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United States weather

Weather in Lake County, Colorado for September 2026

Your guide to Lake County weather in September - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Lake County during September is quite rare, with fewer than 2 snowy days on average.

    • Temperatures

  • In general, the average temperature in Lake County at the beginning of September is 17.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.6 °F by the end of September.

    • Rain 🌧️

  • Lake County experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 197.7 mm.

    • More

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

Average dry days
20
Dry days
Average rainy days
9
Rainy days
Average snowy days
1
Snow days
Average temperatures
14°/4°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
59 %
Avg humidity

Lake County Weather September

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

Temperatures trend during September in Lake County

See the weather trend as well as the moving average line

September weather in Lake County day by day

Click on a date for more information
August October
Date Weather Temperatures Rain Snow More
Sept. 1 Thundery outbreaks possible
Thundery outbreaks possible
 19° /4° 0 mm 0 cm
Sept. 2 Partly cloudy
Partly cloudy
 18° /6° 0 mm 0 cm
Sept. 3 Sunny
Sunny
 18° /7° 0 mm 0 cm
Sept. 4 Sunny
Sunny
 19° /8° 0 mm 0 cm
Sept. 5 Light rain shower
Light rain shower
 15° /8° 4 mm 0 cm
Sept. 6 Patchy light rain with thunder
Patchy light rain with thunder
 16° /5° 10.2 mm 0 cm
Sept. 7 Sunny
Sunny
 16° /6° 0 mm 0 cm
Sept. 8 Sunny
Sunny
 16° /4° 0 mm 0 cm
Sept. 9 Thundery outbreaks possible
Thundery outbreaks possible
 16° /7° 0 mm 0 cm
Sept. 10 Thundery outbreaks possible
Thundery outbreaks possible
 17° /6° 14.5 mm 0 cm
Sept. 11 Light rain shower
Light rain shower
 15° /7° 28.7 mm 0 cm
Sept. 12 Light rain shower
Light rain shower
 13° /6° 20.1 mm 0 cm
Sept. 13 Moderate or heavy rain shower
Moderate or heavy rain shower
 10° /2° 50.8 mm 0 cm
Sept. 14 Moderate or heavy snow showers
Moderate or heavy snow showers
 12° /2° 1.3 mm 0.9 cm
Sept. 15 Partly cloudy
Partly cloudy
 15° /2° 0 mm 0 cm
Sept. 16 Thundery outbreaks possible
Thundery outbreaks possible
 13° /5° 0 mm 0 cm
Sept. 17 Thundery outbreaks possible
Thundery outbreaks possible
 13° /3° 0 mm 0 cm
Sept. 18 Thundery outbreaks possible
Thundery outbreaks possible
 12° /2° 0 mm 0 cm
Sept. 19 Overcast
Overcast
 15° /4° 0 mm 0 cm
Sept. 20 Thundery outbreaks possible
Thundery outbreaks possible
 14° /6° 0 mm 0 cm
Sept. 21 Thundery outbreaks possible
Thundery outbreaks possible
 14° /5° 0 mm 0 cm
Sept. 22 Patchy light rain with thunder
Patchy light rain with thunder
 13° /3° 1 mm 0 cm
Sept. 23 Thundery outbreaks possible
Thundery outbreaks possible
 8° /1° 0 mm 0 cm
Sept. 24 Mist
Mist
 12° /0° 0 mm 0 cm
Sept. 25 Sunny
Sunny
 16° /4° 0 mm 0 cm
Sept. 26 Thundery outbreaks possible
Thundery outbreaks possible
 14° /4° 0 mm 0 cm
Sept. 27 Cloudy
Cloudy
 12° /3° 0 mm 0 cm
Sept. 28 Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /3° 22.4 mm 0 cm
Sept. 29 Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /5° 44.7 mm 0 cm
Sept. 30 Thundery outbreaks possible
Thundery outbreaks possible
 12° /4° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Lake County 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 Lake County forecast closer to your planned date for the most up-to-date weather information.
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Lake County in September - FAQ

What are the expected maximum and minimum temperatures in Lake County during September?
Prepare for cooler days with highs just around 14° and colder nights, dipping below 4°.
How much rainfall should be expected in Lake County during September?
Significant rainfall exceeding 197.7 mm is expected in Lake County during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Lake County in September 2026?
Lake County typically sees 0.9 cm of snowfall during September.
What are the typical wind conditions in Lake County during September?
The average wind speed in Lake County during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

Lake County snow forecast September 2026

Track daily snowfall levels and discover Lake County’s snowy potential this September ❄️

September rainfall patterns in Lake County

Explore the daily rainfall trends and prepare for Lake Countys September weather 💧
Top locations in Lake County
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Leadville
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Location coordinates Where is Lake County?

Get accurate weather forecasts for Lake County, located at latitude 39.251 and longitude -106.293. Stay updated with localized weather information tailored for Lake County.

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