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Weather in Matanuska-Susitna Borough, Alaska for September 2025

Your guide to Matanuska-Susitna Borough weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Matanuska-Susitna Borough at the beginning of September is 13 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 9.4 °F by the end of September.

    • Rain 🌧️

  • Matanuska-Susitna Borough experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 169.1 mm.

    • More

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Average dry days
6
Dry days
Average rainy days
24
Rainy days
Average snowy days
0
Snow days
Average temperatures
11°/5°
Temperatures
Average wind speed
9 km/h
Avg max wind
Average humidity
84 %
Avg humidity

Matanuska-Susitna Borough Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Moderate rain at times
11°
2
Patchy rain possible
14°
3
Patchy rain possible
14°
4
Patchy rain possible
14°
5
Patchy rain possible
14°
6
Patchy rain possible
12°
7
Heavy rain at times
12°
8
Moderate rain at times
10°
9
Heavy rain at times
11°
10
Heavy rain at times
11°
11
Moderate or heavy rain shower
8°
12
Moderate rain at times
10°
13
Overcast
15°
14
Moderate or heavy rain shower
10°
15
Moderate or heavy rain shower
9°
16
Moderate rain at times
9°
17
Patchy rain possible
8°
18
Moderate rain at times
9°
19
Moderate or heavy rain shower
9°
20
Patchy rain possible
10°
21
Partly cloudy
10°
22
Overcast
10°
23
Cloudy
10°
24
Patchy rain possible
11°
25
Heavy rain at times
8°
26
Moderate or heavy rain shower
9°
27
Moderate rain at times
8°
28
Cloudy
10°
29
Partly cloudy
9°
30
Overcast
11°

Temperatures trend during September in Matanuska-Susitna Borough

See the weather trend as well as the moving average line

September weather in Matanuska-Susitna Borough day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Moderate rain at times
Moderate rain at times
 11° /8° 5.7 mm 3
Sept. 2 Patchy rain possible
Patchy rain possible
 14° /7° 0.7 mm 3
Sept. 3 Patchy rain possible
Patchy rain possible
 14° /6° 0.8 mm 3
Sept. 4 Patchy rain possible
Patchy rain possible
 14° /7° 1 mm 3
Sept. 5 Patchy rain possible
Patchy rain possible
 14° /7° 1.2 mm 3
Sept. 6 Patchy rain possible
Patchy rain possible
 12° /7° 4.1 mm 3
Sept. 7 Heavy rain at times
Heavy rain at times
 12° /8° 4.4 mm 3
Sept. 8 Moderate rain at times
Moderate rain at times
 10° /8° 5.4 mm 3
Sept. 9 Heavy rain at times
Heavy rain at times
 11° /7° 7.5 mm 3
Sept. 10 Heavy rain at times
Heavy rain at times
 11° /8° 5.4 mm 3
Sept. 11 Moderate or heavy rain shower
Moderate or heavy rain shower
 8° /7° 11.4 mm 2
Sept. 12 Moderate rain at times
Moderate rain at times
 10° /6° 4.8 mm 3
Sept. 13 Overcast
Overcast
 15° /6° 0.3 mm 4
Sept. 14 Moderate or heavy rain shower
Moderate or heavy rain shower
 10° /5° 14.4 mm 3
Sept. 15 Moderate or heavy rain shower
Moderate or heavy rain shower
 9° /6° 61 mm 2
Sept. 16 Moderate rain at times
Moderate rain at times
 9° /6° 3.5 mm 2
Sept. 17 Patchy rain possible
Patchy rain possible
 8° /4° 5.3 mm 2
Sept. 18 Moderate rain at times
Moderate rain at times
 9° /5° 8.6 mm 2
Sept. 19 Moderate or heavy rain shower
Moderate or heavy rain shower
 9° /4° 5.9 mm 2
Sept. 20 Patchy rain possible
Patchy rain possible
 10° /2° 0.9 mm 3
Sept. 21 Partly cloudy
Partly cloudy
 10° /1° 0 mm 4
Sept. 22 Overcast
Overcast
 10° /0° 0 mm 3
Sept. 23 Cloudy
Cloudy
 10° /4° 0 mm 2
Sept. 24 Patchy rain possible
Patchy rain possible
 11° /3° 1.4 mm 3
Sept. 25 Heavy rain at times
Heavy rain at times
 8° /5° 8 mm 2
Sept. 26 Moderate or heavy rain shower
Moderate or heavy rain shower
 9° /4° 4.3 mm 2
Sept. 27 Moderate rain at times
Moderate rain at times
 8° /3° 3 mm 2
Sept. 28 Cloudy
Cloudy
 10° /2° 0.1 mm 3
Sept. 29 Partly cloudy
Partly cloudy
 9° /1° 0 mm 3
Sept. 30 Overcast
Overcast
 11° /2° 0 mm 3
Next
Important Notice
Our weather forecast for Matanuska-Susitna Borough 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 Matanuska-Susitna Borough forecast closer to your planned date for the most up-to-date weather information.
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Matanuska-Susitna Borough in September - FAQ

What are the expected maximum and minimum temperatures in Matanuska-Susitna Borough during September?
During September, expect a variety of temperatures with highs around 11° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Matanuska-Susitna Borough during September?
Significant rainfall exceeding 169.1 mm is expected in Matanuska-Susitna Borough during September, occurring over more than 24 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Matanuska-Susitna Borough during September?
The average wind speed in Matanuska-Susitna Borough during September is 9 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Matanuska-Susitna Borough

Explore the daily rainfall trends and prepare for Matanuska-Susitna Boroughs September weather 💧
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Talkeetna
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Location coordinates Where is Matanuska-Susitna Borough?

Get accurate weather forecasts for Matanuska-Susitna Borough, located at latitude 62.324 and longitude -150.109. Stay updated with localized weather information tailored for Matanuska-Susitna Borough.

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