Thief River Falls, MN Weather Forecast
Local 7-day forecast
Patchy Fog
Track current conditions, temperature changes, wind, and the full daily outlook for Thief River Falls, MN in one place.
Patchy fog. Partly cloudy. Low around 34, with temperatures rising to around 37 overnight. Southeast wind around 6 mph.
Local Weather Overview
This forecast page for Thief River Falls, MN is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 15, 2026 7:46 AM CDT.
The active forecast window currently covers Apr 15 to Apr 21, 2026 for Thief River Falls, MN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 7:46 AM CDT
- Forecast office
- FGF
- Source
- NOAA / NWS
Daily Outlook
This Week in Thief River Falls
Wednesday looks like the warmest upcoming period in Thief River Falls at 68 degrees F.
Saturday Night is the coolest period ahead with temperatures near 20 degrees F.
The strongest winds are forecast for Saturday at about 18 to 22 mph NW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 7:46 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- FGF
- Radar station
- KMVX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Patchy fog before 9am. Sunny. High near 68, with temperatures falling to around 66 in the afternoon. South wind 6 to 14 mph.
Mostly clear. Low around 42, with temperatures rising to around 44 overnight. South wind 6 to 10 mph.
Mostly sunny, with a high near 67. South southeast wind 8 to 18 mph.
A slight chance of rain between 7pm and 1am, then a chance of rain and snow. Mostly cloudy, with a low around 30. North northwest wind around 17 mph. Chance of precipitation is 50%. New snow accumulation of less than half an inch possible.
A chance of snow. Mostly cloudy, with a high near 34. North northwest wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
A chance of snow. Mostly cloudy, with a low around 21. North northwest wind around 20 mph. Chance of precipitation is 40%. New snow accumulation of less than half an inch possible.
A slight chance of snow before 7am. Partly sunny, with a high near 31. Northwest wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Partly cloudy, with a low around 20. Northwest wind 7 to 21 mph, with gusts as high as 31 mph.
Sunny, with a high near 41. Northwest wind 6 to 9 mph.
Mostly clear, with a low around 27. East wind 7 to 12 mph.
Mostly sunny, with a high near 59. South wind 12 to 20 mph.
Partly cloudy, with a low around 38. West southwest wind 13 to 16 mph.
Mostly sunny, with a high near 59. West northwest wind 12 to 15 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Apr 15
|
Patchy Fog
|
34°F |
6 mph
SE
|
|
Wednesday
Apr 15
|
Patchy Fog then Sunny
|
68°F |
6 to 14 mph
S
|
|
Wednesday Night
Apr 15
|
Mostly Clear
|
42°F |
6 to 10 mph
S
|
|
Thursday
Apr 16
|
Mostly Sunny
|
67°F |
8 to 18 mph
SSE
|
|
Thursday Night
Apr 16
|
Slight Chance Light Rain then Chance Rain And Snow
|
30°F |
17 mph
NNW
|
|
Friday
Apr 17
|
Chance Light Snow
|
34°F |
16 to 20 mph
NNW
|
|
Friday Night
Apr 17
|
Chance Light Snow
|
21°F |
20 mph
NNW
|
|
Saturday
Apr 18
|
Slight Chance Light Snow then Partly Sunny
|
31°F |
18 to 22 mph
NW
|
|
Saturday Night
Apr 18
|
Partly Cloudy
|
20°F |
7 to 21 mph
NW
|
|
Sunday
Apr 19
|
Sunny
|
41°F |
6 to 9 mph
NW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
27°F |
7 to 12 mph
E
|
|
Monday
Apr 20
|
Mostly Sunny
|
59°F |
12 to 20 mph
S
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
38°F |
13 to 16 mph
WSW
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
59°F |
12 to 15 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Thief River Falls.
