Updated
Grand Calumet River
River
Use caution — an official advisory is in effect
Use cautionUse caution — an official advisory is in effect: water temperature is 66°F, cool enough to cause cold-water shock on a sudden entry.
- Water temperature is 66°F, cool enough to cause cold-water shock on a sudden entry.
- A Severe Thunderstorm Watch is in effect for Boone, IL; Cook, IL; De Kalb, IL; DuPage, IL; Ford, IL; Grundy, IL; Iroquois, IL; Kane, IL and other areas.
Use caution — an official advisory is in effect
Use cautionUse caution — an official advisory is in effect: water temperature is 66°F, cool enough to cause cold-water shock on a sudden entry.
- Water temperature is 66°F, cool enough to cause cold-water shock on a sudden entry. — USGS gauge 04092677, as of Aug 21, 7:30 PM gauge-local time
- A Severe Thunderstorm Watch is in effect for Boone, IL; Cook, IL; De Kalb, IL; DuPage, IL; Ford, IL; Grundy, IL; Iroquois, IL; Kane, IL and other areas. — NWS Chicago IL
- Flow is above the 75th percentile for Aug 22 (median 479 ft³/s over 27 years); fast water is the top river-drowning risk. — USGS daily streamflow statistics, as of Aug 21, 7:30 PM gauge-local time
Flow is high for this date — above the 75th percentile for Aug 22 (median 479 ft³/s over 27 years).
No official beach-advisory feed for Indiana yet — follow posted signs and local guidance.
Live, provisional data from USGS gauge GRAND CALUMET RIVER AT INDUSTRIAL HWY AT GARY, IN (2 mi away), as of Aug 21, 7:30 PM gauge-local time.
Weather at Grand Calumet River
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Frequently asked questions
- Where is Grand Calumet River?
- Grand Calumet River is a river in Indiana.
- What is the water temperature at Grand Calumet River?
- As of August 21, 2026, the water temperature at Grand Calumet River in Indiana is 66°F (19°C), measured by USGS gauge 04092677, 2 miles away.
- Can you swim at Grand Calumet River?
- Use caution — an official advisory is in effect: water temperature is 66°F, cool enough to cause cold-water shock on a sudden entry. Checked August 21, 2026.
- How is Grand Calumet River rated?
- Grand Calumet River in Indiana has an average visitor rating of 4 out of 5, based on 4 reviews.
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- ›Wear life jackets when on the water
- ›Be aware of rapids and potential hazards
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