Thief River Falls
Weather by month
Current –

Thief River Falls Weather in September

September in Thief River Falls brings pleasant temperatures, with highs of 20°C (68°F) and nights dropping to 8°C (46°F). Rainfall is on the higher side this month, averaging around 68 mm (2.7 in), so keep a rain jacket handy.

Rainfall in Thief River Falls in September

Typically around 9 days of rainfall are expected, averaging 68 mm (2.7 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Thief River Falls in September

Thief River Falls in September is worth a visit. The temperature is excellent, with 20°C (68°F) during the day and 8°C (46°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 8°C (46°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Thief River Falls.

Thief River Falls Temperature in September

Min Temperature
8°C (46°F)
Max Temperature
20°C (68°F)
Chance of Rain
31%
Precipitation
68 mm (2.7 in)
Rainy days
9 days

Thief River Falls Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Thief River Falls - and find the best time to visit.

Best Places in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Thief River Falls in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days.

What To Do in Thief River Falls in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    10/10
  • Walking
    10/10
  • Camping
    4/10
  • Outdoor sports
    10/10

Thief River Falls 3-Day Forecast

More climate data for Thief River Falls

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.