Precipitation gage data retrieved from NWISWeb: ...
Update 05/05/2021 - Start/end times of NWS Overlay totals may differ from precipitation gage totals.
NWS radar overlays for 1-12 hours are generated once an hour at the end of the hour,
NWS radar overlays for 24-168 hours represent a total ending at 12UTC on or before the indicated gage-data date.

Cumulative Rainfall
Time Frame
Radar Overlay Opacity
Opacity Value:

Legend (inches)

map icon, dark grey
no data
map icon, light grey
map icon, very light blue
map icon, light blue
map icon, blue\
map icon, dark blue
map icon, very light green
map icon, light green
map icon, green\
map icon, dark green
map icon, light yellow
map icon, yellow
map icon, light orange
map icon, orange\
map icon, light red
map icon, red\
map icon, white

Hover over table rows to find station on the map
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Station 1

Legend colors refer to both USGS gage and National Weather Service precipitation overlay (at full opacity).
* For precipitation values less than 0.01 inches, the USGS gage symbol is light grey and the National Weather Service overlay is transparent.

Data: Hourly and Daily values are calculated from the last time a gage value was updated, which is not necessarily the time this web page was updated.

  • half shaded icon Half colored icons designate gage data that appears to be logging correctly but is over 1 hour and 15 minutes older than the NWISWeb time stamp at the top of the Rainfall page. The colored portion of the icon will represent the precipitation amount for that time interval.
  • full grey icon The "no data" icon is the result of an NWISWeb status code:
    • “ – – ” Parameter not determined, usually due to missing data.
    • “ Eqp ” Equipment malfunction.
    • “ Dis ” Data-collection discontinued.

USGS rain-gage data shown in the table are available at Water Data for the Nation : Current Illinois Precipitation

NWS Precipitation Image overlays are provided by the National Weather Service. The images are available at