Nampa, Idaho Weather Conditions

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National Weather Service:

Dense Fog Advisory View All Alerts

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Current Conditions

  • 32°
  • Overcast
  • Wind: Calm
  • Humidity: 100%
  • Visibility: 2.0 miles
  • Dew Point: 32°
  • Pressure: 30.42 in. +

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Next 12 Hours

11  pm
2  am
5  am
8  am
11  am
Fog
Fog
Fog
Fog
Fog
Fog
Fog
Fog
Fog
Fog
34°
34°
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30°
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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Partly Cloudy
  • High: 39 °
  • Low: 30 °
  • Partly Cloudy
  • Tuesday
  • Chance of Rain
  • High: 43 °
  • Low: 34 °
  • Chance of Rain
  • Wednesday
  • Mostly Cloudy
  • High: 45 °
  • Low: 32 °
  • Mostly Cloudy
  • Thursday
  • Partly Cloudy
  • High: 46 °
  • Low: 32 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 43 °
  • Low: 28 °
  • Partly Cloudy

Forecast for Nampa, Idaho

Updated: 8:00 PM MST on January 25, 2015

Dense fog advisory in effect from 2 am to 11 am MST Monday...
  • Sunday

    Mostly cloudy. Fog early. High of 43F. Winds less than 5 mph.

  • Sunday Night

    Mostly cloudy. Fog overnight. Low of 30F. Winds less than 5 mph.

  • Monday

    Partly cloudy. Fog early. High of 39F. Winds less than 5 mph.

  • Monday Night

    Partly cloudy. Fog overnight. Low of 30F. Winds less than 5 mph.

  • Tuesday

    Partly cloudy in the morning, then overcast with a chance of rain. Fog early. High of 43F. Winds less than 5 mph. Chance of rain 20%.

  • Tuesday Night

    Overcast with a chance of rain. Low of 34F. Winds less than 5 mph. Chance of rain 20%.

  • Wednesday

    Overcast. High of 45F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 32F. Winds less than 5 mph.

  • Thursday

    Clear. High of 46F. Winds from the SE at 5 to 10 mph shifting to the North in the afternoon.

  • Thursday Night

    Clear. Low of 32F. Winds less than 5 mph.

  • Friday

    Clear. High of 43F. Winds less than 5 mph.

  • Friday Night

    Partly cloudy. Low of 28F. Winds less than 5 mph.

  • Saturday

    Clear. High of 45F. Winds from the ESE at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Low of 30F. Winds from the ESE at 5 to 10 mph.

  • Sunday

    Partly cloudy. High of 45F. Winds less than 5 mph.

  • Sunday Night

    Mostly cloudy. Low of 34F. Winds less than 5 mph.

  • Monday

    Clear. High of 48F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 30F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 50F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Low of 30F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 52F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 32F. Winds less than 5 mph.

  • Thursday

    Clear. High of 50F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Dense Fog Advisory  Statement as of 9:11 PM MST on January 25, 2015


... Dense fog advisory in effect from 2 am to 11 am MST Monday...

The National Weather Service in Boise has issued a dense fog
advisory for the Treasure valley... which is in effect from 2 am
to 11 am MST Monday.

* Visibility... one quarter mile or less.

* Timing... dense fog is expected to develop late tonight and
persist through Monday morning.

* Impacts... reduced visibility will make travel hazardous.

Precautionary/preparedness actions...

A dense fog advisory means visibilities will frequently be
reduced to less than one quarter mile. If driving... slow down...
use your headlights... and leave plenty of distance ahead of you.





 Record Report  Statement as of 2:36 am MST on January 25, 2015


... Record high temperature set at Burns or...

a record high temperature of 56 degrees was set at Burns or
yesterday. This breaks the old record of 53 set in 1975.



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Willow Creek, Nampa, ID

Updated: 11:18 PM MST

Temperature: 32.9 °F Dew Point: 29 °F Humidity: 86% Wind: Calm Pressure: 30.57 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: Willow Creek, Nampa, ID

Updated: 11:08 PM MST

Temperature: 30.7 °F Dew Point: 30 °F Humidity: 97% Wind: Calm Pressure: 30.44 in Hourly Precipitation: - Windchill: 31 °F Graphs

Location: Victory Rd, Nampa, ID

Updated: 11:18 PM MST

Temperature: 29.5 °F Dew Point: 26 °F Humidity: 86% Wind: Calm Pressure: 30.43 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Sherwood Meadows, Nampa, ID

