Mountain Home, Idaho Weather Conditions

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Current Conditions

  • 37°
  • Overcast
  • Wind: ESE 16 mph
  • Humidity: 100%
  • Visibility: 10.0 miles
  • Dew Point: 37°
  • Pressure: 30.79 in. +
  • Heat Index: 28

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Next 12 Hours

2  pm
5  pm
8  pm
11  pm
2  am
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Overcast
  • High: 40 °
  • Low: 23 °
  • Overcast
  • Tuesday
  • Partly Cloudy
  • High: 44 °
  • Low: 24 °
  • Partly Cloudy
  • Wednesday
  • Clear
  • High: 50 °
  • Low: 30 °
  • Clear
  • Thursday
  • Clear
  • High: 53 °
  • Low: 32 °
  • Clear
  • Friday
  • Clear
  • High: 56 °
  • Low: 34 °
  • Clear

Forecast for Mountain Home, Idaho

Updated: 11:28 am MST on February 8, 2016

  • Rest of Today

    Partly cloudy. Highs 38 to 47. Southeast winds up to 10 mph.

  • Tonight

    Mostly clear. Lows 27 to 32. East winds 10 to 15 mph.

  • Tuesday

    Sunny. Highs 44 to 49. Breezy. Southeast winds 10 to 20 mph.

  • Tuesday Night

    Mostly cloudy. Patchy fog. Lows 27 to 32. Southeast winds around 10 mph.

  • Wednesday

    Decreasing clouds. Patchy fog in the morning. Highs 39 to 44. Southeast winds 10 to 15 mph.

  • Wednesday Night through Thursday Night

    Partly cloudy. Lows 29 to 35. Highs 39 to 48.

  • Friday

    Mostly sunny. Highs 50 to 55.

  • Friday Night

    Mostly cloudy. Lows 31 to 36.

  • Saturday

    Partly cloudy with a 20 percent chance of rain showers. Highs 48 to 53.

  • Saturday Night and Sunday

    Mostly cloudy. Lows 29 to 34. Highs 46 to 53.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: NonFedAWOS, Mountain Home, ID

Updated: 1:15 PM MST

Temperature: 37 °F Dew Point: 30 °F Humidity: 75% Wind: ESE at 13 mph Pressure: 30.60 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Reverend's Wx, Glenns Ferry, ID

Updated: 1:48 PM MST

Temperature: 42.8 °F Dew Point: 32 °F Humidity: 65% Wind: NE at 12.1 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion

Area forecast discussion 
National Weather Service Boise Idaho 
923 am MST Monday Feb 8 2016 

satellite...webcams and surface observation showing low clouds fog extending 
from eastern Idaho through Twin Falls towards Glenns Ferry and 
potentially into the Camas Prairie. This should linger through 
noon then start to diminish. Forecast soundings for the Boise area 
different than yesterday in that the lower airmass is not 
saturated like it was indicating based on that and 
full sun this morning...dont expect it to move into the upper 
Treasure Valley. Ridge continue to amplify and warmer air still 
expected to move in around 700mb keep inversion in place. Current 
forecast has this no changes expected. Outside of the 
St/fog...temperatures remaining above normal. 


mainly VFR. Surface based temperature inversion will 
persist through at least Wednesday night due to high pressure aloft 
over the intermountain west. For the next few days expect areas of 
IFR/LIFR fog and low stratus in the Snake River Valley during the 
night and through early afternoon...with patchy valley fog in the 
kbno...kbke and kmyl areas. Daytime heating will provide enough 
mixing to dissipate the fog and stratus by 21z...but will redevelop 
again in the evening. Surface winds variable 10 kts or less. Winds 
aloft northwest 10-20 knots up through 10k feet mean sea level. 


Air stagnation... 
inversion to continue to stregthen at least through midweek with 
warming temperatures at 700mb. Transport winds remaining light 
easterly at the surface at under 10 miles per hour then shifting light northerly 
5-10kft. Mixing heights expected around 1000-1500 feet through Tuesday. 


Previous discussion... 
short term...upper ridge still building...and strengthening the 
inversion. Several weather differences from last night at 09z. An area 
of fog/stratus has formed in the Magic Valley and slowly expanding 
West. Fairfield/Idaho is much colder than last night...near zero this 
morning vs middle 20s last night when winds were near 15 miles per hour. Winds 
have become NE at Jerome/Idaho draining from the cold Camas Prairie. 
With MOS guidance continuing to forecast NE wind we can also expect 
a continuation of cold temperatures in the Camas Prairie through Tuesday. 
As for the fog/stratus...we see that NAM and nambc are the only 
models that keep maximum temperatures down throughout the snake basin today and 
Tuesday. That suggests cold foggy air will spread over nearly all of 
the lower snake basin. But those two models also show Idaho City 
colder than the upper Treasure valley today which is probably 
incorrect. No other models do this. Yesterday Idaho City had a 
high of 52 vs only upper 40s in the Treasure valley...and similar 
temperatures are expected today. No precipitation through Tuesday. Light east winds 
today and Tuesday...except moderate NE near Jerome/ID. 

Long term...Tuesday night through Monday...inversion will remain in 
place through Friday under a high amplitude upper level ridge. Did 
adjust temperatures a bit higher especially on Wednesday as model 
sounding are showing the stratus deck breaking up. Increasing east- 
southeasterly flow across the region on Thursday/Friday ahead of the 
next upper level trough off the coast will also limit fog/stratus 
coverage. Temperatures will reach the lower 40s Wednesday through 
Friday except in the lower Treasure Valley. High temperatures above 
the inversion will be in the 40s and lower 50s. The upper trough 
moves inland Friday night/Saturday but weakens significantly by the 
time it reaches the intermountain west. 00z GFS doesn/T even have the 
trough making it that far inland. 00z European model (ecmwf) does bring in the though 
though but with very little precipitation. The upper ridge rebuilds 
over the western Continental U.S. Beginning Sunday which looks to last through 
the middle of next week. Temperatures will continue to be above 
normal Friday through Monday. 


Boi watches/warnings/advisories... 




air stagnation...CR 
previous short 
previous long term....jds 

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