MEDIAN FLOW RATE · 7 DAY
11cfs 5.2% vs avg
Optimal band: 18–24 cfs
PERIOD HIGH
70cfs
PERIOD LOW
11cfs
RUNNABLE
13%
last 7 day in band
Precipitation History
Precipitation · YTD
WetWetter than normal
2026 to date
24.6in
+21% vs normal
24.59 in of precipitation so far this year, 21% above the 30-year normal of 20.33 in for this point in the season.
YTD Total
24.6in
This year so far
Normal to Date
20.3in
30-yr average
Typical Range
14.3–25.7in
10th–90th pct YTD
Departure
+21%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 1.45" · normal 2.19" (1.1–3.5)
Feb: 0.92" · normal 2.02" (0.7–3.4)
Mar: 5.01" · normal 2.69" (1.6–4.4)
Apr: 6.28" · normal 4.24" (2.6–6.5)
May: 2.09" · normal 4.60" (2.0–6.7)
Jun: 8.25" · normal 4.32" (1.9–6.7)
Jul: 0.60" (so far)· normal 3.87" (1.9–5.3)
Aug: normal 3.83" (1.7–5.4)
Sep: normal 3.05" (1.2–5.2)
Oct: normal 3.30" (1.5–6.6)
Nov: normal 2.56" (1.3–4.3)
Dec: normal 2.14" (1.0–3.6)
Baseline 1991–2020 · Source: Open-Meteo12:42 AM
Your History · LONG RUN NEAR LEMONT, IL
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Weather Conditions
WEATHER CONDITIONS
TODAY
96°
77°
FRI
94°
74°
SAT
86°
72°
SUN
85°
71°
MON
75°
64°
TUE
84°
61°
WED
84°
66°
FISH INDEX
Temperature
Too Hot
Wind
Light
Pressure
Rising — Slow
Moon Phase
Average
DAYLIGHT
SUNRISE
05:22 AM
SUNSET
08:30 PM
15H 8M OF DAYLIGHT17H 11M REMAINING
MOON PHASE
Waning Gibbous
89% illuminated
Station Location
41.6426, -87.9994Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-03 03:19 UTC
Site #05537500·USGS
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