Forreston, IL Weather Forecast & Current Conditions

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Forreston, IL Weather Maps

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Forreston Weather Map
UTC Time: 9/22/2026, 12:44
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Forreston, IL Regional Weather

Expires:202609221300;;869533
ASUS43 KLOT 221208
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 AM CDT TUE SEP 22 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.


ILZ003-004-008-010-011-017-018-221300-
NORTH CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       TSTM      54  52  93 NE5       30.28R FOG     TC  12   
6HR MIN TEMP:  54; 6HR MAX TEMP:  57; 6HR PCP:  0.16;                

FREEPORT*      CLOUDY    54  52  95 NE6       30.29R TC  12           
ROCHELLE*      CLOUDY    55  53  92 E8        30.27R TC  13           
DE KALB*       CLOUDY    55  53  92 NE6       30.27R TC  13           
PERU*          CLOUDY    57  52  82 E13       30.24R TC  14           
$$


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

Forreston, IL

This Morning
Rain Showers
48°
50%
Today
Rain Showers
62°17°
50%
Wednesday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Thursday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Sunday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Monday
Cloudy
75°24°
0%

Day: Cloudy. A chance of showers. Temperatures in the mid 50s. Northeast winds around 10 mph. Chance of precipitation 50 percent.

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

Freeport, IL

Today
Rain Showers
62°/ 48° 17°/
80%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Mostly Cloudy
48°
0%
Saturday
Mostly Cloudy
48°
0%
Sunday
Mostly Cloudy
48°
0%
Sun Night-Mon
Cloudy
52°11°
0%

Day: Mostly cloudy. Patchy fog this morning. Showers, mainly this morning. Highs in the lower 60s. Northeast winds 10 to 15 mph. Chance of rain 80 percent.

Night: Partly cloudy. Lows in the upper 40s. Northeast winds 5 to 10 mph.

Mount Carroll, IL

Today
Rain Showers
62°/ 48° 17°/
80%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Friday
Mostly Cloudy
50°10°
0%
Saturday
Mostly Cloudy
50°10°
0%
Sunday
Mostly Cloudy
50°10°
0%
Sun Night-Mon
Cloudy
55°13°
0%

Day: Mostly cloudy. Patchy fog this morning. Showers, mainly this morning. Highs in the lower 60s. Northeast winds around 10 mph with gusts up to 20 mph. Chance of rain 80 percent.

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

Rockford, IL

This Morning
Rain Showers
48°
50%
Today
Rain Showers
62°17°
50%
Wednesday
Mostly Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
65°/ 48° 18°/
0%
Friday
Mostly Cloudy
68°/ 45° 20°/
0%
Saturday
Mostly Cloudy
65°/ 48° 18°/
0%
Sunday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Monday
Cloudy
72°22°
0%

Day: Cloudy. A slight chance of showers late, then a chance of showers late. Temperatures in the mid 50s. Northeast winds around 10 mph. Chance of precipitation 50 percent.

Night: Partly cloudy. Lows in the upper 40s. Northeast winds 5 to 10 mph.

Sterling, IL

Today
Rain Showers
62°/ 48° 17°/
80%
Wednesday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
52°11°
0%
Saturday
Mostly Cloudy
52°11°
0%
Sunday
Mostly Cloudy
52°11°
0%
Sun Night-Mon
Cloudy
55°13°
0%

Day: Mostly cloudy. Patchy fog this morning. Showers, mainly this morning. Highs in the lower 60s. Northeast winds 10 to 15 mph. Chance of rain 80 percent.

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

Dixon, IL

This Morning
Rain Showers
50°10°
50%
Today
Rain Showers
62°17°
20%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Sunday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Monday
Cloudy
75°24°
0%

Day: Cloudy. A slight chance of showers late, then a chance of showers late. Temperatures in the mid 50s. Northeast winds around 10 mph. Chance of precipitation 50 percent.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows around 50. Northeast winds 5 to 10 mph.

