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 perfect 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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Fargo's climate page.
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%
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 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 2025.
- 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
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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Fargo's climate page.
Temperature Rainfall Sunshine Humidity
See the full Fargo climate overview or explore weather in the United States of America.
