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United States weather

Weather in Frisco, Texas for September 2025

Your guide to Frisco weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Meteorological - Air Quality Alert - See hour by hour.

    • Temperatures

  • Until now, September 2025 in Frisco is slightly cooler than the historical average by -0.9 °F.

  • The forecast for the upcoming days in Frisco predicts a temperature of 35.5 °F, which is slightly above the historical average.

  • In general, the average temperature in Frisco at the beginning of September is 34.7 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 35.3 °F by the end of September.

    • Rain 🌧️

  • The climate of Frisco in September is notably wet, with an average of 11 rainy days, and a total of 70.6 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
19
Dry days
Average rainy days
11
Rainy days
Average snowy days
0
Snow days
Average temperatures
35°/22°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
50 %
Avg humidity

Frisco Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Partly cloudy
35°
2
Cloudy
34°
3
Thundery outbreaks possible
34°
4
Thundery outbreaks possible
35°
5
Partly cloudy
36°
6
Thundery outbreaks possible
34°
7
Sunny
35°
8
Sunny
36°
9
Sunny
35°
10
Sunny
36°
11
Light rain shower
33°
12
Torrential rain shower
33°
13
Overcast
33°
14
Overcast
33°
15
Weather Alert Thundery outbreaks possible
37°
16
Sunny
38°
17
Sunny
38°
18
Sunny
35°
19
Patchy rain possible
34°
20
Sunny
35°
21
Sunny
35°
22
Patchy rain possible
35°
23
Patchy rain possible
35°
24
Sunny
33°
25
Sunny
34°
26
Sunny
40°
27
Sunny
39°
28
Sunny
29°
29
Sunny
36°
30
Sunny
36°

Temperatures trend during September in Frisco

See the weather trend as well as the moving average line

September weather in Frisco day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Partly cloudy
Partly cloudy
 35° /22° 1.9 mm 8
Sept. 2 Cloudy
Cloudy
 34° /23° 4.1 mm 7
Sept. 3 Thundery outbreaks possible
Thundery outbreaks possible
 34° /22° 2.3 mm 8
Sept. 4 Thundery outbreaks possible
Thundery outbreaks possible
 35° /22° 1 mm 8
Sept. 5 Partly cloudy
Partly cloudy
 36° /23° 0.4 mm 8
Sept. 6 Thundery outbreaks possible
Thundery outbreaks possible
 34° /22° 8.8 mm 8
Sept. 7 Sunny
Sunny
 35° /22° 0 mm 8
Sept. 8 Sunny
Sunny
 36° /21° 0.2 mm 9
Sept. 9 Sunny
Sunny
 35° /19° 0 mm 8
Sept. 10 Sunny
Sunny
 36° /19° 0 mm 8
Sept. 11 Light rain shower
Light rain shower
 33° /22° 1 mm 8
Sept. 12 Torrential rain shower
Torrential rain shower
 33° /22° 21.9 mm 8
Sept. 13 Overcast
Overcast
 33° /23° 0 mm 8
Sept. 14 Overcast
Overcast
 33° /22° 0.3 mm 7
Sept. 15 Thundery outbreaks possible
Thundery outbreaks possible
 37° /24° 0 mm 1.8
Sept. 16 Sunny
Sunny
 38° /25° 0 mm 1.8
Sept. 17 Sunny
Sunny
 38° /25° 0 mm 1.8
Sept. 18 Sunny
Sunny
 35° /25° 0 mm 1.8
Sept. 19 Patchy rain possible
Patchy rain possible
 34° /23° 1.1 mm 0
Sept. 20 Sunny
Sunny
 35° /25° 0 mm 7
Sept. 21 Sunny
Sunny
 35° /25° 0 mm 7
Sept. 22 Patchy rain possible
Patchy rain possible
 35° /25° 0.5 mm 6
Sept. 23 Patchy rain possible
Patchy rain possible
 35° /24° 0.9 mm 6
Sept. 24 Sunny
Sunny
 33° /21° 0 mm 7
Sept. 25 Sunny
Sunny
 34° /21° 0 mm 7
Sept. 26 Sunny
Sunny
 40° /25° 0 mm 8
Sept. 27 Sunny
Sunny
 39° /28° 0 mm 8
Sept. 28 Sunny
Sunny
 29° /23° 0 mm 7
Sept. 29 Sunny
Sunny
 36° /20° 0 mm 8
Sept. 30 Sunny
Sunny
 36° /20° 0 mm 9
Next
Important Notice
Our weather forecast for Frisco in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Frisco forecast closer to your planned date for the most up-to-date weather information.
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Frisco in September - FAQ

What are the expected maximum and minimum temperatures in Frisco during September?
With daytime temperatures soaring above 35° and not dropping much below 22° at night, September in Frisco is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in Frisco during September?
Moderate rainfall is anticipated in Frisco during September, with a total of 70.6 mm spread over approximately 11 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Frisco during September?
The average wind speed in Frisco during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Frisco

Explore the daily rainfall trends and prepare for Friscos September weather 💧

UV exposure in Frisco during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Frisco?

Get accurate weather forecasts for Frisco, located at latitude 33.151 and longitude -96.824. Stay updated with localized weather information tailored for Frisco.

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