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

Current Water Temperature

84.6°F

Measurement Time: Saturday, July 18, 2026, 9:00 AM 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

91.8°F
Sunny
Sunny
79.2°F
92.1°F
33%
NNW 9.6 mph
11.1 mph
91.8°F
58.9°F
0 in
1%
6 mi
1014 mbar
5.8

Five Day Weather Forecast

Sunny
Sat
H: 92°F
L: 69°F
Sunny
Sun
H: 90°F
L: 63°F
Sunny
Mon
H: 94°F
L: 66°F
Sunny
Tue
H: 81°F
L: 61°F
Sunny
Wed
H: 77°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 13.3 μg/m3
PM10: 13.6 μg/m3
Carbon Monoxide: 141 μg/m3
Nitrogen Dioxide: 0.5 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 103 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:16 PM
Sunset: 8:54 PM
Daylight: 15 hrs 14 mins
Moonrise: 10:52 AM
Moon Transit: 5:06 PM
Moonset: 11:07 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

3:51 AM - 6:21 AM
4:36 PM - 7:06 PM

Minor Periods

12:00 AM - 12:00 AM
10:22 AM - 11:52 AM

Action Rating: 2 out of 5

Air Quality Alert issued July 18 at 9:31AM CDT by NWS Twin Cities/Chanhassen MN

Effective: Sat July 18, 2026, 9:31 AM
Expires: Mon July 20, 2026, 12:00 PM

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Barron, Chippewa, Dunn, Eau Claire, Pepin, Pierce, Polk, Rusk, St. Croix. WHAT...The PM2.5 AQI is expected to reach the Very Unhealthy (Purple) to Unhealthy (Red) level. WHERE...Statewide. WHEN...Until noon Monday. Precautionary/Preparedness Actions: For Very Unhealthy (Purple) AQI: Sensitive groups: Avoid all physical activity outdoors. Reschedule to a time when air quality is better or move activities indoors. People with asthma: Follow your asthma action plan and keep quick-relief medicine handy. People with heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider. Everyone else: Limit outdoor physical activity. Go indoors if you have symptoms. For Unhealthy (Red) AQI: Sensitive groups: Consider rescheduling or moving all activities inside. Go inside if you have symptoms. People with asthma: Follow your asthma action plan and keep quick-relief medicine handy. People with heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider. Everyone else: Keep outdoor activities shorter and less intense. Go inside if you have symptoms. Additional Details: Another round of smoke will move in from the north-northeast throughout the day on Saturday before settling over the state on Sunday. Most areas are expected to observe Unhealthy (Red) AQI PM2.5, with the heaviest impacts to the northeast where Very Unhealthy (Purple) AQI PM2.5 will be possible. Some areas to the southwest may only experience Unhealthy for Sensitive Groups (Orange) AQI PM2.5. This round of smoke may not reach the southwestern half of the state before sunset Saturday, meaning the smoke will arrive overnight, with statewide impacts expected by 6 a.m. Sunday morning. For more information on current air quality, please see: https://airquality.wi.gov


Saturday, July 18, 2026

Weather Forecast

Sunny
91.8°F
68.7°F
80.9°F
54%
0 in
2%
0%
10.7 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 9.28 μg/m3
PM10: 9.47 μg/m3
Carbon Monoxide: 135.96 μg/m3
Nitrogen Dioxide: 1.93 μg/m3
Sulphur Dioxide: 0.36 μg/m3
Ozone: 84.08 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:16 PM
Sunset: 8:54 PM
Daylight: 15 hrs 14 mins
Moonrise: 10:52 AM
Moon Transit: 5:06 PM
Moonset: 11:07 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

3:51 AM - 6:21 AM
4:36 PM - 7:06 PM

Minor Periods

12:00 AM - 12:00 AM
10:22 AM - 11:52 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
89.6°F
63.4°F
76.7°F
57%
0 in
3%
0%
12.8 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 12.17 μg/m3
PM10: 12.3 μg/m3
Carbon Monoxide: 236.25 μg/m3
Nitrogen Dioxide: 3.22 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 108.71 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:16 PM
Sunset: 8:53 PM
Daylight: 15 hrs 12 mins
Moonrise: 12:03 AM
Moon Transit: 5:49 PM
Moonset: 12:07 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

4:36 AM - 7:06 AM
5:19 PM - 7:49 PM

Minor Periods

11:33 AM - 1:03 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, July 20, 2026

Weather Forecast

Sunny
94°F
66.1°F
78.2°F
70%
1.47 in
71%
0%
16.8 mph
4.8


Air Quality

AQI: 1 - Good
PM2.5: 3.53 μg/m3
PM10: 3.7 μg/m3
Carbon Monoxide: 122.88 μg/m3
Nitrogen Dioxide: 2.96 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 104.54 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 1:17 PM
Sunset: 8:52 PM
Daylight: 15 hrs 10 mins
Moonrise: 1:12 PM
Moon Transit: 6:33 PM
Moonset: 12:25 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

5:19 AM - 7:49 AM
6:03 PM - 8:33 PM

Minor Periods

12:42 AM - 2:12 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, July 21, 2026

Weather Forecast

Sunny
80.5°F
61.1°F
71.4°F
59%
0 in
17%
0%
16.3 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 4.01 μg/m3
PM10: 4.08 μg/m3
Carbon Monoxide: 145.19 μg/m3
Nitrogen Dioxide: 1.04 μg/m3
Sulphur Dioxide: 0.27 μg/m3
Ozone: 83.83 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:17 PM
Sunset: 8:51 PM
Daylight: 15 hrs 8 mins
Moonrise: 2:21 PM
Moon Transit: 7:17 PM
Moonset: 12:44 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

6:03 AM - 8:33 AM
6:47 PM - 9:17 PM

Minor Periods

1:51 PM - 3:21 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
77.2°F
47.9°F
63.3°F
63%
0 in
5%
0%
11.4 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 10.06 μg/m3
PM10: 10.43 μg/m3
Carbon Monoxide: 190.88 μg/m3
Nitrogen Dioxide: 4.64 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 59.13 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:17 PM
Sunset: 8:50 PM
Daylight: 15 hrs 6 mins
Moonrise: 3:29 PM
Moon Transit: 8:03 PM
Moonset: 12:05 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

6:48 AM - 9:18 AM
7:33 PM - 10:03 PM

Minor Periods

2:59 PM - 4:29 PM
12:00 AM - 12:00 AM

Action Rating: 2 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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