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Now · 9:02 AM

Nampa Weather & Hourly Forecast

United States · Idaho · 83687

Sunny
55°F
Sunny
Feels like: 52°F
💧 Humidity 57% 🌡 Pressure 30.15 inHg 💨 Wind 3 mph 👁 Visibility 24.3 mi Clouds 9% ☀️ UV index 0.5 · Low 🌅 Sunrise 🌇 Sunset

Hourly Forecast for Nampa

Today
Sunny · 10:00 AM Sunny
59° 💧 None 💨 4 mph H 50%30.15 inHg
Sunny · 1:00 PM Sunny
66° 💧 None 💨 5 mph H 36%30.09 inHg
Sunny · 4:00 PM Sunny
70° 💧 None 💨 5 mph H 27%30.03 inHg
Sunny · 7:00 PM Sunny
69° 💧 None 💨 6 mph H 27%29.97 inHg
Clear night · 10:00 PM Clear night
61° 💧 None 💨 2 mph H 42%30.00 inHg
Tomorrow
Clear night · 1:00 AM Clear night
57° 💧 None 💨 0 mph H 51%30.00 inHg
Clear night · 4:00 AM Clear night
52° 💧 None 💨 2 mph H 65%29.97 inHg
Clear night · 7:00 AM Clear night
50° 💧 None 💨 6 mph H 62%29.97 inHg
Sunny · 10:00 AM Sunny
61° 💧 None 💨 5 mph H 39%30.00 inHg
Sunny · 1:00 PM Sunny
73° 💧 None 💨 5 mph H 22%29.91 inHg
Overcast · 4:00 PM Overcast
78° 💧 None 💨 2 mph H 16%29.83 inHg
Mostly sunny · 7:00 PM Mostly sunny
75° 💧 None 💨 6 mph H 17%29.77 inHg
Mostly clear night · 10:00 PM Mostly clear night
66° 💧 None 💨 5 mph H 27%29.80 inHg
Wednesday
Mostly cloudy night · 1:00 AM Mostly cloudy night
60° 💧 None 💨 4 mph H 36%29.83 inHg
Mostly cloudy night · 4:00 AM Mostly cloudy night
55° 💧 None 💨 2 mph H 53%29.85 inHg
Partly cloudy night · 7:00 AM Partly cloudy night
53° 💧 None 💨 5 mph H 68%29.91 inHg

In Nampa and, more broadly, across the state of Idaho: Clear skies are expected throughout the day, with cool morning temperatures starting around 34 degrees and warming to a high near 59 degrees by the afternoon. Light northwest winds blowing up to 5 mph, with occasional gusts of the same speed, will provide little relief from the cool conditions. Overall, the weather will be calm and dry, making for a pleasant day to be outdoors. No precipitation is anticipated at any point today.

15-Day Weather Outlook for Nampa

TomorrowTomorrow Mostly sunny Mostly sunny 78°/50° 💧 None 💨 6 mph
Wednesday, Sep 16Wed Sep 16 Partly cloudy Partly cloudy 82°/53° 💧 None 💨 6 mph
Thursday, Sep 17Thu Sep 17 Light rain Light rain 77°/58° 💧 0.038 in 💨 11 mph
Friday, Sep 18Fri Sep 18 Mostly sunny Mostly sunny 76°/55° 💧 None 💨 9 mph
Saturday, Sep 19Sat Sep 19 Mostly sunny Mostly sunny 79°/56° 💧 None 💨 7 mph
Sunday, Sep 20Sun Sep 20 Sunny Sunny 84°/55° 💧 None 💨 3 mph
Monday, Sep 21Mon Sep 21 Sunny Sunny 91°/60° 💧 None 💨 11 mph
Tuesday, Sep 22Tue Sep 22 Partly cloudy Partly cloudy 77°/61° 💧 None 💨 13 mph
Wednesday, Sep 23Wed Sep 23 Mostly sunny Mostly sunny 75°/54° 💧 None 💨 14 mph
Thursday, Sep 24Thu Sep 24 Partly cloudy Partly cloudy 75°/55° 💧 0.001 in 💨 8 mph
Friday, Sep 25Fri Sep 25 Light rain Light rain 77°/58° 💧 0.021 in 💨 5 mph
Saturday, Sep 26Sat Sep 26 Partly cloudy Partly cloudy 71°/58° 💧 0.131 in 💨 7 mph
Sunday, Sep 27Sun Sep 27 Mostly cloudy Mostly cloudy 79°/54° 💧 None 💨 4 mph
Monday, Sep 28Mon Sep 28 Mostly sunny Mostly sunny 78°/57° 💧 None 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Nampa