Galena, IL

Today
Rain Showers
62°/ 48° 17°/
80%
Wednesday
Partly Cloudy
65°/ 50° 18°/ 10°
0%
Thursday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Mostly Cloudy
50°10°
0%
Saturday
Mostly Cloudy
50°/ 52° 10°/ 11°
30%
Sunday
Mostly Cloudy
68°20°
0%
Sun Night-Mon
Cloudy
55°13°
0%

Day: Mostly cloudy. Patchy fog this morning. Showers, mainly this morning. Highs in the lower 60s. Northeast winds around 10 mph with gusts up to 20 mph. Chance of rain 80 percent.

Night: Partly cloudy. Lows in the upper 40s. Northeast winds 5 to 10 mph.

Maquoketa, IA

Today
Rain Showers
62°/ 48° 17°/
70%
Wednesday
Sunny
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Mostly Cloudy
52°11°
0%
Saturday
Mostly Cloudy
52°/ 52° 11°/ 11°
30%
Sunday
Mostly Cloudy
70°21°
0%
Sun Night-Mon
Cloudy
58°14°
0%

Day: Mostly cloudy. Patchy fog this morning. Showers likely, mainly this morning. Highs in the lower 60s. Northeast winds around 10 mph with gusts up to 20 mph. Chance of rain 70 percent.

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

Monroe, WI

This Morning
Rain Showers
48°
40%
Today
Rain Showers
60°16°
30%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Partly Cloudy
65°/ 48° 18°/
0%
Saturday
Rain Showers
65°/ 50° 18°/ 10°
30%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
20%
Monday
Partly Cloudy
72°22°
0%

Day: Cloudy with scattered light rain showers. Northeast winds 5 to 10 mph. Chance of showers 40 percent.

Night: Partly cloudy. Lows in the upper 40s. Northeast winds 5 to 10 mph.

Clinton, IA

Today
Rain Showers
62°/ 48° 17°/
80%
Wednesday
Sunny
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
52°11°
0%
Saturday
Mostly Cloudy
52°/ 55° 11°/ 13°
30%
Sunday
Mostly Cloudy
72°22°
0%
Sun Night-Mon
Cloudy
58°14°
0%

Day: Mostly cloudy. Patchy fog this morning. Showers, mainly this morning. Highs in the lower 60s. Northeast winds around 10 mph with gusts up to 20 mph. Chance of rain 80 percent.

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

DeKalb, IL

This Morning
Rain Showers
52°11°
20%
Today
Rain Showers
62°17°
20%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Sunday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Monday
Cloudy
75°24°
0%

Day: Mostly cloudy. A slight chance of showers. Temperatures in the mid 50s. Northeast winds around 10 mph. Chance of precipitation 20 percent.

Night: Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of showers early in the evening. Lows in the lower 50s. Northeast winds 5 to 10 mph. Chance of precipitation 20 percent.

Darlington, WI

This Morning
Rain Showers
45°
50%
Today
Rain Showers
60°16°
20%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Partly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Partly Cloudy
65°/ 48° 18°/
0%
Saturday
Rain Showers
65°/ 52° 18°/ 11°
30%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
20%
Monday
Partly Cloudy
72°22°
0%

Day: Cloudy with scattered light rain showers. Northeast winds 5 to 10 mph. Chance of showers 50 percent.

Night: Partly cloudy. Lows in the mid 40s. Northeast winds around 5 mph.

Belvidere, IL

This Morning
Rain Showers
50°10°
20%
Today
Rain Showers
62°17°
20%
Wednesday
Mostly Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
65°/ 48° 18°/
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
65°/ 48° 18°/
0%
Sunday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Monday
Mostly Cloudy
72°22°
0%

Day: Cloudy. A slight chance of showers. Temperatures in the mid 50s. Northeast winds around 10 mph. Chance of precipitation 20 percent.

