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Elev 449 ft, 38.97 °N, 90.43 °W

Grafton, IL Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Grafton, IL
Elevation: 449ft
Nearby Weather Stations

Active Weather Alerts

Heat Advisory
Issued: 6:27 PM Jun. 28, 2026 – National Weather Service
...HEAT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT THURSDAY
NIGHT...

* WHAT...Heat index values up to 105.

* WHERE...Portions of south central, southwest, and west central
Illinois and central, east central, northeast, and southeast
Missouri.

* WHEN...Until midnight CDT Thursday Night.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors. Young children and
pets should never be left unattended in vehicles under any
circumstances. Take extra precautions if you work or spend time
outside. When possible reschedule strenuous activities to early
morning or evening. Know the signs and symptoms of heat exhaustion
and heat stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational Safety
and Health Administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.

&&

River Flood Warning
Issued: 4:37 PM Jun. 28, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL FURTHER NOTICE...

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

* WHERE...Illinois River at Hardin.

* WHEN...Until further notice.

* ADDITIONAL DETAILS...
- At 11:00 AM CDT Sunday the stage was 26.5 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:00 AM CDT Sunday was 26.7 feet.
- Forecast...The river is expected to fall to 25.1 feet Sunday,
July 05.
- Flood stage is 25.0 feet.



&&


All Times CDT Fld   Observed  Forecasts (1 pm)
Location      Stg     Stage   Mon   Tue   Wed   Thu   Fri

Illinois River
Hardin       25.0    26.5    26.3  26.0  25.9  25.8  25.6



&&



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