Vertical axis: °F · Color based on temperature
Sunny at 10:00 AM
59° Today 10:00 AM
Sunny at 11:00 AM
61° 11:00 AM
Sunny at 12:00 PM
64° 12:00 PM
Sunny at 1:00 PM
66° 1:00 PM
Sunny at 2:00 PM
68° Today 2:00 PM
Sunny at 3:00 PM
69° 3:00 PM
Sunny at 4:00 PM
70° 4:00 PM
Sunny at 5:00 PM
71° 5:00 PM
Sunny at 6:00 PM
70° Today 6:00 PM
Sunny at 7:00 PM
69° 7:00 PM
Clear night at 8:00 PM
65° 8:00 PM
Clear night at 9:00 PM
62° 9:00 PM
Clear night at 10:00 PM
61° Today 10:00 PM
Clear night at 11:00 PM
59° 11:00 PM
Clear night at 12:00 AM
58° 12:00 AM
Clear night at 1:00 AM
57° 1:00 AM
Clear night at 2:00 AM
56° Tomorrow 2:00 AM
Clear night at 3:00 AM
54° 3:00 AM
Clear night at 4:00 AM
52° 4:00 AM
Clear night at 5:00 AM
51° 5:00 AM
Clear night at 6:00 AM
50° Tomorrow 6:00 AM
Clear night at 7:00 AM
50° 7:00 AM
Sunny at 8:00 AM
50° 8:00 AM
Sunny at 9:00 AM
55° 9:00 AM
Sunny at 10:00 AM
61° Tomorrow 10:00 AM
Sunny at 11:00 AM
67° 11:00 AM
Sunny at 12:00 PM
70° 12:00 PM
Sunny at 1:00 PM
73° 1:00 PM
Mostly sunny at 2:00 PM
75° Tomorrow 2:00 PM
Partly cloudy at 3:00 PM
77° 3:00 PM
Overcast at 4:00 PM
78° 4:00 PM
Overcast at 5:00 PM
77° 5:00 PM
Mostly sunny at 6:00 PM
77° Tomorrow 6:00 PM
Mostly sunny at 7:00 PM
75° 7:00 PM
Mostly clear night at 8:00 PM
70° 8:00 PM
Clear night at 9:00 PM
68° 9:00 PM
Mostly clear night at 10:00 PM
66° Tomorrow 10:00 PM
Partly cloudy night at 11:00 PM
64° 11:00 PM
Partly cloudy night at 12:00 AM
62° 12:00 AM
Mostly cloudy night at 1:00 AM
60° 1:00 AM
Partly cloudy night at 2:00 AM
59° Wednesday 2:00 AM
Mostly clear night at 3:00 AM
56° 3:00 AM
Mostly cloudy night at 4:00 AM
55° 4:00 AM
Mostly cloudy night at 5:00 AM
54° 5:00 AM
Partly cloudy night at 6:00 AM
54° Wednesday 6:00 AM
Partly cloudy night at 7:00 AM
53° 7:00 AM
Mostly sunny at 8:00 AM
53° 8:00 AM
Sunny at 9:00 AM
57° 9:00 AM
Sunny at 10:00 AM
61° Wednesday 10:00 AM
Mostly sunny at 11:00 AM
65° 11:00 AM
Sunny at 12:00 PM
69° 12:00 PM
Sunny at 1:00 PM
73° 1:00 PM
Sunny at 2:00 PM
77° Wednesday 2:00 PM
Sunny at 3:00 PM
79° 3:00 PM
Sunny at 4:00 PM
81° 4:00 PM
Mostly sunny at 5:00 PM
82° 5:00 PM
Mostly sunny at 6:00 PM
82° Wednesday 6:00 PM
Light rain at 3:00 AM
60° 3:00 AM
Clear night at 6:00 AM
56° 6:00 AM
