Lake Local

Lake Kosh Local

Authorized water levels

Authorized range

Lake level

776.87ft

Observed Oct 4, 2026, 4:00 PM CDT

Within authorized range

Target: 777.00 ft
Range: 774.00–778.00 ft
Season: Summer

Below the stated target. NAVD88 · fasdf3. Status is stated in text and is not conveyed by color alone.

From Water-level order 43344322344.

Measured levelOperating rangeTarget

Hover or focus a point for details

Current readings

ROCK RIVER AT NEWVILLE, WI: 3,090cfs; Oct 4, 2026, 4:00 PM CDT
FORT ATKINSON WWTP precipitation: 0in; Oct 4, 2026, 7:00 AM CDT
FORT ATKINSON WWTP temperature: 60°F; Oct 4, 2026, 7:00 AM CDT

Structures

Local Dam gates

Current positions at the district structures · 0 of 8 open.

Local Dam

Logged Aug 22, 2026, 11:23 AM CDT.

Gate 1 · east

Closed

Gate 2 · east

Closed

Gate 3 · east

Closed

Gate 4 · east

Closed

Gate 5 · west

Closed

Gate 6 · west

Closed

Gate 7 · west

Closed

Gate 8 · west

Closed

District updates

Public operations notes

Updates shared by lake operators.

No public operations notes have been posted yet.

Outlook

Lake-area forecast

National Weather Service forecast, issued Oct 4, 2026, 2:36 PM CDT.

This Afternoon

Temperature: 67°F

Sunny

0% chance of precipitation

Wind NW 10 mph

Tonight 41°F. Clear then Patchy Frost

Details

Sunny, with a high near 67. Northwest wind around 10 mph.

Monday
High 63°F
Low 45°F
Patchy Frost then Sunny
Details
Patchy frost before 9am. Sunny, with a high near 63. Northwest wind 0 to 5 mph.
Tuesday
High 70°F
Low 52°F
Sunny
Details
Sunny, with a high near 70. South wind 10 to 20 mph, with gusts as high as 30 mph.
Wednesday
High 70°F
Low 46°F
Sunny
Details
Sunny, with a high near 70. Northwest wind 5 to 10 mph.

History

Conditions & readings

Latest readings plus archived water data for 2026-09-28 through 2026-10-04.

Data sources & observation times

Provider stations that supply the current readings above.

FORT ATKINSON WWTP precipitation
ACIS · USC00472869
ACIS
0 in
Observed Oct 4, 2026, 7:00 AM CDT
FORT ATKINSON WWTP temperature
ACIS · USC00472869
ACIS
60 °F
Observed Oct 4, 2026, 7:00 AM CDT
LAKE KOSHKONONG NEAR NEWVILLE, WI
USGS · 05427235 · 62615
USGS Water Data for 05427235
776.87 ft
Observed Oct 4, 2026, 4:00 PM CDT
ROCK RIVER AT NEWVILLE, WI
USGS · 05427530 · 00060
USGS Water Data for 05427530
3,090 cfs
Observed Oct 4, 2026, 4:00 PM CDT

Supporting conditions

Discharge, precipitation, and temperature for the selected archive period. Lake level is shown in the operating range chart above.

ROCK RIVER AT NEWVILLE, WI

cfs

ROCK RIVER AT NEWVILLE, WI: 1900 readings from Sep 28 to Oct 4. Latest 3090.00 cfs; min 1520.00; max 5620.00.

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FORT ATKINSON WWTP precipitation

FORT ATKINSON WWTP precipitation: 7 readings from Sep 28 to Oct 4. Latest 0.00 in; min 0.00; max 0.71.

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FORT ATKINSON WWTP temperature

°F

FORT ATKINSON WWTP temperature: 7 readings from Sep 28 to Oct 4. Latest 60.00 °F; min 54.00; max 64.00.

