Watertown, IL Weather Forecast & Current Conditions

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Watertown, IL Weather Maps

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Watertown Weather Map
UTC Time: 10/26/2026, 09:36
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Watertown, IL Regional Weather

Expires:202610261000;;207017
ASUS43 KLOT 260912
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 AM CDT MON OCT 26 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.


ILZ003-004-008-010-011-017-018-261000-
NORTH CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       MOCLDY    49  47  93 N3        30.34F TC   9           
FREEPORT*      MOCLDY    51  50  95 N6        30.36S TC  11           
ROCHELLE*      PTCLDY    49  46  87 CALM      30.33F TC  10           
DE KALB*       PTCLDY    51  45  81 CALM      30.34F TC  10           
$$


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

Watertown, IL

This Morning
Mostly Cloudy
45°7°
0%
Today
Mostly Cloudy
65°18°
0%
Tuesday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Wednesday
Mostly Cloudy
72°/ 55° 22°/ 13°
40%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
40%
Friday
Rain Showers
72°/ 52° 22°/ 11°
40%
Saturday
Rain Showers
70°/ 52° 21°/ 11°
40%
Sunday
Rain Showers
68°20°
30%

Day: Mostly cloudy. Temperatures in the upper 40s. North winds 5 to 10 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 40s. East winds 5 to 10 mph.

Dixon, IL

This Morning
Mostly Cloudy
48°9°
0%
Today
Mostly Cloudy
68°20°
0%
Tuesday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Mostly Cloudy
72°/ 55° 22°/ 13°
20%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
40%
Friday
Rain Showers
72°/ 52° 22°/ 11°
30%
Saturday
Rain Showers
70°/ 52° 21°/ 11°
40%
Sunday
Rain Showers
70°21°
40%

Day: Mostly cloudy. Temperatures around 50. North winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. East winds 5 to 10 mph.

Rockford, IL

This Morning
Mostly Cloudy
45°7°
0%
Today
Mostly Cloudy
65°18°
0%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Mostly Cloudy
72°/ 55° 22°/ 13°
40%
Thursday
Thunderstorms
72°/ 50° 22°/ 10°
40%
Friday
Rain Showers
72°/ 52° 22°/ 11°
40%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
40%
Sunday
Rain Showers
68°20°
40%

Day: Mostly cloudy. Temperatures in the lower 50s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the mid 40s. East winds 5 to 10 mph.

Freeport, IL

Today
Mostly Cloudy
65°/ 45° 18°/ 7°
0%
Tuesday
Partly Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Partly Cloudy
72°/ 55° 22°/ 13°
50%
Thursday
Rain Showers
72°/ 50° 22°/ 10°
50%
Friday
Rain Showers
72°/ 52° 22°/ 11°
40%
Saturday
Rain Showers
68°20°
40%
Sunday
Rain Showers
68°20°
40%

Day: Mostly cloudy. Not as warm with highs in the mid 60s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the mid 40s. East winds 10 to 15 mph.

DeKalb, IL

This Morning
Mostly Cloudy
48°9°
0%
Today
Mostly Cloudy
65°18°
0%
Tuesday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Wednesday
Mostly Cloudy
72°/ 55° 22°/ 13°
20%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
40%
Friday
Mostly Cloudy
72°/ 52° 22°/ 11°
30%
Saturday
Rain Showers
70°/ 52° 21°/ 11°
40%
Sunday
Rain Showers
68°20°
40%

Day: Mostly cloudy. Temperatures around 50. Northwest winds around 5 mph, becoming northeast late.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. East winds 5 to 10 mph.

Belvidere, IL

This Morning
Mostly Cloudy
45°7°
0%
Today
Mostly Cloudy
65°18°
0%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Mostly Cloudy
72°/ 55° 22°/ 13°
30%
Thursday
Thunderstorms
72°/ 52° 22°/ 11°
40%
Friday
Rain Showers
72°/ 52° 22°/ 11°
40%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
40%
Sunday
Rain Showers
68°20°
40%

Day: Mostly cloudy. Temperatures in the lower 50s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the mid 40s. East winds around 10 mph.

