Thief River Falls, MN Weather

Pennington County12:20 AM CDT48.12°N, 96.18°WElevation 1,132 ft

Current conditions

Partly Cloudy
63°
Partly Cloudy
Feels like 63°
High 58°·Low 53° tonight
WindSSE 25 mph gusts 35 mph
Humidity65%
Dew point51°
Cloud cover33%
UV index0 Low
Sunrise7:58 AM
Sunset6:21 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • Friday Night

    A chance of showers and thunderstorms before 10pm. Mostly cloudy. Low around 53, with temperatures rising to around 63 overnight. South wind 22 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

  • Saturday

    Mostly sunny, with a high near 58. West southwest wind 16 to 23 mph, with gusts as high as 35 mph.

  • Saturday Night

    Mostly clear, with a low around 31. West wind 7 to 13 mph.

National Weather Service forecast updated 18 hrs ago.

Hourly

Hourly forecast
  1. Now Partly Cloudy 63°
  2. 1 AM Partly Cloudy 63°
  3. 2 AM Partly Cloudy 63°
  4. 3 AM Partly Cloudy 63°
  5. 4 AM Partly Cloudy 63°
  6. 5 AM Mostly Clear 63°
  7. 6 AM Mostly Sunny 60°
  8. 7 AM Partly Sunny 59°
  9. 8 AM Mostly Cloudy 57°
  10. 9 AM Cloudy 54°
  11. 10 AM Partly Sunny 54°
  12. 11 AM Mostly Sunny 54°
  13. 12 PM Mostly Sunny 55°
  14. 1 PM Sunny 54°
  15. 2 PM Sunny 56°
  16. 3 PM Sunny 54°
  17. 4 PM Sunny 54°
  18. 5 PM Sunny 53°
  19. 6 PM Mostly Clear 51°
  20. 7 PM Clear 47°
  21. 8 PM Mostly Clear 45°
  22. 9 PM Mostly Clear 43°
  23. 10 PM Mostly Clear 42°
  24. 11 PM Mostly Clear 41°

10-day forecast

Details
  1. TonightOct 22 Partly Cloudy Partly Cloudy54°
  2. FriOct 23 Partly Sunny then Chance Showers And Thunderstorms Partly Sunny then Chance Showers And Thunderstorms52%53°75°
  3. TodayOct 24 Mostly Sunny Mostly Sunny31°58°
  4. SunOct 25 Sunny Sunny26°45°
  5. MonOct 26 Mostly Cloudy Mostly Cloudy21%28°43°
  6. TueOct 27 Chance Light Rain Chance Light Rain37%35°47°
  7. WedOct 28 Chance Light Rain Chance Light Rain54%32°51°
  8. ThuOct 29 Slight Chance Light Rain then Partly Sunny Slight Chance Light Rain then Partly Sunny20%47°
  9. FriOct 30 Partly cloudy Partly cloudy27°39°
  10. SatOct 31 Partly cloudy Partly cloudy26°40°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news in Minnesota

More weather news

Air quality

42
Good
Fine particles (PM2.5)

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • SatGood (28)
  • SunGood
  • MonGood

Northwestern Minnesota, MN reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:58 AM
Sunset 6:21 PM
Daylight 10 h 22 min (−3 min 18 s tomorrow)
Waxing Gibbous · 95% lit
Moonrise 5:15 PM Moonset 6:10 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Month to date0.05 in (normal 0.00 in)

Thief River Falls Municipal Ap, records since 1903. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in FGF, issued 17 hrs ago

Key Messages

- Well above average temperatures today, followed by near average temperatures this weekend into next week.

- There is a medium chance for scattered weak thunderstorms Friday afternoon. Main hazard would be lightning.

Discussion

Issued at 342 PM CDT Thu Oct 22 2026

...Synopsis...

Blocked upper ridging remains over the central CONUS, with upper troughing over the West Coast. This upper ridging is driving well above average temperatures in the 70s currently over the region. Weak embedded impulse moving through the flow is utilizing weak instability aloft, helping spark scattered rain/virga showers in northeast ND and northwest MN this afternoon into evening. Dry air in the lower levels will prevent much of this precipitation from reaching the ground, thus added sprinkles to the forecast to account for this.

On Friday, well above average temperatures will occur once more with widespread 70s forecast during the day. While temperatures will be mild, gusty southerly winds 20-40 mph will also build starting Friday by late morning, lasting through the day.

Upper trough in the West will attempt to break eastward, although all guidance suggests this will occur in a split-flow- like regime, with the northern branch of the upper trough in northern CONUS and Canada separating from the southern branch lingering in the Southwest. As it does this, it brings sufficient moisture and lift to bring scattered showers Friday afternoon into evening. Most guidance also indicates at sufficient instability aloft to bring lightning/thunderstorms into the conversation. A lack of better instability, moisture, and wind shear spacing will mitigate how strong thunderstorms will be - likely keeping storms weak.

Strong cold front moves through Friday night into Saturday driven by the northern branch of the upper trough. This ends our well above average temperatures, with most locations seeing daily high temperatures Saturday occur just ahead of this cold front, occurring early morning Saturday.

Aviation

Issued at 705 AM CDT Fri Oct 23 2026

Will have increasing high and mid clouds going thru today. South-southeast winds increase and will become gusty this afternoon with gusts over 30 kts likely mid afternoon thru mid evening. Low level jet over the area this evening with a south jet of around 45-50 kts at 2000 ft agl focused in Minnesota. Wind shift to the southwest and then west very late tonight into Devils Lake basin.

Fgf Watches

ND...None. MN...None.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.