Night: Partly cloudy. Lows around 50. Northeast winds 5 to 10 mph.

Janesville, WI

This Morning
Rain Showers
48°
20%
Today
Rain Showers
62°17°
20%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Partly Cloudy
65°/ 45° 18°/
0%
Saturday
Partly Cloudy
65°/ 48° 18°/
20%
Sunday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Monday
Partly Cloudy
72°22°
0%

Day: Cloudy with isolated light rain showers. Northeast winds 5 to 10 mph. Chance of showers 20 percent.

Night: Partly cloudy. Lows in the upper 40s. Northeast winds 5 to 10 mph.

Princeton, IL

Today
Rain Showers
62°/ 52° 17°/ 11°
50%
Wednesday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
52°11°
0%
Saturday
Mostly Cloudy
52°11°
0%
Sunday
Mostly Cloudy
52°11°
0%
Sun Night-Mon
Cloudy
55°13°
0%

Day: Mostly cloudy. Patchy fog this morning. A chance of showers, mainly this morning. Highs in the lower 60s. Northeast winds 10 to 15 mph. Chance of rain 50 percent.

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

Geneseo, IL

Today
Rain Showers
62°/ 50° 17°/ 10°
70%
Wednesday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
52°11°
0%
Saturday
Mostly Cloudy
52°11°
0%
Sunday
Mostly Cloudy
52°11°
0%
Sun Night-Mon
Cloudy
58°14°
0%

Day: Cloudy. Patchy fog this morning. Showers likely, mainly this morning. Highs in the lower 60s. Northeast winds around 10 mph with gusts up to 20 mph. Chance of rain 70 percent.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 50. Northeast winds 5 to 10 mph.

Ottawa, IL

This Morning
Rain Showers
55°13°
20%
Today
Rain Showers
65°18°
20%
Wednesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Cloudy
70°/ 48° 21°/
0%
Saturday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Sunday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Monday
Cloudy
78°26°
0%

Day: Mostly cloudy. A slight chance of showers. Temperatures in the upper 50s. Northeast winds around 10 mph. Chance of precipitation 20 percent.

Night: Mostly cloudy. A slight chance of showers in the evening. Lows in the mid 50s. Northeast winds 5 to 10 mph. Chance of precipitation 20 percent.

Moline, IL

Today
Rain Showers
62°/ 50° 17°/ 10°
80%
Wednesday
Sunny
68°/ 55° 20°/ 13°
0%
Thursday
Partly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Mostly Cloudy
55°13°
0%
Saturday
Mostly Cloudy
55°13°
0%
Sunday
Mostly Cloudy
55°13°
0%
Sun Night-Mon
Cloudy
58°14°
0%

Day: Cloudy. Patchy fog this morning. Showers, mainly this morning. Highs in the lower 60s. Northeast winds around 10 mph with gusts up to 20 mph. Chance of rain 80 percent.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 50. Northeast winds 5 to 10 mph.

Whitewater, WI

This Morning
Rain Showers
50°10°
20%
Today
Rain Showers
62°17°
20%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Partly Cloudy
65°/ 48° 18°/
0%
Saturday
Partly Cloudy
65°/ 48° 18°/
20%
Sunday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Monday
Partly Cloudy
72°22°
0%

Day: Cloudy with isolated light rain showers. Northeast winds 5 to 10 mph. Chance of showers 20 percent.

Night: Partly cloudy. Lows around 50. Northeast winds around 5 mph.

Crystal Lake, IL

This Morning
Rain Showers
52°11°
20%
Today
Rain Showers
62°17°
20%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Sunday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Monday
Cloudy
72°22°
0%

Day: Cloudy. A slight chance of showers. Temperatures in the mid 50s. Northeast winds around 10 mph. Chance of precipitation 20 percent.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 50s. Northeast winds 5 to 10 mph.

Names listed above may include county names.

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