Boise, ID Weather Forecast

The forecast is bbbrraaaiiinnsss....

🌪 TROPICAL ACTIVITY: TROPICAL STORM FAY Sustained winds 35 kt. Track it on the zombie radar or see NHC advisories.
🌪 TROPICAL ACTIVITY: HURRICANE ODALYS Sustained winds 75 kt. Track it on the zombie radar or see NHC advisories.
🌪 TROPICAL ACTIVITY: HURRICANE POLO Sustained winds 140 kt. Track it on the zombie radar or see NHC advisories.
Mostly cloudy night
69°

ddaarrkk cclouudds

  • Humidity: 44%
  • Visibility: 6.2 Mi
  • Wind: SE at 4 MPH
  • Dew Point: 0° F
  • Cloud Cover: 66%
  • UV Index: 0 - Low
  • Air Quality: Fair
  • Moon: Waxing Gibbous (94% full) · up 6:23pm, down 5:17am

☀ Solar Outbreak Watch: Quiet · largest flare C1.1 · Kp 3 The sun naps. The horde does not. full report →

Today's high of 90° F makes this one of the hottest September 23rds since 2005.

ThuFriSatSunMon

Zombie Survival Index™

55/100 — ELEVATED Locckk yourr doooorssss

  • Mild temps: standard shamble speed
  • Clear sightlines: you will see them coming
  • Darkness: their favorite

Today's undead advice: Count your group at dusk. Count again at dawn.

Rule #5 Silence is golden After dark, sound carries — and so does the smell of the living. all the Rules of Survival →

🌡 The weather here, in general

Boise runs the full range. The warmest stretch, around July, averages a high near 94°F, while January nights average 25°F — a 69-degree spread, so a coat that works in January is useless by July and the other way round.

Expect around 55 days a year at 90°F or above, concentrated in July. Heat illness climbs sharply on consecutive hot days, so the third day of a streak is more dangerous than the first.

Snow shows up most years — about 24 inches — but rarely in quantity. 106 freezing nights a year matter more, because the risk here is ice rather than depth.

This is dry country — roughly 14 inches a year. When rain does come it tends to arrive all at once, which is why flash flooding is a desert problem as much as a tropical one.

MonthAvg highAvg lowRainSnow
Jan39°25° 2"6.2"
Feb45°28° 1.6"4.8"
Mar54°34° 1.6"2.5"
Apr62°39° 1.3"0.7"
May71°48° 1.6"0.1"
Jun83°57° 0.9"
Jul94°65° 0.1"
Aug91°64° 0.1"
Sep80°55° 0.5"
Oct65°43° 1"
Nov49°32° 1.4"2.3"
Dec38°25° 2.2"7"

Averages from ten years of observed daily records (2015–2024) for this location. They describe what is typical, not what will happen — for that, see the forecast above.

📷 Golden Hour

  • Golden hour: 7:05pm - 7:43pm (dawn: 7:29am - 8:06am)
  • Blue hour: 7:43pm - 8:12pm (dawn: 7:00am - 7:29am)
  • Sun sets: 271° W (rises 89° E)
  • Dark sky: 9:19pm – 5:52am · next new moon Oct 11 (17d)

Thin Sunset odds 60/100 A few clouds to catch colour. Modest, but workable.

Waxing Gibbous
94% · full Sep 26

Sun & moon: sunrisesunset.io · cloud layers: Open-Meteo · astro & Milky Way planner →

Weather Details

Fri

Mostly cloudy night

High: 80° F
|
Low: 64° F
ddaarrkk cclouudds
High confidence ±1.9°
Weather Details

Sat

Clear night

High: 66° F
|
Low: 47° F
nniiighhht... hunnnttt tiiime
Moderate confidence ±4°
Weather Details

Sun

Mostly cloudy night

High: 69° F
|
Low: 55° F
ddaarrkk cclouudds
Moderate confidence ±3.5°
Weather Details

Mon

Mostly cloudy night

High: 69° F
|
Low: 49° F
ddaarrkk cclouudds
Moderate confidence ±3.5°
Weather Details


High: ° F
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Low: ° F
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High: ° F
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Will it rain on your plans?

Weather Details

Thu Sep 24 12am 69° F

Mostly cloudy night
ddaarrkk cclouudds

  • Cloud Cover: 55%
  • Dew Point: 0° F
  • Humidity: 42%
  • Precipitation: None
  • UV Index: 0 - Unknown
  • Visibility: 6.2 Mi
  • Wind: 4 MPH / E
Weather Details

Thu Sep 24 3am 67° F

Partly cloudy night
ddaarrkk cclouudds

  • Cloud Cover: 37%
  • Dew Point: 0° F
  • Humidity: 44%
  • Precipitation: None
  • UV Index: 0 - Unknown
  • Visibility: 6.2 Mi
  • Wind: 3 MPH / E
Weather Details

Thu Sep 24 6am 63° F

Partly cloudy night
ddaarrkk cclouudds

  • Cloud Cover: 30%
  • Dew Point: 0° F
  • Humidity: 48%
  • Precipitation: None
  • UV Index: 0 - Unknown
  • Visibility: 6.2 Mi
  • Wind: 5 MPH / E
Weather Details

Thu Sep 24 9am 65° F

Sunny
Ssssuuunnnny sqquuiinnnttt

  • Cloud Cover: 0%
  • Dew Point: 0° F
  • Humidity: 40%
  • Precipitation: None
  • UV Index: 0 - Unknown
  • Visibility: 6.2 Mi
  • Wind: 7 MPH / ESE
Weather Details

Thu Sep 24 12pm 82° F

Sunny
Ssssuuunnnny sqquuiinnnttt

  • Cloud Cover: 0%
  • Dew Point: 0° F
  • Humidity: 26%
  • Precipitation: None
  • UV Index: 0 - Unknown
  • Visibility: 6.2 Mi
  • Wind: 11 MPH / SSE
Weather Details

Thu Sep 24 3pm 90° F

Sunny
Ssssuuunnnny sqquuiinnnttt

  • Cloud Cover: 0%
  • Dew Point: 0° F
  • Humidity: 16%
  • Precipitation: None
  • UV Index: 0 - Unknown
  • Visibility: 6.2 Mi
  • Wind: 12 MPH / SSE
Weather Details

Thu Sep 24 6pm 90° F

Sunny
Ssssuuunnnny sqquuiinnnttt

  • Cloud Cover: 5%
  • Dew Point: 0° F
  • Humidity: 14%
  • Precipitation: None
  • UV Index: 0 - Unknown
  • Visibility: 6.2 Mi
  • Wind: 9 MPH / SSE
Weather Details

Thu Sep 24 9pm 77° F

Clear night
nniiighhht... hunnnttt tiiime

  • Cloud Cover: 2%
  • Dew Point: 0° F
  • Humidity: 22%
  • Precipitation: None
  • UV Index: 0 - Unknown
  • Visibility: 6.2 Mi
  • Wind: 13 MPH / ESE

7-Day Meteogram

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