
70°/ 55° 21°/ 13°
50%
Monday
Rain Showers
65°/ 52° 18°/ 11°
60%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Cloudy
72°22°
0%

Day: Mostly cloudy. A chance of showers late in the morning. Highs in the mid 70s. East winds around 5 mph, becoming north in the afternoon. Chance of precipitation 40 percent.

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

Evanston, IL

Today
Rain Showers
75°/ 62° 24°/ 17°
40%
Friday
Mostly Cloudy
72°/ 62° 22°/ 17°
70%
Saturday
Thunderstorms
78°/ 62° 26°/ 17°
90%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Rain Showers
65°/ 55° 18°/ 13°
60%
Tuesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Wednesday
Cloudy
72°22°
0%

Day: Cloudy. A chance of showers late in the morning. Highs in the mid 70s. Northeast winds 5 to 10 mph. Chance of precipitation 40 percent.

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

Crystal Lake, IL

Today
Rain Showers
72°/ 58° 22°/ 14°
40%
Friday
Rain Showers
72°/ 62° 22°/ 17°
80%
Saturday
Thunderstorms
78°/ 62° 26°/ 17°
100%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Rain Showers
65°/ 52° 18°/ 11°
60%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Wednesday
Cloudy
72°22°
0%

Day: Cloudy. A chance of showers late in the morning. Highs in the lower 70s. Northeast winds around 5 mph. Chance of precipitation 40 percent.

Night: Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.

Naperville, IL

Today
Rain Showers
78°/ 65° 26°/ 18°
40%
Friday
Mostly Cloudy
75°/ 65° 24°/ 18°
70%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Sunday
Thunderstorms
70°/ 58° 21°/ 14°
50%
Monday
Rain Showers
65°/ 55° 18°/ 13°
60%
Tuesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Wednesday
Cloudy
72°22°
0%

Day: Mostly cloudy. A chance of showers late in the morning. Highs in the upper 70s. Southeast winds around 5 mph, becoming north in the afternoon. Chance of precipitation 40 percent.

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

Waukegan, IL

Today
Rain Showers
72°/ 62° 22°/ 17°
40%
Friday
Rain Showers
72°/ 62° 22°/ 17°
80%
Saturday
Thunderstorms
78°/ 62° 26°/ 17°
100%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Rain Showers
65°/ 52° 18°/ 11°
60%
Tuesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Wednesday
Cloudy
70°21°
0%

Day: Cloudy. A chance of showers late in the morning. Highs in the lower 70s. Northeast winds 5 to 10 mph. Chance of precipitation 40 percent.

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

Chicago, IL

Today
Rain Showers
75°/ 65° 24°/ 18°
50%
Friday
Mostly Cloudy
72°/ 65° 22°/ 18°
70%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Sunday
Thunderstorms
70°/ 58° 21°/ 14°
50%
Monday
Rain Showers
65°/ 55° 18°/ 13°
60%
Tuesday
Mostly Cloudy
68°/ 58° 20°/ 14°
0%
Wednesday
Cloudy
72°22°
0%

Day: Mostly cloudy. A chance of showers late in the morning. Highs in the mid 70s. East winds around 5 mph, becoming north in the afternoon. Chance of precipitation 50 percent.

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

DeKalb, IL

Today
Rain Showers
78°/ 62° 26°/ 17°
40%
Friday
Rain Showers
75°/ 62° 24°/ 17°
70%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
90%
Sunday
Thunderstorms
70°/ 55° 21°/ 13°
50%
Monday
Rain Showers
65°/ 52° 18°/ 11°
60%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Cloudy
72°22°
0%

Day: Mostly cloudy. A chance of showers late in the morning. Highs in the upper 70s. Southeast winds around 5 mph, becoming north in the afternoon. Chance of precipitation 40 percent.