Sterling, IL

Today
Mostly Cloudy
68°/ 45° 20°/ 7°
0%
Tuesday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Partly Cloudy
75°/ 55° 24°/ 13°
50%
Thursday
Rain Showers
75°/ 52° 24°/ 11°
50%
Friday
Rain Showers
72°/ 55° 22°/ 13°
40%
Saturday
Rain Showers
72°22°
40%
Sunday
Rain Showers
72°22°
40%

Day: Mostly cloudy. Highs in the upper 60s. Northeast winds 5 to 10 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 40s. East winds 5 to 10 mph.

Mount Carroll, IL

Today
Mostly Cloudy
68°/ 45° 20°/ 7°
0%
Tuesday
Partly Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Partly Cloudy
72°/ 55° 22°/ 13°
50%
Thursday
Rain Showers
72°/ 52° 22°/ 11°
50%
Friday
Rain Showers
72°/ 52° 22°/ 11°
40%
Saturday
Rain Showers
70°21°
40%
Sunday
Rain Showers
70°21°
40%

Day: Mostly cloudy. Highs in the upper 60s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the mid 40s. East winds 10 to 15 mph.

Princeton, IL

Today
Mostly Cloudy
72°/ 48° 22°/ 9°
0%
Tuesday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Wednesday
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Thursday
Rain Showers
75°/ 55° 24°/ 13°
40%
Friday
Rain Showers
75°/ 55° 24°/ 13°
30%
Saturday
Rain Showers
72°22°
40%
Sunday
Rain Showers
72°22°
40%

Day: Mostly cloudy. Highs in the lower 70s. Light and variable winds, becoming east 5 to 10 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. East winds 5 to 10 mph.

Ottawa, IL

This Morning
Mostly Cloudy
48°9°
0%
Today
Mostly Cloudy
70°21°
0%
Tuesday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Mostly Cloudy
75°/ 55° 24°/ 13°
20%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
30%
Friday
Rain Showers
75°/ 55° 24°/ 13°
30%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
40%
Sunday
Rain Showers
72°22°
40%

Day: Mostly cloudy. Temperatures around 50. Light and variable winds, becoming east around 5 mph late.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. East winds 5 to 10 mph.

Aurora, IL

This Morning
Mostly Cloudy
48°9°
0%
Today
Mostly Cloudy
65°18°
0%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Mostly Cloudy
72°/ 55° 22°/ 13°
20%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
40%
Friday
Mostly Cloudy
72°/ 52° 22°/ 11°
30%
Saturday
Rain Showers
70°/ 52° 21°/ 11°
40%
Sunday
Rain Showers
68°20°
40%

Day: Mostly cloudy. Temperatures in the upper 40s. Northwest winds around 5 mph, becoming northeast late.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. Northeast winds 5 to 10 mph.

Janesville, WI

Tonight
Mostly Cloudy
52°11°
0%
Monday
Mostly Cloudy
62°/ 45° 17°/ 7°
0%
Tuesday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Partly Cloudy
72°/ 55° 22°/ 13°
50%
Thursday
Thunderstorms
72°/ 50° 22°/ 10°
40%
Friday
Rain Showers
68°/ 52° 20°/ 11°
40%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
50%
Sunday
Rain Showers
68°20°
40%

Night: Mostly cloudy. Near steady temperature in the lower 50s. Northeast winds 5 to 10 mph.

Crystal Lake, IL

This Morning
Mostly Cloudy
48°9°
0%
Today
Mostly Cloudy
62°17°
0%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Mostly Cloudy
72°/ 55° 22°/ 13°
20%
Thursday
Thunderstorms
72°/ 52° 22°/ 11°
40%
Friday
Rain Showers
72°/ 52° 22°/ 11°
40%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
40%
Sunday
Rain Showers
68°20°
40%

Day: Mostly cloudy. Temperatures in the lower 50s. North winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the upper 40s. East winds around 10 mph.

