Area Conditions for Boise, ID
 
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Temperature: 95 oF
Feels Like: 95 oF
Humidity: 13%
Barometer: 29.8
Dew Point: 37 oF
Wind Dir.: NW
Wind Speed: 8 mph
Sunrise: 6:54
Sunset: 8:42
Observation: Sunny
Radar
As reported at ID BOISE WEST AIRFIELD (155001), ID at 5:00 PM

5-day Forecast for Boise, ID
Date Wed
8/19		 Thu
8/20		 Fri
8/21		 Sat
8/22		 Sun
8/23
Weather Condition Clear Clear Clear Mostly Cloudy Clear
Weather Clear Clear Clear Mostly Cloudy Clear
Temperature (°F)
Low/High		 63/97 66/99 69/100 72/94 63/89
Feels Like (°F)
Low/High		 63/97 66/99 69/100 72/94 63/89
Dew Point (°F) 38 40 43 48 46
Humidity (%) 13 18 19 28 30
Wind Speed (mph) 7 6 5 6 8
Precipitation
Chance (%)		 - - - - -
Precipitation
Amount (inches)
S=Snow, L=Liquid		 None None None None None
Evapo-
transpiration
(inches/day)		 0.34 0.3 0.27 0.25 0.3

County Forecast for Boise , ID
 
200400-
Upper Treasure Valley-
230 PM MDT Wed Aug 19 2026

...HEAT ADVISORY IN EFFECT FROM NOON THURSDAY TO 9 PM MDT
FRIDAY...

Tonight   Mostly clear. Lows 57 to 66. Northwest winds up to 10 mph this evening, shifting to east after midnight.
Thursday   Sunny. Highs 98 to 104. East winds up to 10 mph in the morning, shifting to northwest in the afternoon.
Thursday night   Mostly cloudy. Lows 62 to 69. Northwest winds 10 to 15 mph.
Friday   Mostly sunny. Highs 98 to 104. East winds up to 10 mph.
Friday night   Mostly cloudy. Lows 66 to 72. Northwest winds up to 10 mph in the evening, shifting to southeast after midnight. Gusts to 20 mph.
Saturday   Partly sunny. Highs 94 to 99.
Saturday night   Partly cloudy. A slight chance of showers in the evening. Chance of rain 20 percent. Lows 60 to 65.
Sunday   Sunny. Highs 87 to 92.
Sunday night   Increasing clouds. Lows 56 to 61.
Monday   Partly cloudy. A slight chance of showers in the afternoon. Chance of rain 20 percent. Highs 90 to 95.
Monday night through wednesday   Partly cloudy. Lows 59 to 65. Highs 90 to 97. && TEMPERATURE Boise 66 99 69 100 Mountain Home 60 103 64 103

DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Bio
Front Moving Into Tennessee Valley Thursday, Next System Enters Northern Plains

» More DTN Weather Commentary
Posted at 11:54AM Wed Aug 19, 2026 CDT
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