Idaho Weather Forecast
Idaho weather: 78°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Risk assessment for Idaho
Derived from the current forecast window - not an official warning.
Peak gusts of 29 mph and 0 thunderstorm days in the next 16 days.
Wettest single day forecast at 0,0 in, 0,0 in across the window. Flash flooding risk rises sharply above 50 mm in a day.
Active alerts for Idaho
Heat Advisory issued August 20 at 2:16PM MDT until August 21 at 9:00PM MDT by NWS Boise ID
Issued by NWS Boise ID
16-day forecast for Idaho
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Aug 21 | ☁️ Overcast | 105° / 65° | 5% | 9 mph | 7 |
| Sat, Aug 22 | 🌧️ Heavy drizzle | 98° / 82° | 17% · 0,0 in | 16 mph | 6 |
| Sun, Aug 23 | ☁️ Overcast | 94° / 74° | 17% | 15 mph | 7 |
| Mon, Aug 24 | ☁️ Overcast | 93° / 70° | 6% | 6 mph | 6 |
| Tue, Aug 25 | ☁️ Overcast | 99° / 75° | 6% | 6 mph | 7 |
| Wed, Aug 26 | ☁️ Overcast | 98° / 80° | 2% | 15 mph | 6 |
| Thu, Aug 27 | ☁️ Overcast | 89° / 66° | 0% | 10 mph | 7 |
| Fri, Aug 28 | ☀️ Clear sky | 88° / 65° | 2% | 9 mph | 7 |
| Sat, Aug 29 | ⛅ Partly cloudy | 92° / 69° | 2% | 8 mph | 7 |
| Sun, Aug 30 | ☁️ Overcast | 91° / 71° | 4% | 8 mph | 7 |
| Mon, Aug 31 | ☁️ Overcast | 80° / 64° | 4% | 13 mph | 7 |
| Tue, Sep 1 | ☀️ Clear sky | 91° / 64° | 3% | 10 mph | 7 |
| Wed, Sep 2 | ☀️ Clear sky | 85° / 64° | 6% | 9 mph | 7 |
| Thu, Sep 3 | ☁️ Overcast | 83° / 60° | 5% | 10 mph | 7 |
| Fri, Sep 4 | ☁️ Overcast | 82° / 67° | 6% | 9 mph | 4 |
| Sat, Sep 5 | ☀️ Clear sky | -- / -- | 3% | -- | — |
What this means for Idaho
Today is much warmer than average for August. The forecast high of 105°F is 14.4°F above the 91°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 82°F.
See the Idaho forecast by time range
Idaho weather - more answers
Explore Idaho
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Idaho?
Idaho is a state in United States. Its coordinates are 43.615, -116.2023. It lies in North America.
What is the weather like in Idaho right now?
It is currently 78°F (25°C) with mainly clear. Humidity is 22% and wind is 1 mph.
When is the best time to visit Idaho?
May, June, July, August and September offer the most comfortable conditions in Idaho, which has a continental climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Idaho in?
Idaho observes America/Boise (UTC-06:00). The local time is 1:17 AM.
How many people live in Idaho?
Idaho has a population of approximately 2 million.
What is the nearest airport to Idaho?
The closest airports are Salt Lake City International Airport (SLC), 291 mi away.
What are the top things to do in Idaho?
Popular options include Palouse Falls State Park.
What places are in Idaho?
Idaho covers 1 places in this atlas, including Boise.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-states) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 21, 2026 at 1:17 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