Sunny at 9:00 AM
59° 9:00 AM
Sunny at 12:00 PM
70° Thursday 12:00 PM
Light rain at 3:00 PM
73° 3:00 PM
Mostly sunny at 6:00 PM
73° 6:00 PM
Clear night at 9:00 PM
65° 9:00 PM
Clear night at 12:00 AM
59° Friday 12:00 AM
Clear night at 3:00 AM
56° 3:00 AM
Partly cloudy night at 6:00 AM
54° 6:00 AM
Mostly sunny at 9:00 AM
58° 9:00 AM
Sunny at 12:00 PM
65° Friday 12:00 PM
Sunny at 3:00 PM
74° 3:00 PM
Sunny at 6:00 PM
75° 6:00 PM
Clear night at 9:00 PM
65° 9:00 PM
Clear night at 12:00 AM
61° Saturday 12:00 AM
Clear night at 3:00 AM
57° 3:00 AM
Clear night at 6:00 AM
53° 6:00 AM
Sunny at 9:00 AM
57° 9:00 AM
Sunny at 12:00 PM
71° Saturday 12:00 PM
Sunny at 3:00 PM
78° 3:00 PM
Sunny at 6:00 PM
78° 6:00 PM
Clear night at 9:00 PM
68° 9:00 PM
Clear night at 12:00 AM
63° Sunday 12:00 AM
Clear night at 6:00 AM
65° 6:00 AM
Sunny at 12:00 PM
55° 12:00 PM
Sunny at 6:00 PM
76° 6:00 PM
Clear night at 12:00 AM
84° Monday 12:00 AM
Clear night at 6:00 AM
65° 6:00 AM
Sunny at 12:00 PM
60° 12:00 PM
Sunny at 6:00 PM
81° 6:00 PM
Clear night at 12:00 AM
91° Tuesday 12:00 AM
Partly cloudy night at 6:00 AM
69° 6:00 AM
Partly cloudy at 12:00 PM
61° 12:00 PM
Mostly cloudy at 6:00 PM
75° 6:00 PM
Partly cloudy night at 12:00 AM
77° Wednesday 12:00 AM
Mostly clear night at 6:00 AM
61° 6:00 AM
Partly cloudy at 12:00 PM
54° 12:00 PM
Mostly cloudy at 6:00 PM
64° 6:00 PM
Clear night at 12:00 AM
75° Thursday 12:00 AM
Partly cloudy night at 6:00 AM
61° 6:00 AM
Mostly cloudy at 12:00 PM
55° 12:00 PM
Partly cloudy at 6:00 PM
70° 6:00 PM
Overcast night at 12:00 AM
75° Friday 12:00 AM
Mostly cloudy night at 6:00 AM
63° 6:00 AM
Partly cloudy at 12:00 PM
58° 12:00 PM
Light rain at 6:00 PM
73° 6:00 PM
Partly cloudy night at 12:00 AM
77° Saturday 12:00 AM
Partly cloudy night at 6:00 AM
63° 6:00 AM
Mostly sunny at 12:00 PM
58° 12:00 PM
Mostly sunny at 6:00 PM
69° 6:00 PM
Partly cloudy night at 12:00 AM
71° Sunday 12:00 AM
Partly cloudy night at 6:00 AM
60° 6:00 AM
Sunny at 12:00 PM
54° 12:00 PM
Partly cloudy at 6:00 PM
72° 6:00 PM
Mostly cloudy night at 12:00 AM
79° Monday 12:00 AM
Mostly clear night at 6:00 AM
64° 6:00 AM
Mostly cloudy at 12:00 PM
57° 12:00 PM
Sunny at 6:00 PM
71° 6:00 PM
Partly cloudy night at 12:00 AM
78° Tuesday 12:00 AM

AIR QUALITY FORECAST

Air Quality Forecast for Nampa

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 10:00 AM
PM2.5 Fine particles Good 0,5µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 1,1µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 63,6µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,4µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Nampa

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.
0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme
Today UV 5,8Moderate 🙂Fair
Tomorrow UV 5,4Moderate 🙂Fair
Wednesday UV 4,8Moderate 😐Moderate
Thursday UV 7,0High 😐Moderate
Friday UV 7,0High 🙂Fair
Saturday UV 7,0High Unavailable
Sunday UV 6,0High Unavailable
Hourly UV index today
10:00 AMUV 1,5 11:00 AMUV 2,9 12:00 PMUV 4,5 1:00 PMUV 5,5 2:00 PMUV 5,8 3:00 PMUV 5,1 4:00 PMUV 3,7 5:00 PMUV 2,2 6:00 PMUV 0,9 7:00 PMUV 0,2
Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Nampa

Vertical axis: mph · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in mph. Today 10:00 AM 11:00 AM 12:00 PM 1:00 PM Today 2:00 PM 3:00 PM 4:00 PM 5:00 PM Today 6:00 PM 7:00 PM 8:00 PM 9:00 PM Today 10:00 PM 11:00 PM 12:00 AM 1:00 AM Tomorrow 2:00 AM 3:00 AM 4:00 AM 5:00 AM Tomorrow 6:00 AM 7:00 AM 8:00 AM 9:00 AM Tomorrow 10:00 AM 11:00 AM 12:00 PM 1:00 PM Tomorrow 2:00 PM 3:00 PM 4:00 PM 5:00 PM Tomorrow 6:00 PM 7:00 PM 8:00 PM 9:00 PM Tomorrow 10:00 PM 11:00 PM 12:00 AM 1:00 AM Wednesday 2:00 AM 3:00 AM 4:00 AM 5:00 AM Wednesday 6:00 AM 7:00 AM 8:00 AM 9:00 AM Wednesday 10:00 AM 11:00 AM 12:00 PM 1:00 PM Wednesday 2:00 PM 3:00 PM 4:00 PM 5:00 PM Wednesday 6:00 PM 3:00 AM 6:00 AM 9:00 AM Thursday 12:00 PM 3:00 PM 6:00 PM 9:00 PM Friday 12:00 AM 3:00 AM 6:00 AM 9:00 AM Friday 12:00 PM 3:00 PM 6:00 PM 9:00 PM Saturday 12:00 AM 3:00 AM 6:00 AM 9:00 AM Saturday 12:00 PM 3:00 PM 6:00 PM 9:00 PM Sunday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Monday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Tuesday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Wednesday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Thursday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Friday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Saturday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Sunday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Monday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Tuesday 12:00 AM
Sustained wind Max gusts
NIGHT SKY · NAMPA, IDAHO

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

100/100Best-hour score
BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 9:36 PM–5:48 AM
Cloud cover 0% Real hourly forecast for the best viewing hour.
Moonlight 14% Waxing Crescent · Moon below the horizon at the best viewing hour.
Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 85° high at the best hour.
Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.
Chance ≥1 meteor in 30 min81%
UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.
SEP 5–SEP 21
September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak
ACTIVE NOW
SEP 20–NOV 20
Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak
UPCOMING
OCT 2–NOV 7
OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak
UPCOMING
OCT 20–DEC 10
Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak
UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

Forecast data for Nampa were last refreshed today at 9:02 AM. The current forecast period extends through 16/09/2026 at 7:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.