Helena, MT weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Helena now
Loading the National Weather Service forecast…
Helena weather by the hour
Helena weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Helena.
This week in Helena
Sunrise, sunset and moon in Helena
What is the weather usually like in Helena?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 86°F average high
- Januarycoldest month · 13°F average low
- 11.4 inprecipitation per year · 290 mm
- 37.2 insnowfall per year · 94 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Helena: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station HELENA RGNL AP, MT US (USW00024144), adjusted for the elevation of Helena.
Helena weather month by month
Sunrise and sunset in Helena through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 8:05 AM | 5:09 PM | 9 h 3 min |
| February | 7:29 AM | 5:54 PM | 10 h 25 min |
| March | 7:38 AM | 7:35 PM | 11 h 56 min |
| April | 6:38 AM | 8:17 PM | 13 h 39 min |
| May | 5:51 AM | 8:57 PM | 15 h 5 min |
| June | 5:32 AM | 9:25 PM | 15 h 52 min |
| July | 5:48 AM | 9:19 PM | 15 h 31 min |
| August | 6:25 AM | 8:39 PM | 14 h 14 min |
| September | 7:04 AM | 7:41 PM | 12 h 36 min |
| October | 7:44 AM | 6:42 PM | 10 h 58 min |
| November | 7:29 AM | 4:56 PM | 9 h 27 min |
| December | 8:03 AM | 4:42 PM | 8 h 38 min |
Times for the 15th of each month, local time (America/Denver).
What is the weather like in Helena?
Helena has a cold semi-arid climate. The warmest month is July, with an average high of 86°F (30°C), and the coldest is January, with average lows of 13°F (-10°C).
It gets about 11.4 inches (290 mm) of precipitation a year. The wettest month is June and the driest is January. Snow is common: about 37 inches fall in an average year.
The best time to visit Helena is June to September. At 3,875 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Helena
Weather in towns near Helena
- South Hills weather2.9 mi S
- Unionville weather4.6 mi SW
- Helena West Side weather4.6 mi W
- East Helena weather4.7 mi E
- Helena Valley West Central weather5.0 mi NW
- Helena Valley Southeast weather5.9 mi E
- Montana City weather6.4 mi SE
- Helena Valley Northeast weather8.5 mi NE
- Helena Valley Northwest weather9.4 mi N
- Clancy weather10.1 mi S
Questions about the weather in Helena
What is the hottest month in Helena?
July, with an average high of 86°F (30°C).
What is the coldest month in Helena?
January, with an average low of 13°F (-10°C).
How much does it rain in Helena?
About 11.4 inches (290 mm) a year; the wettest month is June.
Does it snow in Helena?
Yes, about 37 inches of snow fall in an average year.
When is the best time to visit Helena?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Helena have?
Cold semi-arid (Köppen BSk).
What is the weather like in Helena in November?
Highs average 43°F and lows 23°F, with about 0.6 inches of precipitation.
What time is sunrise in Helena?
Around 7:29 AM in mid-November, and sunset around 4:56 PM. Today’s exact times are shown above.
Where does this Helena weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Helena.
Last updated: