Janusick, IL Weather Forecast & Current Conditions

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Janusick Weather Map
UTC Time: 9/18/2026, 15:59
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Janusick, IL Regional Weather

Expires:202609181700;;660911
ASUS43 KLOT 181556
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM CDT FRI SEP 18 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>023-181700-
NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  PTSUNNY   71  57  61 NE16      30.28S TC  22           
CHICAGO-MIDWAY NOT AVBL                                               
AURORA         PTSUNNY   70  57  63 NE13      30.28S TC  21           
WAUKEGAN       MOSUNNY   69  60  73 NE7G17    30.31R TC  21           
DUPAGE AIRPORT CLOUDY    69  56  62 NE13      30.28S TC  21           
WHEELING       MOSUNNY   70  55  59 E7G23     30.32R TC  21           
NORTHERLY ISL*   N/A     69  56  62 E16         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

Janusick, IL

Today
Rain Showers
75°/ 65° 24°/ 18°
70%
Saturday
Thunderstorms
78°/ 65° 26°/ 18°
100%
Sunday
Thunderstorms
72°/ 55° 22°/ 13°
80%
Monday
Thunderstorms
65°/ 52° 18°/ 11°
70%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Cloudy
70°21°
0%

Day: Mostly cloudy. Isolated showers late in the morning, then scattered showers late in the morning. Isolated showers in the afternoon. Highs in the mid 70s. East winds 5 to 10 mph. Chance of precipitation 30 percent.

Night: Partly cloudy in the evening, then becoming cloudy. A chance of showers and thunderstorms after midnight. Showers and thunderstorms likely late. Lows in the mid 60s. East winds around 10 mph. Chance of precipitation 70 percent.

Hennepin, IL

Today
Rain Showers
75°/ 65° 24°/ 18°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Sunday
Rain Showers
72°/ 55° 22°/ 13°
90%
Monday
Rain Showers
65°/ 52° 18°/ 11°
70%
Tuesday
Partly Cloudy
65°/ 50° 18°/ 10°
0%
Wed Night
Mostly Cloudy
50°10°
0%
Thursday
Sunny
70°21°
0%

Day: Partly sunny with a 40 percent chance of showers. Not as warm with highs in the mid 70s. East winds 5 to 10 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 60s. East winds 5 to 10 mph. Chance of rain 50 percent.

Lacon, IL

Today
Thunderstorms
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Sunday
Rain Showers
75°/ 55° 24°/ 13°
90%
Monday
Rain Showers
65°/ 52° 18°/ 11°
70%
Tuesday
Partly Cloudy
65°/ 50° 18°/ 10°
0%
Wed Night
Mostly Cloudy
50°10°
0%
Thursday
Sunny
70°21°
0%

Day: Mostly cloudy late this morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Cooler with highs in the upper 70s. East winds 5 to 10 mph. Chance of rain 20 percent.

Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 60s. Southeast winds 5 to 10 mph. Chance of rain 50 percent.

Pontiac, IL

Today
Rain Showers
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Sunday
Thunderstorms
75°/ 55° 24°/ 13°
80%
Monday
Thunderstorms
68°/ 52° 20°/ 11°
70%
Tuesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Wednesday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Thursday
Mostly Cloudy
72°22°
0%

Day: Mostly cloudy. Isolated showers. Highs in the upper 70s. East winds 5 to 10 mph. Chance of precipitation 20 percent.

Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the mid 60s. Southeast winds 5 to 10 mph. Chance of precipitation 50 percent.

Princeton, IL

Today
Rain Showers
75°/ 65° 24°/ 18°
70%
Saturday
Thunderstorms
80°/ 65° 27°/ 18°
100%
Sunday
Rain Showers
72°/ 55° 22°/ 13°
90%
Monday
Rain Showers
65°/ 52° 18°/ 11°
70%
Tue-Tue Night
Mostly Cloudy
65°18°
0%
Wednesday
Cloudy
68°20°
0%
Thursday
Cloudy
68°20°
0%

Day: Partly sunny with a 50 percent chance of showers. Not as warm with highs in the mid 70s. East winds 5 to 10 mph.

Night: Partly cloudy in the evening, then mostly cloudy with showers likely with a chance of thunderstorms after midnight. Lows in the mid 60s. Southeast winds 10 to 15 mph. Chance of rain 70 percent.

Eureka, IL

Today
Thunderstorms
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Rain Showers
75°24°
80%
Sun Night-Mon
Thunderstorms
55°13°
70%
Mon Night
Rain Showers
52°11°
40%
Tuesday
Rain Showers
65°/ 50° 18°/ 10°
30%
Wednesday
Sunny
68°/ 50° 20°/ 10°
0%
Thursday
Sunny
72°22°
0%

Day: Mostly cloudy late this morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Cooler with highs in the upper 70s. East winds 5 to 10 mph. Chance of rain 20 percent.

Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 60s. Southeast winds 5 to 10 mph. Chance of rain 50 percent.

Peoria, IL

Today
Thunderstorms
78°/ 68° 26°/ 20°
40%
Saturday
Thunderstorms
85°/ 68° 29°/ 20°
80%
Sunday
Rain Showers
75°24°
80%
Sun Night-Mon
Thunderstorms
58°14°
70%
Mon Night
Rain Showers
55°13°
40%
Tue-Tue Night
Mostly Cloudy
65°18°
0%
Wednesday
Sunny
68°/ 52° 20°/ 11°
0%
Thursday
Sunny
72°22°
0%

Day: Mostly cloudy late this morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Cooler with highs in the upper 70s. East winds 5 to 10 mph. Chance of rain 20 percent.

Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 40 percent.

Morris, IL

Today
Rain Showers
78°/ 62° 26°/ 17°
70%
Saturday
Thunderstorms
80°/ 65° 27°/ 18°
100%
Sunday
Thunderstorms
72°/ 55° 22°/ 13°
80%
Monday
Thunderstorms
65°/ 52° 18°/ 11°
70%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
72°22°
0%

Day: Mostly cloudy. Isolated showers. Highs in the upper 70s. East winds 5 to 10 mph. Chance of precipitation 20 percent.

Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms after midnight. Showers and thunderstorms likely late. Lows in the lower 60s. East winds 5 to 10 mph. Chance of precipitation 70 percent.

Toulon, IL

Today
Thunderstorms
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Sunday
Rain Showers
72°/ 55° 22°/ 13°
90%
Monday
Rain Showers
65°/ 52° 18°/ 11°
70%
Tue-Tue Night
Mostly Cloudy
65°18°
0%
Wednesday
Sunny
65°/ 50° 18°/ 10°
0%
Thursday
Sunny
70°21°
0%

Day: Mostly cloudy late this morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Cooler with highs in the upper 70s. East winds around 10 mph. Chance of rain 20 percent.

Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 60s. Southeast winds around 10 mph with gusts up to 20 mph. Chance of rain 50 percent.

Bloomington, IL

Today
Thunderstorms
80°/ 65° 27°/ 18°
40%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
78°26°
70%
Sun Night-Mon
Thunderstorms
58°14°
70%
Mon Night-Tue
Rain Showers
52°11°
30%
Tue Night
Mostly Cloudy
50°10°
0%
Wednesday
Sunny
68°/ 50° 20°/ 10°
0%

Day: Cloudy late this morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Not as warm with highs around 80. East winds 5 to 10 mph. Chance of rain 20 percent.

Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 60s. Southeast winds around 10 mph. Chance of rain 40 percent.

Pekin, IL

Today
Thunderstorms
82°/ 68° 28°/ 20°
40%
Saturday
Thunderstorms
85°/ 68° 29°/ 20°
70%
Sunday
Rain Showers
78°26°
80%
Sun Night-Mon
Thunderstorms
58°14°
70%
Mon Night
Rain Showers
55°13°
40%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
30%
Wednesday
Cloudy
70°21°
0%
Thursday
Cloudy
70°21°
0%

Day: Mostly cloudy late this morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Not as warm with highs in the lower 80s. East winds 5 to 10 mph. Chance of rain 20 percent.

Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 40 percent.

Dixon, IL

Today
Rain Showers
72°/ 62° 22°/ 17°
80%
Saturday
Thunderstorms
78°/ 62° 26°/ 17°
100%
Sunday
Thunderstorms
68°/ 52° 20°/ 11°
80%
Monday
Rain Showers
62°/ 50° 17°/ 10°
60%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Mostly Cloudy
65°/ 48° 18°/
0%
Thursday
Cloudy
68°20°
0%

Day: Mostly cloudy. Isolated showers late in the morning, then scattered showers in the late morning and early afternoon. Isolated showers late. Highs in the lower 70s. East winds 5 to 10 mph. Chance of precipitation 30 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers with thunderstorms likely after midnight. Lows in the lower 60s. Southeast winds 10 to 15 mph. Chance of precipitation 80 percent.

Oswego, IL

Today
Rain Showers
75°/ 62° 24°/ 17°
70%
Saturday
Thunderstorms
78°/ 65° 26°/ 18°
100%
Sunday
Thunderstorms
70°/ 55° 21°/ 13°
80%
Monday
Thunderstorms
65°/ 52° 18°/ 11°
60%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Wednesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Thursday
Mostly Cloudy
70°21°
0%

Day: Mostly cloudy. Isolated showers. Highs in the mid 70s. East winds around 10 mph. Chance of precipitation 20 percent.

Night: Mostly cloudy. A chance of showers and thunderstorms after midnight. Showers and thunderstorms likely late. Lows in the lower 60s. East winds around 10 mph. Chance of precipitation 70 percent.

