Water Temperature of the Rainy River in International Falls, MN

Current Water Temperature

38.1°F

Measurement Time: Sunday, January 21, 2024, 8:15 AM CST

Temperature Locations

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Local Points of Interest

Canada–United States border

Rainy River

Station Name: International Falls (below)
Data Source: USGS

Elevation Above Sea Level: 1,073 feet

Nearest Address:
210 Shorewood Dr
International Falls, MN 56649
Koochiching County

GPS Coordinates: 48.5922, -93.4467

Nearby Water Temperatures

Rat Root River, International Falls, MN (7.7 mi)
Rainy River, Loman, MN (21.5 mi)
Rainy Lake, Kettle Falls, MN (37.5 mi)
Lake Grace, Taconite, MN (87.8 mi)
Lake Grace, Bovey, MN (89.8 mi)
Mississippi River, Grand Rapids, MN (94 mi)
Dunka River, Babbitt, MN (95.4 mi)
Partrige River, Babbitt, MN (97.2 mi)
Dunka River, Babbitt, MN (97.2 mi)
Kawishiwi River, Ely, MN (99.4 mi)
Saint Louis River, Hoyt Lakes, MN (100.6 mi)
Baptism River, Illgen City, MN (135.3 mi)
Lake Superior, Two Harbors, MN (136.6 mi)
Knife River, Knife River, MN (137.2 mi)
Lake Superior, Duluth, MN (138.1 mi)

Weather for International Falls, Minnesota

Current Weather

-3.5°F
Overcast
Overcast
-18.4°F
-9.9°F
75%
WNW 8.1 mph
12.3 mph
-26.9°F
-17.1°F
0 in
100%
9 mi
1018 mbar
0

Five Day Weather Forecast

Cloudy
Thu
H: 6°F
L: -10°F
Partly Cloudy
Fri
H: 10°F
L: -1°F
Partly Cloudy
Sat
H: 15°F
L: 1°F
Freezing fog
Sun
H: 4°F
L: -14°F
Freezing fog
Mon
H: 19°F
L: 3°F

Air Quality

PM2.5: 1.35 μg/m3
PM10: 1.45 μg/m3
Carbon Monoxide: 143.85 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 8:06 AM
Sun Transit: 12:17 AM
Sunset: 4:29 PM
Daylight: 8 hrs 23 mins
Moonrise: 2:13 PM
Moon Transit: 11:03 PM
Moonset: 6:44 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

9:31 AM - 12:01 AM
12:00 AM - 12:00 AM

Minor Periods

1:43 PM - 3:13 PM
6:14 AM - 7:44 AM

Action Rating: 3 out of 5

Cold Weather Advisory issued December 31 at 2:55AM CST until January 1 at 10:00AM CST by NWS Duluth MN

Effective: Wed December 31, 2025, 2:55 AM
Expires: Thu January 1, 2026, 10:00 AM

* WHAT...Very cold wind chills as low as 42 below zero expected. * WHERE...Koochiching, Central and North St. Louis, Cook and Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation and the Bois Forte Band, Lake Vermilion and, Nett Lake areas. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...From midnight tonight to 10 AM CST Thursday. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Pay particular attention to people celebrating the New Year outdoors and ensure everyone makes it back indoors safely, including anyone traveling home after festivities.


Cold Weather Advisory issued December 31 at 12:55PM CST until January 1 at 10:00AM CST by NWS Duluth MN

Effective: Wed December 31, 2025, 12:55 PM
Expires: Thu January 1, 2026, 1:00 AM

* WHAT...Very cold wind chills as low as 34 below zero expected. * WHERE...Koochiching, Central and North St. Louis, North Cook and Lake Counties. This includes the Tribal Lands of the Bois Forte Band, Lake Vermilion and, Nett Lake areas. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...From midnight tonight to 10 AM CST Thursday. * IMPACTS...The dangerously cold wind chills as low as 35 below zero could cause frostbite on exposed skin in as little as 10 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Pay particular attention to people celebrating the New Year outdoors and ensure everyone makes it back indoors safely, including anyone traveling home after festivities.


