Nampa, Idaho Weather Forecast
Today in Nampa: slight rain showers with a high near 73°F and a low around 52°F. Rain chance 36%. Rain chances peak at 31% on Friday. Cooling trend: highs fall from 73°F today to 62°F by Sunday.
Forecast updated 2:05 PM MDT, Oct 22
Active Weather Alerts
7-Day Forecast for Nampa
Today 10/22
36%
73°52°
Fri 10/23
31%
57°44°
Sat 10/24
58°37°
Sun 10/25
62°38°
Mon 10/26
11%
62°41°
Tue 10/27
11%
59°39°
Wed 10/28
60°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 | 73° | 71° | 69° | 67° | 66° | 61° | 60° | 59° | 58° | 57° | 56° | 55° | 53° | 52° | 50° | 49° | 48° | 47° | 48° | 50° | 51° | 50° | 51° | 52° |
| Rain | 30% | 27% | 36% | 27% | 21% | 21% | 16% | 19% | 25% | 24% | 22% | 31% | 20% | 14% | 11% | 16% | 21% | 16% | 22% | 25% | 21% | 16% | 11% | 8% |
| Wind | SSE 10 | S 9 | SE 8 | E 7 | ESE 5 | ESE 4 | S 4 | SSE 4 | SSE 4 | SW 4 | SW 6 | WNW 8 | WNW 10 | WNW 12 | WNW 15 | WNW 17 | WNW 18 | WNW 18 | WNW 18 | WNW 19 | WNW 19 | WNW 17 | WNW 17 | WNW 17 |
Growing Conditions
Growing degree days
3,581
since Apr 1, base 50°F
Rain, last 30 days
0.00 in
model analysis
Rain, year to date
9.73 in
since Jan 1
2-inch soil temperature
58°F
yesterday, daily average
Reference ET, last 7 days
0.83 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 Nampa →
Current Stats & Observations
NWS Forecast
About Nampa Weather
Nampa sits at about 2,470 feet above sea level in Canyon County, Idaho. About 184,428 people live in the Nampa 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 15 and the first fall freeze around Oct 28.