Oswego, IL

This Morning
Mostly Cloudy
48°9°
0%
Today
Mostly Cloudy
68°20°
0%
Tuesday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Mostly Cloudy
75°/ 55° 24°/ 13°
20%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
30%
Friday
Mostly Cloudy
75°/ 55° 24°/ 13°
0%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
40%
Sunday
Rain Showers
70°21°
40%

Day: Mostly cloudy. Temperatures in the upper 40s. Light and variable winds, becoming east around 5 mph late.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. Northeast winds 5 to 10 mph.

Monroe, WI

Tonight
Mostly Cloudy
52°11°
0%
Monday
Mostly Cloudy
62°/ 45° 17°/ 7°
0%
Tuesday
Partly Cloudy
70°/ 55° 21°/ 13°
0%
Wednesday
Partly Cloudy
72°/ 55° 22°/ 13°
50%
Thursday
Thunderstorms
72°/ 50° 22°/ 10°
40%
Friday
Rain Showers
68°/ 52° 20°/ 11°
50%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
50%
Sunday
Rain Showers
68°20°
30%

Night: Mostly cloudy. Near steady temperature in the lower 50s. Northeast winds 5 to 10 mph.

Galena, IL

Today
Mostly Cloudy
65°/ 45° 18°/ 7°
0%
Tuesday
Partly Cloudy
70°/ 52° 21°/ 11°
0%
Wednesday
Sunny
72°/ 55° 22°/ 13°
50%
Thursday
Rain Showers
72°/ 52° 22°/ 11°
50%
Friday
Rain Showers
70°/ 52° 21°/ 11°
40%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
50%

Day: Mostly cloudy. Cooler with highs in the mid 60s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the mid 40s. East winds 10 to 15 mph.

Geneseo, IL

Today
Mostly Cloudy
72°/ 48° 22°/ 9°
0%
Tuesday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Wednesday
Partly Cloudy
75°/ 58° 24°/ 14°
0%
Thursday
Rain Showers
75°/ 55° 24°/ 13°
40%
Friday
Rain Showers
75°/ 55° 24°/ 13°
30%
Saturday
Rain Showers
72°22°
40%
Sunday
Rain Showers
72°22°
40%

Day: Mostly cloudy. Highs in the lower 70s. Light and variable winds, becoming east 5 to 10 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. East winds 5 to 10 mph.

Maquoketa, IA

Today
Mostly Cloudy
65°/ 45° 18°/ 7°
0%
Tuesday
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Wednesday
Partly Cloudy
75°/ 55° 24°/ 13°
50%
Thursday
Rain Showers
75°/ 52° 24°/ 11°
50%
Friday
Rain Showers
72°/ 52° 22°/ 11°
40%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
50%

Day: Mostly cloudy. Highs in the mid 60s. Northeast winds 5 to 10 mph, becoming east this afternoon.

Night: Mostly cloudy. Lows in the mid 40s. East winds 5 to 10 mph.

Whitewater, WI

Tonight
Mostly Cloudy
50°10°
0%
Monday
Mostly Cloudy
62°/ 45° 17°/ 7°
0%
Tuesday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Mostly Cloudy
72°/ 55° 22°/ 13°
40%
Thursday
Thunderstorms
72°/ 50° 22°/ 10°
40%
Friday
Rain Showers
68°/ 52° 20°/ 11°
40%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
40%
Sunday
Rain Showers
68°20°
40%

Night: Mostly cloudy. Near steady temperature around 50. Northeast winds up to 5 mph.

Clinton, IA

Today
Mostly Cloudy
68°/ 48° 20°/ 9°
0%
Tuesday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Wednesday
Partly Cloudy
75°/ 58° 24°/ 14°
50%
Thursday
Rain Showers
75°/ 52° 24°/ 11°
50%
Friday
Rain Showers
72°/ 55° 22°/ 13°
40%
Saturday
Rain Showers
72°/ 52° 22°/ 11°
50%

Day: Mostly cloudy. Highs in the upper 60s. Northeast winds 5 to 10 mph, becoming east this afternoon.

Night: Mostly cloudy. Lows in the upper 40s. East winds 5 to 10 mph.

Names listed above may include county names.

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