Water Temperature of the St. Croix River in St. Croix Falls, WI

Current Water Temperature

59.7°F

Measurement Time: Wednesday, May 13, 2026, 9:00 PM CDT

Temperature Locations

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St. Croix River

Station Name: ST. CROIX RIVER AT ST. CROIX FALLS, WI
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 719 feet

Nearest Address:
201–213 Park Rd
St. Croix Falls, WI 54024
Polk County

GPS Coordinates: 45.4069444, -92.6469444

Nearby Water Temperatures

St Croix River, St Croix Falls, WI (0.3 mi)
Sunrise River, North Branch, MN (14 mi)
Saint Croix River, Stillwater, MN (25.4 mi)
Willow River, Hudson, WI (27.5 mi)
Rice Creek, Mounds View, MN (34.4 mi)
Mississippi River, St Paul, MN (38.5 mi)
Shingle Creek, Minneapolis, MN (40.6 mi)
Lake George, Spring Valley, WI (42.8 mi)
Eau Galle River, Spring Valley, WI (43.2 mi)
Minnehaha Creek, Minneapolis, MN (43.7 mi)
Mississippi River, Hastings, MN (46 mi)
Mississippi River, Prescott, WI (46.1 mi)
St. Croix River, Danbury, WI (50.1 mi)
North Lake, Red Wing, MN (51.8 mi)
Clear Lake, Red Wing, MN (52.2 mi)

Weather for St. Croix Falls, Wisconsin

Current Weather

50°F
Clear
Clear
47°F
50.7°F
80%
SSE 7.4 mph
15.5 mph
47.1°F
37.3°F
0 in
0%
9 mi
1017 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 81°F
L: 48°F
Patchy rain nearby
Fri
H: 77°F
L: 54°F
Sunny
Sat
H: 71°F
L: 50°F
Moderate rain
Sun
H: 60°F
L: 44°F
Moderate rain
Mon
H: 79°F
L: 57°F

Air Quality

AQI: 1 - Good
PM2.5: 6.85 μg/m3
PM10: 8.05 μg/m3
Carbon Monoxide: 131.85 μg/m3
Nitrogen Dioxide: 3.95 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 60 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:06 PM
Sunset: 8:34 PM
Daylight: 14 hrs 52 mins
Moonrise: 4:05 AM
Moon Transit: 11:02 AM
Moonset: 6:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:32 AM - 1:02 PM

Minor Periods

5:48 PM - 7:18 PM
3:35 AM - 5:05 AM

Action Rating: 2 out of 5

Fire Weather Watch issued May 13 at 1:01PM CDT until May 15 at 9:00PM CDT by NWS Twin Cities/Chanhassen MN

Effective: Wed May 13, 2026, 1:01 PM
Expires: Thu May 14, 2026, 5:15 AM

...CRITICAL FIRE WEATHER CONDITIONS POSSIBLE FRIDAY... .Continued dry air combined with high winds after another frontal passage will lead to a very similar setup to what we saw on Tuesday. * AFFECTED AREA...Polk, Barron, and Rusk. * TIMING...From Friday afternoon through Friday evening. * WINDS...Southwest winds 15 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...Around 20 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.

A Fire Weather Watch means that critical fire weather conditions are possible during the valid watch time. These conditions could promote the rapid spread of wildfires.


Fire Weather Watch issued May 13 at 2:22PM CDT until May 15 at 9:00PM CDT by NWS Twin Cities/Chanhassen MN

Effective: Wed May 13, 2026, 2:22 PM
Expires: Thu May 14, 2026, 2:30 AM

...CRITICAL FIRE WEATHER CONDITIONS THURSDAY AND FRIDAY... .Southerly winds with gusts around 40 to 45 mph are expected tomorrow ahead of an approaching front. Relative humidity values will fall to 25 to 30 percent across portions of Minnesota during the afternoon. A Red Flag Warning has been issued for western Minnesota. Any small amount of moisture increase associated with the front will be short lived as northwest winds bring lower dew points back into Minnesota and Wisconsin Friday. Temperatures Friday are forecast to be in the 80s area wide, leading to RH values falling below 20 percent. The winds are not expected to be quite as strong as Thursday, so have maintained a Fire Weather Watch for now. * AFFECTED AREA...Polk, Barron, and Rusk. * TIMING...From Friday afternoon through Friday evening. * WINDS...West winds 10 to 15 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...Around 20 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.

A Fire Weather Watch means that critical fire weather conditions are possible during the valid watch time. These conditions could promote the rapid spread of wildfires which could become life-threatening. Check for forecast updates and a possible upgrade of this watch to a Red Flag Warning.


Fire Weather Watch issued May 13 at 1:01PM CDT until May 15 at 9:00PM CDT by NWS Twin Cities/Chanhassen MN

Effective: Wed May 13, 2026, 1:01 PM
Expires: Thu May 14, 2026, 5:15 AM

...CRITICAL FIRE WEATHER CONDITIONS POSSIBLE FRIDAY... .Continued dry air combined with high winds after another frontal passage will lead to a very similar setup to what we saw on Tuesday. * AFFECTED AREA...Portions of central, east central, and southwest Minnesota. * TIMING...From Friday morning through Friday evening. * WINDS...West winds 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...Around 17 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.

A Fire Weather Watch means that critical fire weather conditions are possible during the valid watch time. These conditions could promote the rapid spread of wildfires.


