MEDIAN FLOW RATE · 1 DAY
327,000cfs 5.4% vs avg
Optimal band: 288,150–389,850 cfs
PERIOD HIGH
351,000cfs
PERIOD LOW
324,000cfs
RUNNABLE
100%
last 1 day in band
Gauge Height
20.89ft
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
23.3in
≈ normal
23.33 in of precipitation so far this year — about average for this point in the season (normal 23.58 in).
YTD Total
23.3in
This year so far
Normal to Date
23.6in
30-yr average
Typical Range
17.6–28.9in
10th–90th pct YTD
Departure
-1%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 1.38" · normal 3.02" (1.3–4.5)
Feb: 1.31" · normal 2.81" (1.5–4.0)
Mar: 3.96" · normal 3.97" (2.5–5.3)
Apr: 8.49" · normal 4.82" (2.6–7.6)
May: 2.74" · normal 4.80" (2.7–6.5)
Jun: 5.42" · normal 3.81" (1.7–6.9)
Jul: 0.03" (so far)· normal 3.46" (1.3–5.4)
Aug: normal 2.75" (1.1–4.1)
Sep: normal 2.95" (1.3–4.5)
Oct: normal 3.34" (1.5–5.9)
Nov: normal 3.69" (1.8–6.4)
Dec: normal 2.99" (1.6–5.0)
Baseline 1991–2020 · Source: Open-Meteo07:03 PM
Your History · Mississippi River at Chester, IL
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Weather Conditions
WEATHER CONDITIONS
TODAY
96°
73°
FRI
99°
77°
SAT
97°
75°
SUN
88°
72°
MON
87°
67°
TUE
86°
66°
WED
90°
66°
FISH INDEX
Temperature
Too Hot
Wind
Moderate
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
05:41 AM
SUNSET
08:25 PM
14H 44M OF DAYLIGHT1H 22M REMAINING
MOON PHASE
Waning Gibbous
92% illuminated
Station Location
37.9008, -89.8302Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-02 19:03 UTC
Site #07020500·USGS
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