Climateby Month

Whitefish, MT weather in August

NOAA 1991-2020 normals and daily records · Whitefish all year

Expect warm weather with some rain in Whitefish in August, with highs near 82°F and lows near 46°F. Rain falls on about 6 days. It is one of the warmest months in Whitefish. Good for outdoor plans.

Normal high
82°F
Normal low
46°F
Wet days
6
0.8 in total
Muggy days
0
dew point 65°F+

How August changes from start to finish

Normal values at the start and end of August
August 1August 31
Normal high86°F77°F
Normal low48°F42°F
Chance of a wet day20%23%
Sunrise / sunset6:12 am / 9:14 pm6:53 am / 8:21 pm
Daylight15.0 h13.5 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).

A typical August day

  1. 6 am49°Fdew point 44°F
  2. 9 am65°Fdew point 47°F
  3. Noon75°Fdew point 45°F
  4. 3 pm79°Fdew point 43°F
  5. 6 pm78°Fdew point 43°F
  6. 9 pm63°Fdew point 46°F

NOAA hourly normals (local standard time) from Kalispell Glacier Airport (8 mi away); average wind 5 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F11 of 31
  • Hot dayshigh 90°F or more6 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow6 of 31
  • Notable rainat least 0.10 in2 of 31
  • Freezing nightslow 32°F or below0 of 31
  • Snow on the groundsnow depth 1 in or more0 of 31

Average days per August, counted from daily records for each year 1991-2020.

Rain in August

Normal precipitation is 0.8 in; a dry August brings about 0.3 in and a wet one about 1.2 in (25th and 75th percentiles). Days with half an inch or more are rare.

How August varies from year to year

  • Warmest August, 1991-20202003: average high 87°F
  • Coolest August1993: average high 75°F
  • Wettest August2004: 2.5 in
  • Driest August2001: 0.06 in
  • Highest reading101°F (August 1, 2015)
  • Lowest reading30°F (August 28, 2000)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

August compared with July and September

JulyAugustSeptember
Normal high82°F82°F70°F
Normal low48°F46°F38°F
Wet days768
Comfortable days111116
Daylight15.6 h14.3 h12.6 h

Highs change by 0°F from July and -12°F into September.

Nearby alternatives in August

How Whitefish ranks in August

  • Normal high285th warmest of 378 cities; 4th of 6 in Montana
  • Wet days127th driest of 378
  • Comfortable days60th most of 341

What to pack for Whitefish in August

  • Layers – afternoons near 82°F but nights near 46°F
  • Sunglasses and sunscreen – about 14.3 hours of daylight and highs near 82°F

Heating and cooling

August has 95 heating degree days and 55 cooling degree days (base 65°F), 2% of the year's total heating and cooling demand.

Questions

How hot is Whitefish in August?

The normal high is 82°F and the normal low is 46°F. From 1991 to 2020 the hottest August reading was 101°F (August 1, 2015).

Does it rain a lot in Whitefish in August?

About 6 days in August have at least 0.01 in of precipitation, and the normal total is 0.8 in. The wettest August in 1991-2020 was in 2004 (2.5 in); the driest was in 2001 (0.06 in).

Is August a good time to visit Whitefish?

August ranks 5th of 12 months on our comfort score for Whitefish (66 out of 100). It has about 11 comfortable days and about 6 days at 90°F or hotter. The best months are May and June.

Where the numbers come from

  • Temperature, rain, snow depth and humidity and wind by hour: Kalispell Glacier Airport (USC00244558), 8.1 mi SSE of the city center, 2,957 ft (78 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Snowfall and frost dates: Whitefish (USC00248902), 1.0 mi WSW of the city center, 3,100 ft (65 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Glacier Park International Airport (727790-24146), 8.1 mi SSE of the city center, 2,963 ft (72 ft lower than the city). Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).