Payette, Idaho Weather Conditions

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Current Conditions

  • 32°
  • Clear
  • Wind: WSW 7 mph
  • Humidity: 85%
  • Visibility: 10.0 miles
  • Dew Point: 28°
  • Pressure: 30.77 in. 0
  • Heat Index: 26

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Next 12 Hours

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10  am
1  pm
Mostly Cloudy
Mostly Cloudy
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Overcast
  • High: 46 °
  • Low: 22 °
  • Overcast
  • Tuesday
  • Overcast
  • High: 39 °
  • Low: 23 °
  • Overcast
  • Wednesday
  • Partly Cloudy
  • High: 45 °
  • Low: 29 °
  • Partly Cloudy
  • Thursday
  • Partly Cloudy
  • High: 48 °
  • Low: 32 °
  • Partly Cloudy
  • Friday
  • Clear
  • High: 51 °
  • Low: 35 °
  • Clear

Forecast for Payette, Idaho

Updated: 9:02 PM MST on February 7, 2016

  • Rest of Tonight

    Increasing clouds. Areas of developing after midnight fog. Lows 25 to 30. Light winds.

  • Monday

    Partly sunny. Areas of fog. Highs 39 to 44. Light winds.

  • Monday Night

    Mostly cloudy. Areas of fog. Lows 27 to 32. Light winds.

  • Tuesday

    Decreasing clouds. Areas of fog in the morning. Highs 33 to 39. Light winds.

  • Tuesday Night

    Mostly cloudy. Patchy fog in the evening. Areas of fog after midnight. Lows 27 to 32. Light winds.

  • Wednesday

    Mostly cloudy. Areas of fog in the morning. Highs 31 to 37.

  • Wednesday Night

    Mostly cloudy. Patchy fog. Lows 29 to 34.

  • Thursday and Thursday Night

    Partly cloudy. Highs 41 to 46. Lows 29 to 35.

  • Friday

    Mostly sunny. Highs 46 to 53.

  • Friday Night

    Mostly cloudy with a 20 percent chance of rain showers. Lows 31 to 36.

  • Saturday

    Partly cloudy with a 30 percent chance of rain showers. Highs 47 to 52.

  • Saturday Night

    Mostly cloudy. Lows 30 to 35.

  • Sunday

    Mostly cloudy with a 20 percent chance of rain showers. Highs 46 to 51.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: NE 25th/Payette Heights Rd., Payette, ID

Updated: 12:46 AM MST

Temperature: 27.2 °F Dew Point: 26 °F Humidity: 95% Wind: Calm Pressure: 30.87 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Sunnyside Dairy (2mi S of Weiser), Weiser, ID

Updated: 12:44 AM MST

Temperature: 27.9 °F Dew Point: 27 °F Humidity: 96% Wind: Calm Pressure: 30.78 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: APRSWXNET, New Plymouth, ID

Updated: 12:25 AM MST

Temperature: 34 °F Dew Point: 31 °F Humidity: 87% Wind: Calm Pressure: 30.70 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Annex, Ontario, OR

Updated: 12:44 AM MST

Temperature: 29.4 °F Dew Point: 28 °F Humidity: 96% Wind: Calm Pressure: 30.79 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Indianhead Rd between Hale and Jenkins Creek Rds, Weiser, ID

Updated: 12:08 AM MST

Temperature: 25.3 °F Dew Point: 25 °F Humidity: 97% Wind: North at 1.1 mph Pressure: 30.58 in Hourly Precipitation: - Windchill: 25 °F Graphs

Location: Weiser flat, Weiser, ID

Updated: 12:40 AM MST

Temperature: 25.5 °F Dew Point: 25 °F Humidity: 97% Wind: Calm Pressure: 30.73 in Hourly Precipitation: - Windchill: 26 °F Graphs

Location: Boise Valley Feeders, Parma, ID

Updated: 12:43 AM MST

Temperature: 35.0 °F Dew Point: 32 °F Humidity: 89% Wind: Calm Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Monroe Creek Valley, Weiser, ID

Updated: 12:43 AM MST

Temperature: 34.3 °F Dew Point: 27 °F Humidity: 73% Wind: West at 2.7 mph Pressure: 30.61 in Hourly Precipitation: - Windchill: 34 °F Graphs