Cold Weather Advisory issued December 31 at 11:11PM CST until January 1 at 10:00AM CST by NWS Duluth MN

Effective: Wed December 31, 2025, 11:11 PM
Expires: Thu January 1, 2026, 10:00 AM

* WHAT...Very cold wind chills as low as 39 below zero expected. * WHERE...Koochiching, Central and North St. Louis, North Cook and Lake Counties. This includes the Tribal Lands of the Bois Forte Band, Lake Vermilion and, Nett Lake areas. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...Until 10 AM CST Thursday. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Pay particular attention to people celebrating the New Year outdoors and ensure everyone makes it back indoors safely, including anyone traveling home after festivities.


Thursday, January 1, 2026

Weather Forecast

Cloudy
5.7°F
-10.3°F
-1.7°F
70%
0 in
0%
0%
10.7 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 1.35 μg/m3
PM10: 1.46 μg/m3
Carbon Monoxide: 149.81 μg/m3
Nitrogen Dioxide: 1.92 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 71.08 μg/m3

Astronomical

Sunrise: 8:06 AM
Sun Transit: 12:17 AM
Sunset: 4:29 PM
Daylight: 8 hrs 23 mins
Moonrise: 2:13 PM
Moon Transit: 11:03 PM
Moonset: 6:44 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

9:31 AM - 12:01 AM
12:00 AM - 12:00 AM

Minor Periods

1:43 PM - 3:13 PM
6:14 AM - 7:44 AM

Action Rating: 3 out of 5

Friday, January 2, 2026

Weather Forecast

Partly Cloudy
9.9°F
-0.9°F
3.9°F
68%
0 in
0%
0%
11.2 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.45 μg/m3
PM10: 2.62 μg/m3
Carbon Monoxide: 157.61 μg/m3
Nitrogen Dioxide: 2.98 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 72.4 μg/m3

Astronomical

Sunrise: 8:06 AM
Sun Transit: 12:17 AM
Sunset: 4:30 PM
Daylight: 8 hrs 24 mins
Moonrise: 3:20 PM
Moon Transit: 12:00 AM
Moonset: 7:56 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:38 AM - 1:08 PM

Minor Periods

2:50 PM - 4:20 PM
7:26 AM - 8:56 AM

Action Rating: 4 out of 5

Saturday, January 3, 2026

Weather Forecast

Partly Cloudy
15.1°F
0.7°F
9.7°F
81%
0 in
0%
5%
9.6 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 2.61 μg/m3
PM10: 2.75 μg/m3
Carbon Monoxide: 164.91 μg/m3
Nitrogen Dioxide: 3.04 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 72.88 μg/m3

Astronomical

Sunrise: 8:06 AM
Sun Transit: 12:18 AM
Sunset: 4:31 PM
Daylight: 8 hrs 25 mins
Moonrise: 4:41 PM
Moon Transit: 12:09 AM
Moonset: 8:50 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:43 AM - 2:13 PM

Minor Periods

4:11 PM - 5:41 PM
8:20 AM - 9:50 AM

Action Rating: 5 out of 5

Sunday, January 4, 2026

Weather Forecast

Freezing fog
4.1°F
-13.6°F
-2.8°F
90%
0.06 in
84%
18%
6.5 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 3.21 μg/m3
PM10: 3.33 μg/m3
Carbon Monoxide: 171.13 μg/m3
Nitrogen Dioxide: 3.36 μg/m3
Sulphur Dioxide: 1.8 μg/m3
Ozone: 70.85 μg/m3

Astronomical

Sunrise: 8:06 AM
Sun Transit: 12:18 AM
Sunset: 4:32 PM
Daylight: 8 hrs 27 mins
Moonrise: 6:08 PM
Moon Transit: 1:13 AM
Moonset: 9:27 AM
Moon Phase: Full
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

12:43 AM - 3:13 AM
12:44 AM - 3:14 PM

Minor Periods

5:38 PM - 7:08 PM
8:57 AM - 10:27 AM

Action Rating: 3 out of 5

Monday, January 5, 2026

Weather Forecast

Freezing fog
19.3°F
2.6°F
8.7°F
96%
0.01 in
74%
68%
4.7 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 8:06 AM
Sun Transit: 12:19 AM
Sunset: 4:34 PM
Daylight: 8 hrs 28 mins
Moonrise: 7:32 PM
Moon Transit: 2:10 AM
Moonset: 9:54 AM
Moon Phase: Full
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

1:40 AM - 4:10 AM
1:38 PM - 4:08 PM

Minor Periods

7:02 PM - 8:32 PM
9:24 AM - 10:54 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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