Updated: 11:18 PM MST

Temperature: 28.9 °F Dew Point: 28 °F Humidity: 96% Wind: Calm Pressure: 30.44 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Nampa Model Aviators RC Flying Field, Nampa, ID

Updated: 11:18 PM MST

Temperature: 33.8 °F Dew Point: 32 °F Humidity: 95% Wind: Calm Pressure: 30.57 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: APRSWXNET Nampa ID US, Nampa, ID

Updated: 10:27 PM MST

Temperature: 34 °F Dew Point: 33 °F Humidity: 95% Wind: SSE at 1 mph Pressure: 30.41 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Royal Meadows, Nampa, ID

Updated: 11:07 PM MST

Temperature: 28.6 °F Dew Point: 28 °F Humidity: 97% Wind: Calm Pressure: 30.18 in Hourly Precipitation: - Windchill: 29 °F Graphs

Location: S Nampa, ID, Nampa, ID

Updated: 11:18 PM MST

Temperature: 29.4 °F Dew Point: 27 °F Humidity: 89% Wind: SW at 1.2 mph Pressure: 30.57 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Sunnybrook Farm, Meridian, ID

Updated: 11:07 PM MST

Temperature: 28.0 °F Dew Point: 28 °F Humidity: 99% Wind: Calm Pressure: 30.23 in Hourly Precipitation: - Windchill: 28 °F Graphs

Location: Primrose Subdivision, Meridian, ID

Updated: 11:03 PM MST

Temperature: 30.6 °F Dew Point: 29 °F Humidity: 94% Wind: West at 1.0 mph Pressure: 30.53 in Hourly Precipitation: - Windchill: 31 °F Graphs

Location: Welker Subdivision, Meridian, ID

Updated: 11:18 PM MST

Temperature: 32.2 °F Dew Point: 25 °F Humidity: 81% Wind: Calm Pressure: 30.41 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Rockbridge, Star, ID

Updated: 11:06 PM MST

Temperature: 29.3 °F Dew Point: 29 °F Humidity: 99% Wind: SSW at 2.7 mph Pressure: 30.42 in Hourly Precipitation: - Windchill: 29 °F Graphs

Location: APRSWXNET Meridian ID US, Meridian, ID

Updated: 10:33 PM MST

Temperature: 30 °F Dew Point: 27 °F Humidity: 87% Wind: Calm Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: MesoWest NAMPA ID US AGRIMET, Melba, ID

Updated: 10:00 PM MST

Temperature: 30 °F Dew Point: 30 °F Humidity: 100% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: North Rhodes Avenue, Meridian, ID

Updated: 11:16 PM MST

Temperature: 34.2 °F Dew Point: 28 °F Humidity: 78% Wind: North at - Pressure: 30.46 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Rusty Ridge Ranch, Star, ID

Updated: 8:50 PM MST

Temperature: 31.8 °F Dew Point: 32 °F Humidity: 99% Wind: NW at 1.7 mph Pressure: 30.23 in Hourly Precipitation: - Windchill: 32 °F Graphs

Location: Uppiano Suddivision, Meridian, ID

Updated: 11:15 PM MST

Temperature: 32.7 °F Dew Point: 27 °F Humidity: 85% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: FOXTAIL1, Meridian, ID

Updated: 11:18 PM MST

Temperature: 28.8 °F Dew Point: 28 °F Humidity: 99% Wind: Calm Pressure: 30.59 in Hourly Precipitation: - Windchill: 29 °F Graphs

Location: The Preserve, Eagle, ID

Updated: 11:18 PM MST

Temperature: 30.6 °F Dew Point: 29 °F Humidity: 95% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Rural NNE of, Middleton, ID

Updated: 11:17 PM MST

Temperature: 30.0 °F Dew Point: 28 °F Humidity: 94% Wind: Calm Pressure: 30.51 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: NE Meridian, Meridian, ID

Updated: 11:18 PM MST

Temperature: 27.3 °F Dew Point: 24 °F Humidity: 89% Wind: Calm Pressure: 30.61 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Two Rivers / Banbury, Meridian, ID

Updated: 11:16 PM MST

Temperature: 31.6 °F Dew Point: 29 °F Humidity: 91% Wind: North at - Pressure: 30.48 in Hourly Precipitation: - Windchill: 32 °F Graphs

Location: Castlebury, Eagle, ID

Updated: 11:17 PM MST

Temperature: 30.1 °F Dew Point: 29 °F Humidity: 95% Wind: Calm Pressure: 30.55 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: APRSWXNET Meridian ID US, Boise, ID

