Radar
« Active Alerts
FLOOD WARNING
FLOOD WARNING ISSUED APRIL 18 AT 10:23PM CDT
Effective: 2026-04-18 22:23:00 Local Time Expires: 2026-04-19 10:30:00 Local Time Issued by: NWS Milwaukee/Sullivan WI
Alert Text
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS INILLINOIS...WISCONSIN...

SUGAR RIVER AT BRODHEAD AFFECTING ROCK, WINNEBAGO AND GREEN COUNTIES.

ROCK RIVER NEAR LAKE KOSHKONONG AFFECTING JEFFERSON AND ROCK COUNTIES.

ROCK RIVER AT FORT ATKINSON AFFECTING JEFFERSON COUNTY.

ROCK RIVER AT AFTON AFFECTING ROCK AND WINNEBAGO COUNTIES.

ROCK RIVER AT JEFFERSON AFFECTING JEFFERSON COUNTY.

ROCK RIVER AT WATERTOWN AFFECTING JEFFERSON COUNTY.

ROCK RIVER NEAR LEBANON-3 E-HWY MM BRIDGE AFFECTING DODGE COUNTY.

CRAWFISH RIVER AT MILFORD AFFECTING JEFFERSON COUNTY.

* WHAT...MINOR FLOODING IS OCCURRING AND MAJOR FLOODING IS FORECAST.

* WHERE...ROCK RIVER AT AFTON.

* WHEN...UNTIL FURTHER NOTICE.

* IMPACTS...AT 12.2 FEET, THERE IS WIDESPREAD FLOODING IN THE AFTON AND JANESVILLE AREAS. NUMEROUS ROADS AND STREETS ADJACENT TO THE RIVER ARE CLOSED INCLUDING SOUTH RIVER ROAD ON THE SOUTH SIDE OF JANESVILLE, SEVERAL BLOCKS OF JOSEPH AND CHARLES STREETS, A PORTION OF MAIN STREET, AND NORTH LOOP ROAD AT TRAXLER PARK. THE ON-RAMP TO MEMORIAL DRIVE IS CLOSED AS IS A PORTION OF RIVERSIDE DRIVE. TRAXLER PARK OFF OF MEMORIAL DRIVE IN JANESVILLE IS FLOODED AND CLOSED.

* ADDITIONAL DETAILS... - AT 8:00 PM CDT SATURDAY THE STAGE WAS 11.0 FEET. - BANKFULL STAGE IS 8.0 FEET. - RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS ENDING AT 8:00 PM CDT SATURDAY WAS 12.1 FEET. - FORECAST...THE RIVER IS EXPECTED TO RISE TO 12.2 FEET SATURDAY, APRIL 25. ADDITIONAL RISES ARE POSSIBLE THEREAFTER. - FLOOD STAGE IS 9.0 FEET. - FLOOD HISTORY...THIS CREST COMPARES TO A PREVIOUS CREST OF 12.2 FEET ON 01 23 2008. - HTTP: WWW.WEATHER.GOV SAFETY FLOOD
More Information
View Storm Reports Map — Know the difference between Watch, Warning, Advisory
Target Area
WINNEBAGO, IL, ROCK, WI
🔔 Sign-up to receive real-time severe weather alerts via email or text — subscribe

Storm Reports

Loading...

Local Time ▼ Location ⇅ Event ⇅ Detail Source ⇅
Loading reports...
Sign-up to receive real-time storm reports via email or text — subscribe

Storm report data provided by WxData.com

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
Severe Weather Alerts
Severe Weather
 		Daily Weather Forecast
Daily Forecast
 		Storm Report Monitoring
Storm Reports

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
60.1 F

WASH DC/DULLES (KIAD)

Cloudy
66.2 F

WASHINGTON/NATL (KDCA)

Mostly Cloudy
66.2 F
Sign-up to receive daily weather forecasts by email or text — subscribe