Idaho Falls, ID 14-Day Forecast
Idaho, United States 🇺🇸
76°
Overcast right now
Today: high 85°, low 55°
Updated 6 hours ago
Idaho Falls weather for the next 14 days
Tuesday, October 6
Sunny High 82° Low 53°Precipitation
0%
· 0.0 in
Max wind
10 mph
Humidity
26%
UV index
5 - Moderate
Sunrise / sunset
07:31 AM / 07:00 PM
Wednesday, October 7
Sunny High 80° Low 52°Precipitation
0%
· 0.0 in
Max wind
9 mph
Humidity
24%
UV index
5 - Moderate
Sunrise / sunset
07:32 AM / 06:59 PM
Thursday, October 8
Sunny High 79° Low 50°Precipitation
0%
· 0.0 in
Max wind
10 mph
Humidity
18%
UV index
5 - Moderate
Sunrise / sunset
07:33 AM / 06:57 PM
Friday, October 9
Sunny High 80° Low 50°Precipitation
1%
· 0.0 in
Max wind
13 mph
Humidity
21%
UV index
7 - High
Sunrise / sunset
07:35 AM / 06:55 PM
Saturday, October 10
Overcast High 75° Low 55°Precipitation
5%
· 0.0 in
Max wind
20 mph
Humidity
24%
UV index
6 - High
Sunrise / sunset
07:36 AM / 06:53 PM
Sunday, October 11
Overcast High 67° Low 48°Precipitation
57%
· 0.06 in
Max wind
15 mph
Humidity
49%
UV index
4 - Moderate
Sunrise / sunset
07:37 AM / 06:52 PM
Monday, October 12
Overcast High 46° Low 35°Precipitation
10%
· 0.0 in
Max wind
19 mph
Humidity
51%
UV index
2 - Low
Sunrise / sunset
07:38 AM / 06:50 PM
Tuesday, October 13
Sunny High 46° Low 28°Precipitation
4%
· 0.0 in
Max wind
9 mph
Humidity
46%
UV index
3 - Moderate
Sunrise / sunset
07:39 AM / 06:48 PM
Wednesday, October 14
Sunny High 52° Low 28°Precipitation
1%
· 0.0 in
Max wind
6 mph
Humidity
43%
UV index
4 - Moderate
Sunrise / sunset
07:41 AM / 06:47 PM
Thursday, October 15
Sunny High 60° Low 34°Precipitation
1%
· 0.0 in
Max wind
5 mph
Humidity
33%
UV index
5 - Moderate
Sunrise / sunset
07:42 AM / 06:45 PM
Friday, October 16
Sunny High 63° Low 37°Precipitation
2%
· 0.0 in
Max wind
5 mph
Humidity
25%
UV index
5 - Moderate
Sunrise / sunset
07:43 AM / 06:43 PM
Saturday, October 17
Overcast High 64° Low 39°Precipitation
4%
· 0.0 in
Max wind
6 mph
Humidity
22%
UV index
5 - Moderate
Sunrise / sunset
07:44 AM / 06:42 PM
Sunday, October 18
Overcast High 63° Low 42°Precipitation
8%
· 0.0 in
Max wind
5 mph
Humidity
22%
UV index
4 - Moderate
Sunrise / sunset
07:45 AM / 06:40 PM
Idaho Falls 14-day outlook: the story
The warmest day of Idaho Falls's 14-day outlook is Monday, October 5 with a high near 85°F (29°C); the coolest night comes Tuesday, October 13, dipping to 28°F (-2°C). The trend points cooler: week two runs about 22°F below week one. Highs over the next two weeks average 78°F (26°C), about 19°F (11°C) above the typical October high of 59°F (15°C).
Precipitation is most likely on Sunday 11; the wettest day looks like Sunday, October 11 with about 0.06 in (1.5 mm) expected. For the weekend, expect Saturday 75°F (24°C) and overcast / Sunday 67°F (19°C) and overcast.
For typical conditions month by month, see the Idaho Falls climate & average temperatures guide.
Idaho Falls forecast questions
Will it rain in Idaho Falls this week?
The forecast currently shows meaningful precipitation chances on 1 of the next 14 days, peaking around Sunday, October 11.
What will be the warmest day in Idaho Falls over the next 14 days?
Monday, October 5, with a forecast high near 85°F (29°C).
How accurate is a 14-day forecast for Idaho Falls?
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 Idaho Falls by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 31° | 15° | 9 | 1.2 in | 6.1 h/day | 9.3 h | 28% | 77% |
| February | 36° | 19° | 9 | 1.2 in | 7.4 h/day | 10.4 h | 33% | 70% |
| March | 47° | 26° | 9 | 1.5 in | 9.1 h/day | 11.8 h | 30% | 62% |
| April | 57° | 33° | 9 | 1.3 in | 10.6 h/day | 13.4 h | 30% | 51% |
| May | 67° | 42° | 10 | 1.9 in | 12.1 h/day | 14.7 h | 32% | 49% |
| June | 80° | 52° | 5 | 0.8 in | 13.7 h/day | 15.4 h | 17% | 39% |
| July | 90° | 60° | 1 | 0.2 in | 14.2 h/day | 15.1 h | 4% | 29% |
| August | 86° | 58° | 3 | 0.5 in | 12.4 h/day | 14.0 h | 10% | 34% |
| September | 76° | 49° | 5 | 1.2 in | 11.0 h/day | 12.4 h | 15% | 42% |
| October | 59° | 37° | 7 | 1.4 in | 9.1 h/day | 10.9 h | 23% | 56% |
| November | 43° | 25° | 8 | 1.2 in | 7.1 h/day | 9.6 h | 27% | 67% |
| December | 32° | 17° | 9 | 1.4 in | 5.5 h/day | 9.0 h | 30% | 74% |
14-day forecasts nearby