Updated: 10:34 PM MST

Temperature: 30 °F Dew Point: 30 °F Humidity: 100% Wind: Calm Pressure: 30.41 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: S Eagle at E Victory, Meridian, ID

Updated: 11:04 PM MST

Temperature: 30.4 °F Dew Point: 30 °F Humidity: 100% Wind: Calm Pressure: 30.40 in Hourly Precipitation: - Windchill: 30 °F Graphs

Location: Rural hilltop, Wilder, ID

Updated: 11:18 PM MST

Temperature: 38.4 °F Dew Point: 38 °F Humidity: 100% Wind: Calm Pressure: 27.75 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Boulder Creek Subdivision, Boise, ID

Updated: 11:09 PM MST

Temperature: 28.2 °F Dew Point: 22 °F Humidity: 78% Wind: Calm Pressure: 30.63 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: Eagle, Eagle, ID

Updated: 11:18 PM MST

Temperature: 28.5 °F Dew Point: 26 °F Humidity: 92% Wind: Calm Pressure: 30.66 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: APRSWXNET Eagle ID US, Eagle, ID

Updated: 10:33 PM MST

Temperature: 29 °F Dew Point: 27 °F Humidity: 91% Wind: Calm Pressure: 30.56 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Boise Idaho 
902 PM MST sun Jan 25 2015 


Discussion...dense fog already seen on webcams and also indicated 
on satellite images across the upper Weiser basin. Expect the 
fog and low stratus to expand in the Treasure valley /especially 
west of Boise/ through Monday morning. A dense fog advisory will 
be issued for the upper Weiser basin for the remainder of tonight 
through Monday morning...and the Treasure valley for late tonight 
through Monday morning. Conditions are expected to improve Monday 
afternoon...although the inversion will remain as high pressure 
aloft continues over the region. 


&& 


Aviation...MVFR stratus and IFR/LIFR fog in the lower Treasure 
valley and upper Weiser basin this evening which is expected to 
expand eastward overnight. Kboi will likely see stratus and fog by 
09z. Expected stratus to fill in across the Long Valley and the 
western Magic Valley early Monday morning. VFR elsewhere. Surface 
winds will be light and variable. Winds aloft at 10 
kft...northwest around 20 kts. 


&& 


Air stagnation...continued inversion conditions through Tuesday 
as a strong high pressure moves across the area. A weak system 
currently near Baja California California will move northward across the area 
Tuesday night into Wednesday. This system may temporarily clean 
the air especially in the Magic Valley...but inversion conditions 
will return as another upper ridge is expected to build over the 
west by the end of the week. 


&& 


Previous discussion... 
short term...tonight through Tuesday...a ridge of high pressure 
is transitioning across the Great Basin through Monday morning. 
Low clouds and fog persist in the lower Treasure valley as 
expected. Expect stratus and patchy fog to expand during the 
night and slowly dissipate during the day in the upper Treasure 
and Magic Valleys while persisting through the period in the lower 
Treasure valley. A weak system currently near Baja California California will 
move northward across the area Tuesday night into Wednesday. 


Long term...Tuesday night through Sunday...widespread inversion 
pattern will return late next week. Inversion will probably not 
break for the Oregon lower Treasure and Baker valleys as a moist 
upper low crosses SW Idaho Tuesday afternoon through Wednesday 
evening. Split flow over the west Thursday will be followed by 
another upper level ridge over the pacnw/Idaho Friday through 
Sunday. Split flow will have weak winds which will allow low layer 
stratus to form or spread. Uncertainty in the strength of the ridge 
will determine if upper troughs in the northwest flow can influence 
northern tier zones but model trend is for a strong enough ridge to 
bring a strong inversion back. The second Baja California low Sunday looks to 
remain in a southern stream storm track. Dry weather with very mild 
mountain highs are expected Thursday through Sunday. Below around 
3500 feet mean sea level /including Boise/ an inversion pattern with slightly 
above normal temperatures is expected Thursday through Sunday. 
Normal high temperatures at Boise get up to 40 degrees by middle 
week. 


&& 


Boi watches/warnings/advisories... 
Idaho...dense fog advisory until 11 am MST Monday idz033. 
Dense fog advisory from 2 am to 11 am MST Monday idz012-014. 
Or...dense fog advisory from 2 am to 11 am MST Monday orz064. 


&& 


$$ 


Weather.Gov/Boise 


Discussion...bw 
aviation.....Js 
air stagnation...ka 
previous short term...ka 
previous long term....vm/wh 






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