Boise, Idaho Weather Forecast
Today in Boise: slight rain with a high near 74°F and a low around 53°F. Rain chance 53%. Rain chances peak at 39% on Friday. Cooling trend: highs fall from 74°F today to 63°F by Sunday.
Forecast updated 2:05 PM MDT, Oct 22
Active Weather Alerts
7-Day Forecast for Boise
Today 10/22
53%
74°53°
Fri 10/23
39%
56°44°
Sat 10/24
58°36°
Sun 10/25
63°38°
Mon 10/26
12%
63°41°
Tue 10/27
12%
60°39°
Wed 10/28
61°38°
Next 24 Hours
| Now | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | Fri12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sky |  | | | | |  | | | | | | |  | |  |  | | | | | | | | |
| Temp | 74° | 72° | 69° | 66° | 64° | 62° | 60° | 58° | 57° | 56° | 56° | 55° | 53° | 51° | 50° | 48° | 48° | 46° | 46° | 47° | 48° | 47° | 49° | 51° |
| Rain | 28% | 46% | 53% | 33% | 21% | 20% | 15% | 15% | 20% | 29% | 38% | 34% | 39% | 25% | 16% | 16% | 21% | 19% | 21% | 24% | 21% | 16% | 12% | 8% |
| Wind | SSE 10 | SSE 9 | SE 9 | ESE 7 | SE 6 | SE 4 | SE 4 | SSE 3 | SE 3 | SSE 3 | W 3 | W 4 | WNW 7 | WNW 9 | WNW 9 | WNW 11 | WNW 13 | WNW 13 | WNW 13 | WNW 14 | WNW 14 | WNW 14 | WNW 15 | WNW 15 |
Growing Conditions
Growing degree days
3,483
since Apr 1, base 50°F
Rain, last 30 days
0.00 in
model analysis
Rain, year to date
10.02 in
since Jan 1
2-inch soil temperature
61°F
yesterday, daily average
Reference ET, last 7 days
0.81 in
FAO-56 grass reference
Through Oct 21. Season totals use model analysis for this point and update every morning.
Soil, ET and spray tools for Boise →
Current Stats & Observations
NWS Forecast
About Boise Weather
Boise sits at about 2,743 feet above sea level in Ada County, Idaho. About 389,280 people live in the Boise area. Official forecasts and warnings for the area come from the National Weather Service BOI office, and the nearest NEXRAD radar site is KCBX. The city is in USDA plant hardiness zone 7a, where the coldest winter night typically falls between 0 to 5°F. Over the past ten years the last spring freeze has come around Apr 17 and the first fall freeze around Oct 26.