DeKalb, IL

Today
Rain Showers
72°/ 60° 22°/ 16°
90%
Saturday
Thunderstorms
75°/ 62° 24°/ 17°
100%
Sunday
Thunderstorms
68°/ 52° 20°/ 11°
70%
Monday
Rain Showers
62°/ 48° 17°/
60%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Mostly Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
68°20°
0%

Day: Mostly cloudy. Isolated showers. Highs in the lower 70s. East winds 10 to 15 mph. Chance of precipitation 20 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers with thunderstorms likely after midnight. Lows around 60. East winds 10 to 15 mph. Chance of precipitation 90 percent.

Geneseo, IL

Today
Thunderstorms
75°/ 65° 24°/ 18°
70%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Sunday
Thunderstorms
72°/ 55° 22°/ 13°
90%
Monday
Rain Showers
62°/ 52° 17°/ 11°
70%
Tuesday
Mostly Cloudy
62°/ 50° 17°/ 10°
0%
Wednesday
Cloudy
50°10°
0%
Thursday
Cloudy
50°10°
0%

Day: Mostly cloudy late this morning, then becoming partly sunny. A chance of showers with a slight chance of thunderstorms. Not as warm with highs in the mid 70s. East winds around 10 mph. Chance of rain 50 percent.

Night: Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy with showers likely with a chance of thunderstorms after midnight. Humid with lows in the mid 60s. Southeast winds around 10 mph with gusts up to 20 mph. Chance of rain 70 percent.

Sterling, IL

Today
Thunderstorms
75°/ 62° 24°/ 17°
80%
Saturday
Thunderstorms
78°/ 62° 26°/ 17°
100%
Sunday
Rain Showers
68°/ 52° 20°/ 11°
70%
Monday
Rain Showers
65°/ 50° 18°/ 10°
70%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Cloudy
48°
0%
Thursday
Cloudy
48°
0%

Day: Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the mid 70s. East winds around 10 mph. Chance of rain 50 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers with a chance of thunderstorms after midnight. Humid with lows in the lower 60s. Southeast winds around 10 mph. Chance of rain 80 percent.

Kankakee, IL

Today
Rain Showers
75°/ 60° 24°/ 16°
60%
Saturday
Thunderstorms
78°/ 65° 26°/ 18°
100%
Sunday
Thunderstorms
72°/ 55° 22°/ 13°
80%
Monday
Thunderstorms
65°/ 52° 18°/ 11°
70%
Tuesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Wednesday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Thursday
Mostly Cloudy
70°21°
0%

Day: Mostly cloudy. Isolated showers in the late morning and afternoon. Highs in the mid 70s. East winds 5 to 10 mph. Chance of precipitation 20 percent.

Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms after midnight. Showers and thunderstorms likely late. Lows around 60. East winds 5 to 10 mph. Chance of precipitation 60 percent.

Channahon, IL

Today
Rain Showers
75°/ 62° 24°/ 17°
70%
Saturday
Thunderstorms
78°/ 65° 26°/ 18°
100%
Sunday
Thunderstorms
72°/ 55° 22°/ 13°
80%
Monday
Thunderstorms
65°/ 52° 18°/ 11°
70%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
70°21°
0%

Day: Mostly cloudy. Isolated showers in the late morning and afternoon. Highs in the mid 70s. East winds 5 to 10 mph. Chance of precipitation 20 percent.

Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms after midnight. Showers and thunderstorms likely late. Lows in the lower 60s. East winds 5 to 10 mph. Chance of precipitation 70 percent.

Paxton, IL

Today
Rain Showers
78°/ 62° 26°/ 17°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Thunderstorms
78°/ 55° 26°/ 13°
70%
Monday
Thunderstorms
68°/ 52° 20°/ 11°
70%
Tuesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Wednesday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Thursday
Mostly Cloudy
72°22°
0%

Day: Mostly cloudy. Isolated showers in the late morning and early afternoon. Highs in the upper 70s. Northeast winds 5 to 10 mph. Chance of precipitation 20 percent.

Night: Mostly clear in the evening, then becoming mostly cloudy. A slight chance of showers and thunderstorms after midnight. A chance of showers and thunderstorms late. Lows in the lower 60s. East winds 5 to 10 mph. Chance of precipitation 50 percent.

Galesburg, IL

Today
Thunderstorms
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Sunday
Thunderstorms
75°/ 58° 24°/ 14°
90%
Monday
Rain Showers
65°/ 52° 18°/ 11°
70%
Tue-Tue Night
Mostly Cloudy
62°17°
0%
Wednesday
Sunny
65°/ 52° 18°/ 11°
0%
Thursday
Sunny
70°21°
0%

Day: Mostly cloudy late this morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Cooler with highs in the upper 70s. East winds 5 to 10 mph. Chance of rain 20 percent.

Night: Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 60s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent.

Names listed above may include county names.

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