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The weather in Idaho in March is very cold with temperatures between -9°C and 0°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Idaho during the month of March. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Idaho is going to experience quite a number of days of snow during March. It’s the perfect time to build snowmen, drink hot cocoa, and have a snowball fight. Just remember to wear a warm scarf and a pair of mittens!
Our weather forecast can give you a great sense of what weather to expect in Idaho in March 2025.
If you’re planning to visit Idaho in the near future, we highly recommend that you review the 14 day weather forecast for Idaho before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -15° / -22° | 1 | 23 | 7 | 3 mm | Awful | Idaho in January |
| February | -11° / -19° | 2 | 19 | 7 | 6 mm | Awful | Idaho in February |
| March | 0° / -9° | 3 | 20 | 8 | 10 mm | Awful | Idaho in March |
| April | 11° / 1° | 1 | 25 | 3 | 22 mm | Bad | Idaho in April |
| May | 19° / 8° | 4 | 27 | 1 | 44 mm | Good | Idaho in May |
| June | 24° / 15° | 5 | 25 | 0 | 60 mm | Perfect | Idaho in June |
| July | 27° / 18° | 5 | 26 | 0 | 84 mm | Perfect | Idaho in July |
| August | 25° / 16° | 3 | 28 | 0 | 57 mm | Perfect | Idaho in August |
| September | 19° / 9° | 4 | 26 | 0 | 37 mm | Good | Idaho in September |
| October | 9° / 1° | 2 | 26 | 3 | 24 mm | Bad | Idaho in October |
| November | -3° / -9° | 2 | 21 | 8 | 12 mm | Awful | Idaho in November |
| December | -13° / -19° | 1 | 22 | 7 | 4 mm | Awful | Idaho in December |