closegps_fixed
Elev 600 ft, 40.36 °N, 90.09 °W

Lewistown, IL Severe Weather Alertstar_ratehome

icon38 Â°F Therkildsen Field Station Station|Report|Change
Current Station
Personal Weather Station
Location: Lewistown, IL
Elevation: 600ft
Nearby Weather Stations

Active Weather Alerts

River Flood Warning
Issued: 1:45 AM Apr. 19, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Illinois River near Havana.

* WHEN...Until further notice.

* ADDITIONAL DETAILS...
- At 7:45 PM CDT Saturday the stage was 15.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:45 PM CDT Saturday was 15.4 feet.
- Forecast...The river is expected to rise to a crest of 16.8
feet early Thursday morning.
- Flood stage is 14.0 feet.
- http://www.weather.gov/safety/flood

&&

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

Illinois River
Havana        14.0  15.4  Sat 7 pm CDT 15.9  16.2  16.4


&&



Freeze Watch
Issued: 6:48 PM Apr. 18, 2026 – National Weather Service
...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY...
...FREEZE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY
MORNING...

* WHAT...For the Frost Advisory, temperatures as low as 34 will
result in frost formation. For the Freeze Watch, sub-freezing
temperatures as low as 30 possible.

* WHERE...Portions of central, east central, and west central
Illinois.

* WHEN...For the Frost Advisory, from 1 AM to 8 AM CDT Sunday. For
the Freeze Watch, from late Sunday night through Monday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing. Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

Frost Advisory
Issued: 6:48 PM Apr. 18, 2026 – National Weather Service
...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY...
...FREEZE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY
MORNING...

* WHAT...For the Frost Advisory, temperatures as low as 34 will
result in frost formation. For the Freeze Watch, sub-freezing
temperatures as low as 30 possible.

* WHERE...Portions of central, east central, and west central
Illinois.

* WHEN...For the Frost Advisory, from 1 AM to 8 AM CDT Sunday. For
the Freeze Watch, from late Sunday night through Monday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing. Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

Local Radar
Local Radar ImageLocal Severe Image