Idaho Falls, Idaho Weather Forecast
Today in Idaho Falls: mostly sunny with a high near 70°F and a low around 45°F. Rain chance 36%. Best chance of rain is Friday at 84%. Cooling trend: highs fall from 70°F today to 53°F by Sunday.
Forecast updated 2:05 PM MDT, Oct 22
Active Weather Alerts
7-Day Forecast for Idaho Falls
Today 10/22
36%
70°45°
Fri 10/23
84%
53°42°
Sat 10/24
16%
50°35°
Sun 10/25
53°32°
Mon 10/26
56°34°
Tue 10/27
19%
52°34°
Wed 10/28
52°32°
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 | 70° | 69° | 68° | 65° | 62° | 58° | 56° | 54° | 53° | 53° | 52° | 51° | 50° | 49° | 48° | 48° | 46° | 45° | 46° | 47° | 47° | 47° | 47° | 47° |
| Rain | 2% | 4% | 5% | 7% | 14% | 18% | 26% | 36% | 27% | 31% | 43% | 60% | 61% | 82% | 84% | 75% | 63% | 45% | 47% | 41% | 47% | 51% | 59% | 54% |
| Wind | S 7 | S 7 | S 6 | S 5 | S 5 | S 5 | S 5 | S 4 | S 3 | SW 3 | SSW 3 | SW 4 | S 5 | SSW 9 | S 12 | SSW 14 | S 15 | S 15 | S 16 | SSW 17 | SSW 18 | SSW 18 | SSW 19 | SSW 19 |
Growing Conditions
Growing degree days
2,931
since Apr 1, base 50°F
Rain, last 30 days
1.42 in
model analysis
Rain, year to date
8.55 in
since Jan 1
2-inch soil temperature
53°F
yesterday, daily average
Reference ET, last 7 days
0.68 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 Idaho Falls →
Current Stats & Observations
NWS Forecast
About Idaho Falls Weather
Idaho Falls sits at about 4,708 feet above sea level in Bonneville County, Idaho. About 100,442 people live in the Idaho Falls area. Official forecasts and warnings for the area come from the National Weather Service PIH office, and the nearest NEXRAD radar site is KSFX. The city is in USDA plant hardiness zone 5b, where the coldest winter night typically falls between -15 to -10°F. Over the past ten years the last spring freeze has come around May 11 and the first fall freeze around Oct 20.