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FLOOD WARNING
FLOOD WARNING ISSUED APRIL 17 AT 10:27PM CDT
Effective: 2026-04-17 22:27:00 Local Time Expires: 2026-04-18 14:30:00 Local Time Issued by: NWS Lincoln IL
Alert Text
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS INILLINOIS...

ILLINOIS RIVER NEAR HAVANA AFFECTING MASON, CASS AND FULTON COUNTIES.

ILLINOIS RIVER AT BEARDSTOWN AFFECTING BROWN, CASS, SCHUYLER AND MORGAN COUNTIES.

.THE FOLLOWING FORECASTS ARE BASED ON OBSERVED PRECIPITATION, SOIL MOISTURE CONDITIONS, AND FORECAST PRECIPITATION.

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

* WHERE...ILLINOIS RIVER NEAR HAVANA.

* WHEN...UNTIL FURTHER NOTICE.

* ADDITIONAL DETAILS... - AT 9:45 PM CDT FRIDAY THE STAGE WAS 15.1 FEET. - RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS ENDING AT 9:45 PM CDT FRIDAY WAS 15.1 FEET. - FORECAST...THE RIVER IS EXPECTED TO RISE TO 17.3 FEET EARLY THURSDAY AFTERNOON. ADDITIONAL RISES ARE POSSIBLE THEREAFTER. - FLOOD STAGE IS 14.0 FEET. - HTTP: WWW.WEATHER.GOV SAFETY FLOOD
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Target Area
CASS, IL, FULTON, IL, MASON, IL
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Hazardous Weather Conditions

No active alerts for CHEVY CHASE, MARYLAND

Current Conditions: CHEVY CHASE, MARYLAND

LEESBURG/GODFREY (KJYO)

Clear

57.2 F
Humidity:88%
Wind Speed: 0.0 mph
Barometer:30.01 in
Dewpoint:53.6 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 18 2026, 02:35 AM EDT
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5 Day Forecast for CHEVY CHASE, MARYLAND (20815)

Saturday

High 84 °F
Partly Sunny
Saturday
Night
Low 53 °F
Rain
Sunday

High 60 °F
Rain Showers Likely
Sunday
Night
Low 41 °F
Showers Likely
Monday

High 55 °F
Partly Sunny
Monday
Night
Low 37 °F
Mostly Clear
Tuesday

High 64 °F
Mostly Sunny
Tuesday
Night
Low 51 °F
Partly Cloudy
Wednesday

High 77 °F
Isolated T-storm

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)
02:35 AM EDT 0.0 10.00 Clear -- 57.2 53.6 88% NA NA 30.01 1016.3
02:15 AM EDT 0.0 10.00 Clear -- 59.0 53.6 82% NA NA 30.01 1016.3
01:55 AM EDT 0.0 10.00 Clear -- 59.0 53.6 82% NA NA 30.02 1016.6
01:35 AM EDT 0.0 10.00 Clear -- 59.0 55.4 88% NA NA 30.02 1016.6
01:15 AM EDT 0.0 10.00 Clear -- 57.2 53.6 88% NA NA 30.01 1016.3
12:55 AM EDT 0.0 10.00 Clear -- 59.0 55.4 88% NA NA 30.00 1015.9
12:35 AM EDT 0.0 10.00 Clear -- 59.0 55.4 88% NA NA 30.00 1015.9
12:15 AM EDT 0.0 10.00 NULL -- 60.8 55.4 82% NA NA 30.00 1015.9
11:55 PM EDT 0.0 10.00 Clear -- 60.8 55.4 82% NA NA 29.99 1015.6
11:35 PM EDT 0.0 10.00 Clear -- 62.6 55.4 77% NA NA 29.98 1015.2
11:15 PM EDT 0.0 10.00 Clear -- 64.4 55.4 73% NA NA 29.99 1015.6
10:55 PM EDT 3.4 10.00 Clear -- 64.4 55.4 73% NA NA 29.99 1015.6
10:35 PM EDT 0.0 10.00 Clear -- 62.6 55.4 77% NA NA 29.98 1015.2
10:15 PM EDT 0.0 10.00 Clear -- 62.6 55.4 77% NA NA 29.98 1015.2
09:55 PM EDT 0.0 10.00 Clear -- 66.2 55.4 68% NA NA 29.97 1014.9
09:35 PM EDT 0.0 10.00 Clear -- 64.4 55.4 73% NA NA 29.97 1014.9
09:15 PM EDT 0.0 10.00 NULL -- 68.0 55.4 64% NA NA 29.97 1014.9
08:55 PM EDT 0.0 10.00 Clear -- 71.6 53.6 53% NA 70.9 29.97 1014.9
08:35 PM EDT NE 3.4 10.00 Clear -- 71.6 55.4 57% NA 71.1 29.96 1014.6
08:15 PM EDT NE 3.4 10.00 Clear -- 73.4 53.6 50% NA 72.9 29.95 1014.2
07:55 PM EDT NE 3.4 10.00 Clear -- 73.4 53.6 50% NA 72.9 29.96 1014.6
07:35 PM EDT 3.4 10.00 Clear -- 75.2 53.6 47% NA 74.7 29.96 1014.6
07:15 PM EDT 6.9 10.00 Clear -- 77.0 53.6 44% NA 76.5 29.95 1014.2
06:35 PM EDT 6.9 10.00 Clear -- 77.0 55.4 47% NA 76.6 29.95 1014.2

Regional Weather Observation

LEESBURG/GODFREY (KJYO)

Clear
57.2 F

FREDERICK (KFDK)

Clear
55.2 F

CARROLL CNTY (KDMW)

Clear
62.6 F

NSF THURMONT (KRSP)

Clear
63.0 F

WASH DC/DULLES (KIAD)

NULL
55.4 F

WASHINGTON/NATL (KDCA)

Clear
62.6 F
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