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Archived observations from 2026-09-28 through 2026-10-04

Oct 4, 2026, 4:00 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.87 ft
Oct 4, 2026, 4:00 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,090 cfs
Oct 4, 2026, 3:55 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,150 cfs
Oct 4, 2026, 3:50 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,130 cfs
Oct 4, 2026, 3:45 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.87 ft
Oct 4, 2026, 3:45 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,290 cfs
Oct 4, 2026, 3:40 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,290 cfs
Oct 4, 2026, 3:35 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,250 cfs
Oct 4, 2026, 3:30 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.86 ft
Oct 4, 2026, 3:30 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,110 cfs
Oct 4, 2026, 3:25 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,090 cfs
Oct 4, 2026, 3:20 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,020 cfs
Oct 4, 2026, 3:15 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.89 ft
Oct 4, 2026, 3:15 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,070 cfs
Oct 4, 2026, 3:10 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,070 cfs
Oct 4, 2026, 3:05 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,910 cfs
Oct 4, 2026, 3:00 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.89 ft
Oct 4, 2026, 3:00 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,890 cfs
Oct 4, 2026, 2:55 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,990 cfs
Oct 4, 2026, 2:50 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,930 cfs
Oct 4, 2026, 2:45 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.85 ft
Oct 4, 2026, 2:45 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,140 cfs
Oct 4, 2026, 2:40 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,120 cfs
Oct 4, 2026, 2:35 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,910 cfs
Oct 4, 2026, 2:30 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.88 ft
Oct 4, 2026, 2:30 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,980 cfs
Oct 4, 2026, 2:25 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,910 cfs
Oct 4, 2026, 2:20 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,910 cfs
Oct 4, 2026, 2:15 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.86 ft
Oct 4, 2026, 2:15 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,980 cfs
Oct 4, 2026, 2:10 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,110 cfs
Oct 4, 2026, 2:05 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,930 cfs
Oct 4, 2026, 2:00 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.87 ft
Oct 4, 2026, 2:00 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,170 cfs
Oct 4, 2026, 1:55 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,900 cfs
Oct 4, 2026, 1:50 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,010 cfs
Oct 4, 2026, 1:45 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.87 ft
Oct 4, 2026, 1:45 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,910 cfs
Oct 4, 2026, 1:40 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,950 cfs
Oct 4, 2026, 1:35 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,900 cfs
Oct 4, 2026, 1:30 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.87 ft
Oct 4, 2026, 1:30 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,900 cfs
Oct 4, 2026, 1:25 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,020 cfs
Oct 4, 2026, 1:20 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,110 cfs
Oct 4, 2026, 1:15 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.87 ft
Oct 4, 2026, 1:15 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,140 cfs
Oct 4, 2026, 1:10 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,050 cfs
Oct 4, 2026, 1:05 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,000 cfs
Oct 4, 2026, 1:00 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.85 ft
Oct 4, 2026, 1:00 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,890 cfs
