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FLOOD WARNING
FLOOD WARNING ISSUED APRIL 18 AT 7:57PM CDT UNTIL APRIL 21 AT 1:00PM CDT
Effective: 2026-04-18 19:57:00 Local Time Expires: 2026-04-21 13:00:00 Local Time Issued by: NWS Chicago IL
Alert Text
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS INILLINOIS...

KISHWAUKEE RIVER NEAR PERRYVILLE AFFECTING WINNEBAGO COUNTY.

* WHAT...MINOR FLOODING IS OCCURRING AND EXPECTED TO CONTINUE.

* WHERE...KISHWAUKEE RIVER FROM CONFLUENCE WITH SOUTH BRANCH KISHWAUKEE RIVER DOWNSTREAM TO THE ROCK RIVER, INCLUDING THE PERRYVILLE GAUGE.

* WHEN...UNTIL EARLY TUESDAY AFTERNOON.

* IMPACTS...AT 13.0 FEET, ROADWAYS THREATENED AT BLACKHAWK VALLEY CAMPGROUND SOUTH OF ROCKFORD.

* ADDITIONAL DETAILS... - AT 7:30 PM CDT SATURDAY THE STAGE WAS 13.6 FEET. - FORECAST...THE RIVER IS EXPECTED TO RISE TO A CREST NEAR 14.0 FEET TOMORROW MORNING, AND THEN FALL BELOW FLOOD STAGE AT SOME POINT TUESDAY. - FLOOD STAGE IS 12.0 FEET. - HTTP: WWW.WEATHER.GOV SAFETY FLOOD
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Target Area
WINNEBAGO, IL
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Hazardous Weather Conditions

Freeze Watch issued April 18 at 11:59PM EDT until April 21 at 10:00AM EDT

Current Conditions: CHEVY CHASE, MARYLAND

LEESBURG/GODFREY (KJYO)

Cloudy

68.0 F
Humidity:78%
Wind Speed: 0.0 mph
Barometer:29.85 in
Dewpoint:60.8 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 19 2026, 12:35 AM EDT
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5 Day Forecast for CHEVY CHASE, MARYLAND (20815)

Sunday

High 59 °F
Rain Showers Likely
Sunday
Night
Low 42 °F
Partly Cloudy
Monday

High 55 °F
Partly Sunny
Monday
Night
Low 33 °F
Mostly Clear
Tuesday

High 59 °F
Mostly Sunny
Tuesday
Night
Low 48 °F
Slight Chance of Rain
Wednesday

High 73 °F
Chance of Rain Showers
Wednesday
Night
Low 50 °F
Partly Cloudy
Thursday

High 77 °F
Mostly Sunny

Observation History for CHEVY CHASE, MARYLAND


Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
12:35 AM EDT 0.0 10.00 Cloudy -- 68.0 60.8 78% NA NA 29.85 1010.8
12:15 AM EDT 0.0 10.00 NULL -- 68.0 60.8 78% NA NA 29.86 1011.2
11:55 PM EDT E 4.7 10.00 Cloudy -- 68.0 60.8 78% NA NA 29.84 1010.5
11:35 PM EDT E 3.4 10.00 Light Rain -- 69.8 60.8 73% NA NA 29.85 1010.8
11:15 PM EDT E 4.7 10.00 NULL -- 69.8 60.8 73% NA NA 29.85 1010.8
10:55 PM EDT 4.7 10.00 Cloudy -- 69.8 60.8 73% NA NA M
10:35 PM EDT 5.8 10.00 Mostly Cloudy -- 69.8 60.8 73% NA NA 29.83 1010.2
10:15 PM EDT SE 5.8 10.00 Mostly Cloudy -- 69.8 60.8 73% NA NA 29.82 1009.8
09:55 PM EDT SE 10.3 10.00 Clear -- 69.8 60.8 73% NA NA 29.82 1009.8
09:35 PM EDT SE 9.2 10.00 Clear -- 71.6 60.8 69% NA 71.8 29.83 1010.2
09:15 PM EDT SE 11.4 10.00 Clear -- 71.6 60.8 69% NA 71.8 29.82 1009.8
08:55 PM EDT SE 11.4 G 23.0 10.00 Clear -- 71.6 60.8 69% NA 71.8 29.82 1009.8
08:35 PM EDT SE 13.9 G 20.8 10.00 Clear -- 73.4 60.8 65% NA 73.4 29.81 1009.5
08:15 PM EDT SE 9.2 G 18.3 10.00 Clear -- 73.4 60.8 65% NA 73.4 29.81 1009.2
07:55 PM EDT SE 15.0 G 20.8 10.00 Clear -- 75.2 60.8 61% NA 75.2 29.81 1009.2
07:35 PM EDT SE 11.4 G 18.3 10.00 Clear -- 77.0 60.8 57% NA 77.2 29.81 1009.2
07:15 PM EDT SE 12.8 G 19.7 10.00 Clear -- 77.0 62.6 61% NA 77.4 29.81 1009.5
06:55 PM EDT SE 12.8 G 18.3 10.00 Clear -- 78.8 62.6 58% NA 79.2 29.81 1009.5
06:35 PM EDT G 19.7 10.00 Clear -- 78.8 62.6 58% NA 79.2 29.82 1009.8
06:15 PM EDT SE 12.8 10.00 Clear -- 78.8 62.6 58% NA 79.2 29.83 1010.2
05:55 PM EDT 15.0 G 23.0 10.00 Clear -- 78.8 62.6 58% NA 79.2 29.83 1010.2
05:35 PM EDT 10.3 G 20.8 10.00 Partly Cloudy -- 80.6 62.6 54% NA 81.9 29.83 1010.2
05:15 PM EDT SE 13.9 10.00 NULL -- 80.6 62.6 54% NA 81.9 29.83 1010.2
04:55 PM EDT 9.2 G 16.1 10.00 Clear -- 80.6 62.6 54% NA 81.9 29.83 1010.2

Regional Weather Observation

LEESBURG/GODFREY (KJYO)

Cloudy
68.0 F

FREDERICK (KFDK)

NULL
63.1 F

CARROLL CNTY (KDMW)

Partly Cloudy
60.8 F

NSF THURMONT (KRSP)

Light Rain
59.0 F

WASH DC/DULLES (KIAD)

Cloudy
66.2 F

WASHINGTON/NATL (KDCA)

Mostly Cloudy
66.2 F
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