Fire Weather Watch issued May 13 at 2:22PM CDT until May 15 at 9:00PM CDT by NWS Twin Cities/Chanhassen MN

Effective: Wed May 13, 2026, 2:22 PM
Expires: Thu May 14, 2026, 2:30 AM

...CRITICAL FIRE WEATHER CONDITIONS THURSDAY AND FRIDAY... .Southerly winds with gusts around 40 to 45 mph are expected tomorrow ahead of an approaching front. Relative humidity values will fall to 25 to 30 percent across portions of Minnesota during the afternoon. A Red Flag Warning has been issued for western Minnesota. Any small amount of moisture increase associated with the front will be short lived as northwest winds bring lower dew points back into Minnesota and Wisconsin Friday. Temperatures Friday are forecast to be in the 80s area wide, leading to RH values falling below 20 percent. The winds are not expected to be quite as strong as Thursday, so have maintained a Fire Weather Watch for now. * AFFECTED AREA...Portions of central and east central Minnesota. * TIMING...From Friday morning through Friday evening. * WINDS...West winds 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...Around 15 to 20 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.

A Fire Weather Watch means that critical fire weather conditions are possible during the valid watch time. These conditions could promote the rapid spread of wildfires which could become life-threatening. Check for forecast updates and a possible upgrade of this watch to a Red Flag Warning.


Fire Weather Watch issued May 13 at 12:57PM CDT until May 15 at 9:00PM CDT by NWS Duluth MN

Effective: Wed May 13, 2026, 12:57 PM
Expires: Thu May 14, 2026, 7:30 AM

The National Weather Service in Duluth has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Friday afternoon through Friday evening. * AFFECTED AREA...In Wisconsin, Douglas, Bayfield, Ashland, Iron, Burnett, Washburn and Sawyer. * WINDS...Southwest 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 18 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.

A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.


Thursday, May 14, 2026

Weather Forecast

Patchy rain nearby
81.1°F
47.5°F
61.5°F
54%
0.01 in
72%
0%
21.3 mph
6.8


Air Quality

AQI: 1 - Good
PM2.5: 6.27 μg/m3
PM10: 7.19 μg/m3
Carbon Monoxide: 136.85 μg/m3
Nitrogen Dioxide: 3.07 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 78.16 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:06 PM
Sunset: 8:34 PM
Daylight: 14 hrs 52 mins
Moonrise: 4:05 AM
Moon Transit: 11:02 AM
Moonset: 6:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:32 AM - 1:02 PM

Minor Periods

5:48 PM - 7:18 PM
3:35 AM - 5:05 AM

Action Rating: 2 out of 5

Friday, May 15, 2026

Weather Forecast

Patchy rain nearby
77°F
54.2°F
64.5°F
65%
0.07 in
68%
0%
17.9 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 5 μg/m3
PM10: 5.67 μg/m3
Carbon Monoxide: 143.45 μg/m3
Nitrogen Dioxide: 3.5 μg/m3
Sulphur Dioxide: 1.44 μg/m3
Ozone: 86.88 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:06 PM
Sunset: 8:35 PM
Daylight: 14 hrs 55 mins
Moonrise: 4:29 AM
Moon Transit: 11:57 AM
Moonset: 7:43 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:27 AM - 1:57 PM

Minor Periods

7:13 PM - 8:43 PM
3:59 AM - 5:29 AM

Action Rating: 5 out of 5

Saturday, May 16, 2026

Weather Forecast

Sunny
70.9°F
49.6°F
61.9°F
50%
0 in
0%
0%
15.2 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 4.08 μg/m3
PM10: 5.19 μg/m3
Carbon Monoxide: 134.35 μg/m3
Nitrogen Dioxide: 5 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 85.88 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:07 PM
Sunset: 8:36 PM
Daylight: 14 hrs 57 mins
Moonrise: 5:00 AM
Moon Transit: 12:56 AM
Moonset: 9:09 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:26 AM - 2:56 PM

Minor Periods

8:39 PM - 10:09 PM
4:30 AM - 6:00 AM

Action Rating: 5 out of 5

Sunday, May 17, 2026

Weather Forecast

Moderate rain
59.8°F
43.6°F
53.5°F
80%
0.22 in
83%
0%
22.4 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 3.33 μg/m3
PM10: 3.53 μg/m3
Carbon Monoxide: 151.9 μg/m3
Nitrogen Dioxide: 4.01 μg/m3
Sulphur Dioxide: 1.44 μg/m3
Ozone: 72.4 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:07 PM
Sunset: 8:37 PM
Daylight: 14 hrs 59 mins
Moonrise: 5:41 AM
Moon Transit: 2:01 PM
Moonset: 10:31 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:36 AM - 3:06 AM
1:31 PM - 4:01 PM

Minor Periods

10:01 PM - 11:31 PM
5:11 AM - 6:41 AM

Action Rating: 4 out of 5

Monday, May 18, 2026

Weather Forecast

Moderate rain
79.2°F
57.3°F
64.6°F
91%
0.53 in
79%
0%
21 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 6.04 μg/m3
PM10: 6.36 μg/m3
Carbon Monoxide: 176.93 μg/m3
Nitrogen Dioxide: 3.83 μg/m3
Sulphur Dioxide: 1.83 μg/m3
Ozone: 76.15 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:07 PM
Sunset: 8:38 PM
Daylight: 15 hrs 2 mins
Moonrise: 6:36 AM
Moon Transit: 3:08 PM
Moonset: 11:40 PM
Moon Phase: New
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

1:42 AM - 4:12 AM
2:38 PM - 5:08 PM

Minor Periods

12:00 AM - 12:00 AM
6:06 AM - 7:36 AM

Action Rating: 4 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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