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

Belvidere, IL

Today
Rain Showers
75°/ 58° 24°/ 14°
40%
Friday
Rain Showers
75°/ 62° 24°/ 17°
80%
Saturday
Thunderstorms
78°/ 60° 26°/ 16°
90%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Rain Showers
65°/ 50° 18°/ 10°
60%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Wednesday
Cloudy
72°22°
0%

Day: Cloudy. A chance of showers late in the morning. Highs in the mid 70s. Northeast winds around 5 mph. Chance of precipitation 40 percent.

Night: Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.

Oswego, IL

Today
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Mostly Cloudy
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
80%
Sunday
Thunderstorms
72°/ 58° 22°/ 14°
50%
Monday
Rain Showers
68°/ 55° 20°/ 13°
60%
Tuesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Wednesday
Cloudy
75°24°
0%

Day: Mostly cloudy. A chance of showers late in the morning. A slight chance of showers and thunderstorms late. Highs in the upper 70s. South winds around 5 mph, becoming north in the afternoon. Chance of precipitation 50 percent.

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

Joliet, IL

Today
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Mostly Cloudy
75°/ 65° 24°/ 18°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Thunderstorms
72°/ 58° 22°/ 14°
50%
Monday
Rain Showers
68°/ 55° 20°/ 13°
60%
Tuesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Wednesday
Cloudy
72°22°
0%

Day: Mostly cloudy. A chance of showers late in the morning. A slight chance of showers and thunderstorms late. Highs in the upper 70s. South winds around 5 mph, becoming north in the afternoon. Chance of precipitation 50 percent.

Night: Mostly cloudy. Lows in the mid 60s. Northeast winds around 5 mph.

Whitewater, WI

Today
Thunderstorms
72°/ 58° 22°/ 14°
90%
Friday
Rain Showers
72°/ 62° 22°/ 17°
90%
Saturday
Thunderstorms
75°/ 58° 24°/ 14°
100%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
40%
Monday
Rain Showers
62°/ 50° 17°/ 10°
50%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
20%
Wednesday
Partly Cloudy
70°21°
0%

Day: Cloudy. Light showers and slight chance of thunderstorms in the morning, then chance of light showers late in the morning. Highs in the lower 70s. Northeast winds up to 5 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy until early morning then becoming partly cloudy. Lows in the upper 50s. Northeast winds up to 5 mph.

Kenosha, WI

Today
Thunderstorms
72°/ 58° 22°/ 14°
90%
Friday
Rain Showers
72°/ 62° 22°/ 17°
90%
Saturday
Thunderstorms
75°/ 58° 24°/ 14°
100%
Sunday
Rain Showers
68°/ 52° 20°/ 11°
40%
Monday
Rain Showers
65°/ 52° 18°/ 11°
50%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
20%
Wednesday
Partly Cloudy
70°21°
0%

Day: Cloudy. Light showers and slight chance of thunderstorms in the morning, then chance of light showers late in the morning. Highs in the lower 70s. Northeast winds up to 10 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy until early morning then becoming partly cloudy. Lows in the upper 50s. Northeast winds 5 to 10 mph.

Calumet City, IL

Today
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Mostly Cloudy
75°/ 65° 24°/ 18°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
80%
Sunday
Thunderstorms
72°/ 58° 22°/ 14°
50%
Monday
Rain Showers
68°/ 55° 20°/ 13°
60%
Tuesday
Mostly Cloudy
68°/ 58° 20°/ 14°
0%
Wednesday
Cloudy
72°22°
0%

Day: Mostly cloudy. A chance of showers late in the morning. A slight chance of showers and thunderstorms late. Highs in the upper 70s. South winds around 5 mph, becoming north in the afternoon. Chance of precipitation 50 percent.

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

Rockford, IL

Today
Rain Showers
75°/ 58° 24°/ 14°
40%
Friday
Rain Showers
75°/ 62° 24°/ 17°
80%
Saturday
Thunderstorms
78°/ 60° 26°/ 16°
90%
Sunday
Rain Showers
68°/ 52° 20°/ 11°
50%
Monday
Rain Showers
65°/ 50° 18°/ 10°
50%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Wednesday
Cloudy
72°22°
0%

Day: Cloudy. A chance of showers late in the morning. Highs in the mid 70s. Northeast winds around 5 mph. Chance of precipitation 40 percent.

