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Past Weather in Yellowstone National Park, Wyoming, USA — September 2018

Currently: 43 °F. Quite cool. (Weather station: Yellowstone Lake, USA). See more current weather

September 2018 Weather in Yellowstone National Park — Graph

°F

High & Low Weather Summary for September 2018

 TemperatureHumidityPressure
High73 °F (Sep 5, 3:56 pm)97% (Sep 8, 7:56 am)30.40 "Hg (Sep 8, 7:56 am)
Low20 °F (Sep 26, 5:56 am)11% (Sep 17, 2:56 pm)29.80 "Hg (Sep 20, 3:56 am)
Average46 °F54%30.06 "Hg
* Reported Sep 1 12:56 am — Sep 30 11:56 pm, Yellowstone National Park. Weather by CustomWeather, © 2021

Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records

Yellowstone National Park Weather History for September 1, 2018

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 ConditionsComfort  
Time TempWeatherWind HumidityBarometerVisibility
12:56 am
Sat, Sep 1
35 °FChilly.3 mph85%30.06 "HgN/A
1:56 am34 °FChilly.No wind88%30.07 "HgN/A
2:56 am32 °FChilly.3 mph92%30.06 "HgN/A
3:56 am32 °FChilly.No wind88%30.05 "HgN/A
4:56 am31 °FChilly.3 mph92%30.05 "HgN/A
5:56 am30 °FChilly.3 mph96%30.05 "HgN/A
6:56 am30 °FChilly.No wind92%30.06 "HgN/A
7:56 am34 °FChilly.No wind92%30.09 "HgN/A
9:56 am53 °FCool.5 mph48%30.05 "HgN/A
10:56 am57 °FRefreshingly cool.No wind44%30.03 "HgN/A
11:56 am61 °FRefreshingly cool.12 mph30%30.01 "HgN/A
12:56 pm61 °FRefreshingly cool.7 mph26%30.01 "HgN/A
1:56 pm63 °FMild.6 mph27%30.00 "HgN/A
2:56 pm63 °FMild.8 mph25%30.01 "HgN/A
3:56 pm64 °FMild.N/A24%30.01 "HgN/A
4:56 pm62 °FRefreshingly cool.7 mph20%30.02 "HgN/A
5:56 pm62 °FRefreshingly cool.3 mph20%30.03 "HgN/A
6:56 pm59 °FRefreshingly cool.No wind21%30.04 "HgN/A
7:56 pm48 °FCool.No wind52%30.09 "HgN/A
8:56 pm42 °FQuite cool.No wind62%30.09 "HgN/A
9:56 pm39 °FChilly.No wind67%30.08 "HgN/A
10:56 pm38 °FChilly.No wind70%30.06 "HgN/A
11:56 pm36 °FChilly.No wind75%30.07 "HgN/A
Weather by CustomWeather, © 2021

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