Oct 4, 2026, 12:55 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,840 cfs
Oct 4, 2026, 12:50 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,060 cfs
Oct 4, 2026, 12:45 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.89 ft
Oct 4, 2026, 12:45 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,080 cfs
Oct 4, 2026, 12:40 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,160 cfs
Oct 4, 2026, 12:35 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,960 cfs
Oct 4, 2026, 12:30 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.88 ft
Oct 4, 2026, 12:30 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,970 cfs
Oct 4, 2026, 12:25 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,970 cfs
Oct 4, 2026, 12:20 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,110 cfs
Oct 4, 2026, 12:15 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.86 ft
Oct 4, 2026, 12:15 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,130 cfs
Oct 4, 2026, 12:10 PM CDT	ROCK RIVER AT NEWVILLE, WI	3,210 cfs
Oct 4, 2026, 12:05 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,950 cfs
Oct 4, 2026, 12:00 PM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.87 ft
Oct 4, 2026, 12:00 PM CDT	ROCK RIVER AT NEWVILLE, WI	2,980 cfs
Oct 4, 2026, 11:55 AM CDT	ROCK RIVER AT NEWVILLE, WI	3,010 cfs
Oct 4, 2026, 11:50 AM CDT	ROCK RIVER AT NEWVILLE, WI	3,170 cfs
Oct 4, 2026, 11:45 AM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.9 ft
Oct 4, 2026, 11:45 AM CDT	ROCK RIVER AT NEWVILLE, WI	3,000 cfs
Oct 4, 2026, 11:40 AM CDT	ROCK RIVER AT NEWVILLE, WI	3,180 cfs
Oct 4, 2026, 11:35 AM CDT	ROCK RIVER AT NEWVILLE, WI	2,970 cfs
Oct 4, 2026, 11:30 AM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.86 ft
Oct 4, 2026, 11:30 AM CDT	ROCK RIVER AT NEWVILLE, WI	3,020 cfs
Oct 4, 2026, 11:25 AM CDT	ROCK RIVER AT NEWVILLE, WI	2,970 cfs
Oct 4, 2026, 11:20 AM CDT	ROCK RIVER AT NEWVILLE, WI	2,990 cfs
Oct 4, 2026, 11:15 AM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.87 ft
Oct 4, 2026, 11:15 AM CDT	ROCK RIVER AT NEWVILLE, WI	2,990 cfs
Oct 4, 2026, 11:10 AM CDT	ROCK RIVER AT NEWVILLE, WI	2,990 cfs
Oct 4, 2026, 11:05 AM CDT	ROCK RIVER AT NEWVILLE, WI	2,970 cfs
Oct 4, 2026, 11:00 AM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.88 ft
Oct 4, 2026, 11:00 AM CDT	ROCK RIVER AT NEWVILLE, WI	3,000 cfs
Oct 4, 2026, 10:55 AM CDT	ROCK RIVER AT NEWVILLE, WI	3,050 cfs
Oct 4, 2026, 10:50 AM CDT	ROCK RIVER AT NEWVILLE, WI	3,040 cfs
Oct 4, 2026, 10:45 AM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.86 ft
Oct 4, 2026, 10:45 AM CDT	ROCK RIVER AT NEWVILLE, WI	2,990 cfs
Oct 4, 2026, 10:40 AM CDT	ROCK RIVER AT NEWVILLE, WI	2,960 cfs
Oct 4, 2026, 10:35 AM CDT	ROCK RIVER AT NEWVILLE, WI	2,940 cfs
Oct 4, 2026, 10:30 AM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.86 ft
Oct 4, 2026, 10:30 AM CDT	ROCK RIVER AT NEWVILLE, WI	3,110 cfs
Oct 4, 2026, 10:25 AM CDT	ROCK RIVER AT NEWVILLE, WI	3,020 cfs
Oct 4, 2026, 10:20 AM CDT	ROCK RIVER AT NEWVILLE, WI	3,040 cfs
Oct 4, 2026, 10:15 AM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.88 ft
Oct 4, 2026, 10:15 AM CDT	ROCK RIVER AT NEWVILLE, WI	2,960 cfs
Oct 4, 2026, 10:10 AM CDT	ROCK RIVER AT NEWVILLE, WI	2,900 cfs
Oct 4, 2026, 10:05 AM CDT	ROCK RIVER AT NEWVILLE, WI	2,980 cfs
Oct 4, 2026, 10:00 AM CDT	LAKE KOSHKONONG NEAR NEWVILLE, WI	776.88 ft
Oct 4, 2026, 10:00 AM CDT	ROCK RIVER AT NEWVILLE, WI	2,980 cfs
Oct 4, 2026, 9:55 AM CDT	ROCK RIVER AT NEWVILLE, WI	3,030 cfs
Oct 4, 2026, 9:50 AM CDT	ROCK RIVER AT NEWVILLE, WI	3,170 cfs

Place

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Authorized range

Current readings

Local Dam gates

Local Dam

Gate 1 · east

Gate 2 · east

Gate 3 · east

Gate 4 · east

Gate 5 · west

Gate 6 · west

Gate 7 · west

Gate 8 · west

Public operations notes

Lake-area forecast

This Afternoon

Monday

Tuesday

Wednesday

Conditions & readings

Choose dates

Data sources & observation times

Supporting conditions

ROCK RIVER AT NEWVILLE, WI

FORT ATKINSON WWTP precipitation

FORT ATKINSON WWTP temperature

Lake, dam, and gauges

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