Boise, ID 14-Day Forecast
Idaho, United States 🇺🇸
96°
Overcast right now
Today: high 98°, low 71°
Updated 13 min ago
Boise weather for the next 14 days
Thursday, August 27
Overcast High 97° Low 73°Precipitation
20%
· 0.01 in
Max wind
11 mph
Humidity
21%
UV index
7 - High
Sunrise / sunset
07:03 AM / 08:29 PM
Friday, August 28
Overcast High 86° Low 65°Precipitation
10%
· 0.0 in
Max wind
23 mph
Humidity
36%
UV index
6 - High
Sunrise / sunset
07:04 AM / 08:27 PM
Saturday, August 29
Sunny High 86° Low 62°Precipitation
3%
· 0.0 in
Max wind
13 mph
Humidity
41%
UV index
7 - High
Sunrise / sunset
07:05 AM / 08:26 PM
Sunday, August 30
Sunny High 81° Low 60°Precipitation
1%
· 0.0 in
Max wind
13 mph
Humidity
22%
UV index
7 - High
Sunrise / sunset
07:06 AM / 08:24 PM
Monday, August 31
Sunny High 92° Low 62°Precipitation
2%
· 0.0 in
Max wind
11 mph
Humidity
14%
UV index
8 - Very High
Sunrise / sunset
07:07 AM / 08:22 PM
Tuesday, September 1
Overcast High 84° Low 62°Precipitation
9%
· 0.0 in
Max wind
8 mph
Humidity
25%
UV index
6 - High
Sunrise / sunset
07:08 AM / 08:20 PM
Wednesday, September 2
Overcast High 81° Low 64°Precipitation
7%
· 0.0 in
Max wind
12 mph
Humidity
28%
UV index
7 - High
Sunrise / sunset
07:09 AM / 08:19 PM
Thursday, September 3
Sunny High 82° Low 62°Precipitation
1%
· 0.0 in
Max wind
18 mph
Humidity
27%
UV index
7 - High
Sunrise / sunset
07:10 AM / 08:17 PM
Friday, September 4
Sunny High 76° Low 51°Precipitation
1%
· 0.0 in
Max wind
13 mph
Humidity
30%
UV index
6 - High
Sunrise / sunset
07:12 AM / 08:15 PM
Saturday, September 5
Sunny High 71° Low 50°Precipitation
36%
· 0.02 in
Max wind
18 mph
Humidity
34%
UV index
6 - High
Sunrise / sunset
07:13 AM / 08:13 PM
Sunday, September 6
Sunny High 72° Low 45°Precipitation
1%
· 0.0 in
Max wind
13 mph
Humidity
39%
UV index
6 - High
Sunrise / sunset
07:14 AM / 08:12 PM
Monday, September 7
Overcast High 82° Low 56°Precipitation
4%
· 0.0 in
Max wind
9 mph
Humidity
16%
UV index
7 - High
Sunrise / sunset
07:15 AM / 08:10 PM
Tuesday, September 8
Sunny High 94° Low 66°Precipitation
0%
· 0.0 in
Max wind
7 mph
Humidity
14%
UV index
8 - Very High
Sunrise / sunset
07:16 AM / 08:08 PM
Boise 14-day outlook: the story
The warmest day of Boise's 14-day outlook is Wednesday, August 26 with a high near 98°F (37°C); the coolest night comes Sunday, September 6, dipping to 45°F (7°C). The trend points cooler: week two runs about 9°F below week one. Highs over the next two weeks average 89°F (32°C), right in line with the typical August high of 91°F (33°C).
No day in the outlook currently carries a strong precipitation signal. For the weekend, expect Saturday 86°F (30°C) and sunny / Sunday 81°F (27°C) and sunny.
For typical conditions month by month, see the Boise climate & average temperatures guide.
Boise forecast questions
Will it rain in Boise this week?
No day in the current 14-day outlook shows a strong rain signal for Boise.
What will be the warmest day in Boise over the next 14 days?
Wednesday, August 26, with a forecast high near 98°F (37°C).
How accurate is a 14-day forecast for Boise?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Boise by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 39° | 25° | 10 | 2.0 in | 6.4 h/day | 75% |
| February | 45° | 28° | 10 | 1.6 in | 7.5 h/day | 66% |
| March | 54° | 34° | 10 | 1.6 in | 9.2 h/day | 59% |
| April | 62° | 39° | 7 | 1.3 in | 10.9 h/day | 50% |
| May | 71° | 48° | 8 | 1.6 in | 12.2 h/day | 49% |
| June | 83° | 57° | 3 | 0.9 in | 13.4 h/day | 40% |
| July | 94° | 65° | 1 | 0.1 in | 14.0 h/day | 27% |
| August | 91° | 64° | 1 | 0.1 in | 12.9 h/day | 30% |
| September | 80° | 55° | 3 | 0.5 in | 11.1 h/day | 39% |
| October | 65° | 43° | 5 | 1.0 in | 9.2 h/day | 53% |
| November | 49° | 32° | 8 | 1.4 in | 7.1 h/day | 65% |
| December | 38° | 25° | 12 | 2.2 in | 5.6 h/day | 75% |
14-day forecasts nearby