Idaho weather outlook for the next 7 days
From Oct 29 to Nov 4, temperatures in Idaho will range from 36° to 65°. The hottest day is today (Oct 29), with a high of 65°; the coolest night is today (Oct 29), dipping to around 36°. Overall, daytime temperatures are expected to ease slightly towards the end of the period.
1 of the next 7 days are forecast to bring 0.04 in of rain or more: Sunday, Nov 1 (~0.30 in). The wettest day is Sunday, Nov 1, with around 0.30 in of rain.
The windiest day is Monday, Nov 2, with average speeds of about 11 mph and gusts of up to 23 mph. The UV index peaks at 2.2 (low) today (Oct 29). Average daily humidity ranges from 38% to 98%.
- Chilly nights and early mornings: bring a jacket and dress in layers.
- Rainy days ahead: carry an umbrella or raincoat, slow down on wet roads and never drive through flooded roads – turn around, don't drown.
Frequently asked questions about the weather in Idaho
Will it rain in Idaho in the next 24 hours?
Yes. Over the next 24 hours, rain is likely in Idaho around 2 AM–4 AM tomorrow, with the highest chance (about 68%) at 2:00 AM tomorrow. Total rainfall is forecast at around <0.01 in.
What is the weather in Idaho tomorrow?
Tomorrow (Friday, Oct 30), Idaho will see light rain, with temperatures from 41° to 60°, a 68% chance of rain (about <0.01 in), humidity around 56% and winds of 8 mph. Bring an umbrella or raincoat. Cool weather, bring a jacket.
Which day will be hottest in Idaho this week?
According to the forecast, today (Oct 29) will be the hottest day, with a high of about 65°. The coolest is today (Oct 29), with a low of about 36°.
Which day is best for going out or outdoor activities in Idaho?
Today (Oct 29) is the best day of the next 7: scattered clouds, 36° to 65°, with a 0% chance of rain. Go in the morning or late afternoon to avoid the strongest sun.
Is this forecast accurate for every part of Idaho?
The forecast is calculated for a representative point in Idaho. In mountain and coastal areas, or during showers and thunderstorms, conditions can vary a lot from place to place. For tornadoes, hurricanes, floods and winter storms, always follow the official National Weather Service warnings.
Day by day in Idaho
| Day | Weather | High / Low | Rain | Wind | Heat index / wind chill |
|---|---|---|---|---|---|
| Today |  Scattered clouds |
65° / 36° | 0% · 0 in | 8 mph | 62° · Not hazardous |
| Tomorrow |  Light rain |
60° / 41° | 68% · <0.01 in | 8 mph | 59° · Not hazardous |
| Sat, Oct 31 | Light rain |
61° / 38° | 69% · 0.01 in | 6 mph | 59° · Not hazardous |
| Sun, Nov 1 | Moderate rain |
48° / 42° | 100% · 0.30 in | 8 mph | 37° · Chilly |
| Mon, Nov 2 |  Clear sky |
54° / 38° | 0% · 0 in | 11 mph | 52° · Not hazardous |
| Tue, Nov 3 |  Overcast clouds |
54° / 39° | 0% · 0 in | 3 mph | 52° · Not hazardous |
| Wed, Nov 4 |  Few clouds |
60° / 43° | 0% · 0 in | 9 mph | 58° · Not hazardous |
About the heat index and wind chill
The heat index is how hot it really feels when humidity is combined with the air temperature. The National Weather Service uses these levels: 80–90 °F caution, 90–103 °F extreme caution, 103–124 °F danger and 125 °F or more extreme danger. At "danger" level, heat cramps and heat exhaustion are likely with prolonged activity outdoors — drink water often, rest in the shade or air conditioning and avoid strenuous work in the afternoon.
The wind chill is how cold it feels on exposed skin when wind is combined with cold air (it applies at 50 °F and below). At a wind chill of −18 °F frostbite can develop in 30 minutes, at −35 °F in 10 minutes: cover your skin, wear layers, a hat and gloves.