Location: Mann Creek, Weiser, ID

Updated: 12:38 AM MST

Temperature: 30.2 °F Dew Point: 27 °F Humidity: 89% Wind: Calm Pressure: 30.59 in Hourly Precipitation: - Windchill: 30 °F Graphs

Location: Owyhee Junction, Nyssa, OR

Updated: 12:37 AM MST

Temperature: 33.2 °F Dew Point: 30 °F Humidity: 89% Wind: WNW at 5.0 mph Pressure: 30.73 in Hourly Precipitation: - Windchill: 28 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion

Area forecast discussion 
National Weather Service Boise Idaho 
853 PM MST sun Feb 7 2016 

Discussion...with building upper ridge axis to the west...seeing 
a continuing feed of high clouds in northerly flow. Similar to 
last night this is inhibiting the onset of fog this evening. Areas 
of fog or a low stratus will form across lower valleys /fog has 
already set up in the Long Valley/ by Monday morning as near- 
surface layer is fairly moist /dewpoints in the low 30s in the 
Snake River Plain/ and winds are light. Have made a few updates to 
timing of fog overnight and minimum temperatures in the Weiser 
Valley and west-central mountains 


Aviation...mainly VFR. Surface based temperature inversion 
developing tonight will persist at least through Wednesday night 
under warm high pressure aloft. Expect areas of IFR/LIFR fog and low 
stratus throughout the Snake River Valley tonight through early 
Monday afternoon...with patchy valley fog in the kbno..kbke..and 
kmyl areas. Daytime heating should induce enough mixing to dissipate 
the fog and stratus by about 21z Monday...but it will redevelop 
Monday evening. Surface winds...variable 10 kts or less. Winds 
aloft...northwest 10-20kts through 10k feet mean sea level. 


Air stagnation...inversion will strengthen over the next 48 
hours...peaking on Tuesday. Lower valleys will see afternoon 
mixing heights drop to around 1500 feet above ground level by Tuesday afternoon. 
Easterly winds in the mixed layer will increase on Tuesday... 
especially over the upper Treasure and western magic. Inversion 
will hold into next weekend /if not beyond/ though with dry air 
aloft and easterly winds confidence on fog/stratus evolution is 


Previous discussion... 
short term...tonight through Tuesday... 
large upper ridge building over the area today and model forecast 
soundings showing the middle levels of the atmosphere continuing to 
warm overnight. So strong inversion to be in place starting 
tonight. The biggest question is the areal extent of the fog and 
when does it begin to dissipate. Current thinking is that given 
that the low stratus and fog is just now dissipating from the 
Magic Valley westward to Mountain Home...this may be the precursor 
to whats to come. As the sun sets...look for the fog to spread 
back into the lower Treasure valley along with the Burns/Baker and 
McCall regions. Somewhat more confident on extent of the fog than 
than the timing of when it should snow/moisture on 
the ground would may help limit the hours of fog across the area. 
Any low elevation surface moisture would have to advect from 
eastern Idaho in the light easterly winds expected or drainage out 
of the mountains into the lower valleys...that would keep 
fog/stratus in the picture. This makes the forecast temperatures 
difficult as if fog/clouds dont break temperatures could struggle 
to warm through the day. 

Even warmer air aloft pushes into the region Tuesday only 
increasing the strength of the expecting similar 
conditions Tuesday morning with extensive fog soon after 
sunset...lasting into the at least middle/late morning. 

Long term...Tuesday night through Sunday... 
high amplitude upper level ridge will remain over the region 
through the end of the week. Can expect valley inversions under 
the ridge along with fog and low stratus. Still some uncertainty 
as to how widespread the valley stratus and fog will get under the 
inversion so forecast valley temperatures has not been easy. Still 
trending that valley temperatures will be in the 30s and maybe the 
low 4os...but if there is not as much moisture trapped under the 
inversion as we are thinking...valley highs could be much warmer. 
High temperatures above the inversion will be in the 40s and low 

Friday night through Sunday...a low off the British Columbia coast 
and associated frontal system will make its way across our area 
through this period. Increased probability of precipitation Saturday am with best chances 
Saturday afternoon especially for the west central mountains. 
Differences in models after this leads to low confidence for timing 
and location of precipitation. Temperatures will continue to be 
above normal through the period. 


Boi watches/warnings/advisories... 




air stagnation...dg 
previous short term...CR 
previous long term....ja/jc 

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