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Elev 840 ft, 41.11 °N, 90.16 °W

Altona, IL Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Altona, IL
Elevation: 840ft
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Active Weather Alerts

Flood Watch
Issued: 8:51 AM Jun. 21, 2026 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT FROM 7 AM CDT THIS MORNING THROUGH
LATE TONIGHT...

* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of central, east central, southeast, and west
central Illinois, including the following counties, in central
Illinois, Christian, De Witt, Logan, Macon, Marshall, Mason,
McLean, Menard, Peoria, Piatt, Sangamon, Shelby, Stark, Tazewell
and Woodford. In east central Illinois, Champaign, Clark, Coles,
Cumberland, Douglas, Edgar, Moultrie and Vermilion. In southeast
Illinois, Clay, Crawford, Effingham, Jasper, Lawrence and
Richland. In west central Illinois, Cass, Fulton, Knox, Morgan,
Schuyler and Scott.

* WHEN...From 7 AM CDT this morning through late tonight.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

River Flood Warning
Issued: 12:21 AM Jun. 21, 2026 – National Weather Service
...FLOOD WARNING IN EFFECT FROM MONDAY EVENING TO WEDNESDAY
EVENING...

* WHAT...Minor flooding is forecast.

* WHERE...Spoon River at London Mills.

* WHEN...From Monday evening to Wednesday evening.

* IMPACTS...At 15.0 feet, Minor flooding begins to agricultural land
near the river.

* ADDITIONAL DETAILS...
- At 6:45 PM CDT Saturday the stage was 8.7 feet.
- Forecast...The river is expected to rise above flood stage
Monday evening to a crest of 16.1 feet early Tuesday
afternoon. It will then fall below flood stage early
Wednesday afternoon.
- Flood stage is 15.0 feet.
- http://www.weather.gov/safety/flood

&&

Fld   Observed           Forecasts (7 pm CDT)
Location    Stg   Stg   Day/Time     Sun   Mon   Tue

Spoon River
London Mill 15.0  8.7   Sat 6 pm CDT 9.4   14.9  16.1


&&



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