MEDIAN FLOW RATE · 1 YEAR
1cfs 9.5% vs avg
Optimal band: 3–3 cfs
PERIOD HIGH
186cfs
PERIOD LOW
1cfs
RUNNABLE
8%
last 1 year in band
Gauge Height
0.83ft
Precipitation History
Precipitation · YTD
WetWetter than normal
2026 to date
25.0in
+21% vs normal
25.01 in of precipitation so far this year, 21% above the 30-year normal of 20.66 in for this point in the season.
YTD Total
25.0in
This year so far
Normal to Date
20.7in
30-yr average
Typical Range
14.9–26.9in
10th–90th pct YTD
Departure
+21%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 2.50" · normal 2.08" (1.1–3.2)
Feb: 0.66" · normal 1.97" (0.8–3.6)
Mar: 4.04" · normal 2.54" (1.5–4.3)
Apr: 7.52" · normal 4.15" (2.4–6.1)
May: 1.31" · normal 4.40" (1.8–7.2)
Jun: 6.69" · normal 4.05" (1.8–6.6)
Jul: 2.30" (so far)· normal 3.67" (2.0–4.9)
Aug: normal 3.70" (1.9–5.7)
Sep: normal 2.98" (1.3–5.4)
Oct: normal 3.21" (1.4–6.1)
Nov: normal 2.42" (1.2–4.2)
Dec: normal 2.13" (0.9–3.8)
Baseline 1991–2020 · Source: Open-Meteo01:03 UTC
Your History · MC DONALD CREEK NEAR MOUNT PROSPECT, IL
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Weather Conditions
WEATHER CONDITIONS
TODAY
87°
65°
MON
96°
68°
TUE
95°
72°
WED
95°
75°
THU
92°
74°
FRI
92°
71°
SAT
93°
77°
FISH INDEX
Temperature
Too Hot
Wind
Calm
Pressure
Stable
Moon Phase
Peak Activity
DAYLIGHT
SUNRISE
05:27 AM
SUNSET
08:27 PM
15H 0M OF DAYLIGHT
MOON PHASE
New Moon
3% illuminated
PEAK ACTIVITY
Station Location
42.0953, -87.9128Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-12 00:00 UTC
Site #05529500·USGS
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