Night: Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.

Rochelle, IL

Today
Rain Showers
75°/ 60° 24°/ 16°
20%
Friday
Rain Showers
75°/ 62° 24°/ 17°
70%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
90%
Sunday
Thunderstorms
68°/ 55° 20°/ 13°
50%
Monday
Rain Showers
65°/ 52° 18°/ 11°
60%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Cloudy
72°22°
0%

Day: Mostly cloudy. A slight chance of showers late in the morning. Highs in the mid 70s. Northeast winds around 5 mph. Chance of precipitation 20 percent.

Night: Mostly cloudy. Lows around 60. Northeast winds around 5 mph.

Racine, WI

Today
Thunderstorms
70°/ 58° 21°/ 14°
50%
Friday
Rain Showers
72°/ 62° 22°/ 17°
90%
Saturday
Thunderstorms
75°/ 58° 24°/ 14°
100%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
40%
Monday
Rain Showers
62°/ 52° 17°/ 11°
50%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
20%
Wednesday
Partly Cloudy
68°20°
0%

Day: Cloudy. Chance of light showers and slight chance of thunderstorms in the morning, then chance of light showers late in the morning. Highs around 70. Northeast winds up to 10 mph. Chance of precipitation 50 percent.

Night: Mostly cloudy through around midnight then becoming partly cloudy. Lows in the upper 50s. Northeast winds up to 10 mph.

Dixon, IL

Today
Rain Showers
78°/ 62° 26°/ 17°
20%
Friday
Rain Showers
75°/ 65° 24°/ 18°
70%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Thunderstorms
72°/ 55° 22°/ 13°
50%
Monday
Rain Showers
65°/ 52° 18°/ 11°
60%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Cloudy
72°22°
0%

Day: Mostly cloudy. A slight chance of showers late in the morning. Highs in the upper 70s. Southwest winds around 5 mph, becoming north in the afternoon. Chance of precipitation 20 percent.

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

Ottawa, IL

Today
Thunderstorms
82°/ 65° 28°/ 18°
50%
Friday
Rain Showers
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Sunday
Thunderstorms
75°/ 58° 24°/ 14°
60%
Monday
Rain Showers
68°/ 55° 20°/ 13°
60%
Tuesday
Mostly Cloudy
70°/ 55° 21°/ 13°
0%
Wednesday
Cloudy
75°24°
0%

Day: Mostly cloudy. A chance of showers late in the morning. A slight chance of showers and thunderstorms late. Highs in the lower 80s. South winds around 5 mph, becoming northwest in the afternoon. Chance of precipitation 50 percent.

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

Janesville, WI

Today
Thunderstorms
72°/ 55° 22°/ 13°
90%
Friday
Rain Showers
72°/ 62° 22°/ 17°
90%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
100%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
50%
Monday
Rain Showers
62°/ 50° 17°/ 10°
50%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
20%
Wednesday
Partly Cloudy
70°21°
0%

Day: Cloudy. Light showers and slight chance of thunderstorms in the morning, then slight chance of light showers late in the morning. Highs in the lower 70s. Northeast winds up to 5 mph. Chance of precipitation 90 percent.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds up to 10 mph.

Morris, IL

Today
Thunderstorms
82°/ 65° 28°/ 18°
50%
Friday
Mostly Cloudy
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
88°/ 68° 31°/ 20°
70%
Sunday
Thunderstorms
75°/ 58° 24°/ 14°
60%
Monday
Rain Showers
68°/ 55° 20°/ 13°
60%
Tuesday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Wednesday
Cloudy
75°24°
0%

Day: Mostly cloudy. A chance of showers late in the morning. A slight chance of showers and thunderstorms late. Highs in the lower 80s. South winds around 5 mph, becoming northwest in the afternoon. Chance of precipitation 50 percent.

Night: Mostly cloudy. A slight chance of showers late. Humid with lows in the mid 60s. Northeast winds around 5 mph. Chance of precipitation 20 percent.

Names listed above may include county names.

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