easeweather.com
San Juan County (Silverton)
Akron (OH)Albuquerque (NM)Alexandria (VA)Anaheim (CA)Anchorage (AK)Arlington (VA)Atlanta (GA)Atlantic City (NJ)Austin (TX)Baltimore (MD)Baton Rouge (LA)Birmingham (AL)Boston (MA)Brooklyn (NY)Buffalo (NY)Cape Coral (FL)Charlotte (NC)Chattanooga (TN)Chicago (IL)Cincinnati (OH)Cleveland (OH)Colorado Springs (CO)Columbus (OH)Corpus Christi (TX)Dallas (TX)Dayton (OH)Denver (CO)Des Moines (IA)Detroit (MI)El Paso (TX)Fairbanks (AK)Fayetteville (NC)Fort Lauderdale (FL)Fort Wayne (IN)Fort Worth (TX)Gatlinburg (TN)Grand Rapids (MI)Harrisburg (PA)Honolulu (HI)Houston (TX)Huntsville (AL)Indianapolis (IN)Jackson (MS)Jacksonville (FL)Juneau (AK)Kansas City (MO)Ketchikan (AK)Key West (FL)Knoxville (TN)Las Vegas (NV)Lexington (KY)Lincoln (NE)Little Rock (AR)Los Angeles (CA)Louisville (KY)Madison (WI)Manhattan (NY)Memphis (TN)Miami (FL)Milwaukee (WI)Minneapolis (MN)Mobile (AL)Montgomery (AL)Nashville (TN)New Orleans (LA)New York City (NY)Newark (NJ)Oklahoma City (OK)Omaha (NE)Orlando (FL)Philadelphia (PA)Phoenix (AZ)Pittsburgh (PA)Portland (OR)Richmond (VA)Riverside (CA)Sacramento (CA)Salt Lake City (UT)San Antonio (TX)San Diego (CA)San Francisco (CA)San Jose (CA)Savannah (GA)Seattle (WA)Silverton (CO)Sitka (AK)Skagway (AK)Springfield (MO)St. Louis (MO)St. Petersburg (FL)Tallahassee (FL)Tampa (FL)Toledo (OH)Traverse City (MI)Tulsa (OK)Tyler (TX)Vancouver (WA)Virginia Beach (VA)WashingtonWichita (KS)Winston-Salem (NC) More Locations
United States weather

Weather in San Juan County, Colorado for August 2026

Your guide to San Juan County weather in August - trends and predictions

    Temperatures

  • In general, the average temperature in San Juan County at the beginning of August is 18.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 11.7 °F by the end of August.

    • Rain 🌧️

  • San Juan County experiences moderate rainfall in August, with an average of 8 rainy days and a total precipitation of 111.4 mm.

    • More

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

Average dry days
23
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/9°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
50 %
Avg humidity

San Juan County Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Thundery outbreaks possible
16°
2
Partly cloudy
18°
3
Sunny
18°
4
Cloudy
18°
5
Partly cloudy
18°
6
Sunny
19°
7
Partly cloudy
20°
8
Cloudy
17°
9
Partly cloudy
17°
10
Overcast
14°
11
Partly cloudy
16°
12
Overcast
15°
13
Overcast
17°
14
Thundery outbreaks possible
17°
15
Light rain shower
14°
16
Light rain shower
14°
17
Cloudy
16°
18
Cloudy
17°
19
Thundery outbreaks possible
18°
20
Thundery outbreaks possible
19°
21
Cloudy
19°
22
Thundery outbreaks possible
19°
23
Light rain shower
17°
24
Moderate or heavy rain shower
13°
25
Patchy light rain with thunder
12°
26
Patchy light rain with thunder
11°
27
Moderate or heavy rain with thunder
11°
28
Cloudy
12°
29
Moderate or heavy rain shower
11°
30
Partly cloudy
13°
31
Thundery outbreaks possible
12°

Temperatures trend during August in San Juan County

See the weather trend as well as the moving average line

August weather in San Juan County day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Thundery outbreaks possible
Thundery outbreaks possible
 16° /8° 0 mm 4
Aug. 2 Partly cloudy
Partly cloudy
 18° /11° 0 mm 5
Aug. 3 Sunny
Sunny
 18° /10° 0 mm 5
Aug. 4 Cloudy
Cloudy
 18° /10° 0 mm 4
Aug. 5 Partly cloudy
Partly cloudy
 18° /11° 0 mm 5
Aug. 6 Sunny
Sunny
 19° /11° 0 mm 5
Aug. 7 Partly cloudy
Partly cloudy
 20° /12° 0 mm 6
Aug. 8 Cloudy
Cloudy
 17° /12° 0 mm 4
Aug. 9 Partly cloudy
Partly cloudy
 17° /11° 0 mm 5
Aug. 10 Overcast
Overcast
 14° /12° 0 mm 3
Aug. 11 Partly cloudy
Partly cloudy
 16° /8° 0 mm 5
Aug. 12 Overcast
Overcast
 15° /5° 0 mm 4
Aug. 13 Overcast
Overcast
 17° /7° 0 mm 4
Aug. 14 Thundery outbreaks possible
Thundery outbreaks possible
 17° /9° 0 mm 4
Aug. 15 Light rain shower
Light rain shower
 14° /9° 4.8 mm 3
Aug. 16 Light rain shower
Light rain shower
 14° /8° 15.2 mm 3
Aug. 17 Cloudy
Cloudy
 16° /8° 0 mm 4
Aug. 18 Cloudy
Cloudy
 17° /9° 0 mm 4
Aug. 19 Thundery outbreaks possible
Thundery outbreaks possible
 18° /8° 0 mm 4
Aug. 20 Thundery outbreaks possible
Thundery outbreaks possible
 19° /10° 0 mm 4
Aug. 21 Cloudy
Cloudy
 19° /9° 0 mm 4
Aug. 22 Thundery outbreaks possible
Thundery outbreaks possible
 19° /12° 0 mm 4
Aug. 23 Light rain shower
Light rain shower
 17° /8° 2.3 mm 4
Aug. 24 Moderate or heavy rain shower
Moderate or heavy rain shower
 13° /8° 34.2 mm 3
Aug. 25 Patchy light rain with thunder
Patchy light rain with thunder
 12° /9° 25.7 mm 3
Aug. 26 Patchy light rain with thunder
Patchy light rain with thunder
 11° /8° 10.1 mm 3
Aug. 27 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 11° /7° 11.1 mm 3
Aug. 28 Cloudy
Cloudy
 12° /7° 0 mm 3
Aug. 29 Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /5° 8 mm 3
Aug. 30 Partly cloudy
Partly cloudy
 13° /3° 0 mm 4
Aug. 31 Thundery outbreaks possible
Thundery outbreaks possible
 12° /7° 0 mm 3
Next
Important Notice
Our weather forecast for San Juan County in August 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 San Juan County forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

San Juan County in August - FAQ

What are the expected maximum and minimum temperatures in San Juan County during August?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in San Juan County during August?
Significant rainfall exceeding 111.4 mm is expected in San Juan County during August, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San Juan County during August?
The average wind speed in San Juan County during August is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in San Juan County

Explore the daily rainfall trends and prepare for San Juan Countys August weather 💧
Top locations in San Juan County
Select a location for an accurate weather forecast
Oljato-Monument ValleySilverton
More Locations

Quick links

More San Juan County weather pages
You are here
Location coordinates Where is San Juan County?

Get accurate weather forecasts for San Juan County, located at latitude 37.812 and longitude -107.665. Stay updated with localized weather information tailored for San Juan County.

Found a mistake?
We appreciate your attention to details. Tell us here.