Fargo
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Fargo Weather in September

Fargo in September averages 22°C (72°F) during the day and 10°C (50°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Fargo in September

On average, there are about 8 days with rain during this month, averaging 72 mm (2.8 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Fargo in September

September tends to be one of the excellent months in Fargo, with 22°C (72°F) in the afternoon and 10°C (50°F) overnight. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 10°C (50°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Fargo in September

The month enjoys around 233 hours of sunshine, creating mostly sunny days with good weather conditions.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Fargo.

Fargo Temperature in September

Min Temperature
10°C (50°F)
Max Temperature
22°C (72°F)
Chance of Rain
28%
Precipitation
72 mm (2.8 in)
Rainy days
8 days
Humidity
69%
Sunshine
233 hours
Percentage Sunshine
60%

Fargo Weather by Month

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

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Fargo typically drop from around 25°C (77°F) at the start of September to approximately 20°C (68°F) by the end. Nights are cool, with lows typically ranging from 6°C (43°F) to 13°C (55°F).

Average temperatures in September

Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in September

Historical weather records for Fargo in September

Browse day-by-day weather records for Fargo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Fargo historical weather extremes in September

The extremes listed below come from historical weather data collected in Fargo from 1976 through 2026.

  • Fargo recorded its highest September temperature of 37°C (99°F) on September 6, 1978.
  • Fargo registered its coldest September night on September 22, 1995, with temperatures dropping to -4°C (25°F).

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 Fargo 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Fargo in September

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

  • Cycling
    9/10
  • Walking
    9/10
  • Barbeque
    8/10
  • Camping
    4/10
  • Outdoor sports
    9/10

Fargo 3-Day Forecast

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.