Sidney, MT weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Sidney now
Loading the National Weather Service forecast…
Sidney weather by the hour
Sidney weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Sidney.
This week in Sidney
Sunrise, sunset and moon in Sidney
What is the weather usually like in Sidney?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 87°F average high
- Januarycoldest month · 6°F average low
- 15.5 inprecipitation per year · 394 mm
- 30.4 insnowfall per year · 77 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Sidney: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station SIDNEY, MT US (USC00247560), adjusted for the elevation of Sidney.
Sidney weather month by month
Sunrise and sunset in Sidney through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:38 AM | 4:33 PM | 8 h 55 min |
| February | 7:00 AM | 5:21 PM | 10 h 21 min |
| March | 7:07 AM | 7:03 PM | 11 h 56 min |
| April | 6:05 AM | 7:48 PM | 13 h 42 min |
| May | 5:16 AM | 8:29 PM | 15 h 13 min |
| June | 4:55 AM | 8:58 PM | 16 h 2 min |
| July | 5:12 AM | 8:52 PM | 15 h 40 min |
| August | 5:51 AM | 8:11 PM | 14 h 19 min |
| September | 6:32 AM | 7:10 PM | 12 h 37 min |
| October | 7:14 AM | 6:10 PM | 10 h 55 min |
| November | 7:00 AM | 4:21 PM | 9 h 20 min |
| December | 7:36 AM | 4:06 PM | 8 h 30 min |
Times for the 15th of each month, local time (America/Denver).
What is the weather like in Sidney?
Sidney has a cold semi-arid climate. The warmest month is July, with an average high of 87°F (30°C), and the coldest is January, with average lows of 6°F (-14°C).
It gets about 15.5 inches (394 mm) of precipitation a year. The wettest month is June and the driest is February. Snow is common: about 30 inches fall in an average year.
The best time to visit Sidney is May–June and August–September. At 1,949 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 Sidney
Weather in towns near Sidney
Questions about the weather in Sidney
What is the hottest month in Sidney?
July, with an average high of 87°F (30°C).
What is the coldest month in Sidney?
January, with an average low of 6°F (-14°C).
How much does it rain in Sidney?
About 15.5 inches (394 mm) a year; the wettest month is June.
Does it snow in Sidney?
Yes, about 30 inches of snow fall in an average year.
When is the best time to visit Sidney?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does Sidney have?
Cold semi-arid (Köppen BSk).
What is the weather like in Sidney in November?
Highs average 42°F and lows 21°F, with about 0.6 inches of precipitation.
What time is sunrise in Sidney?
Around 7:00 AM in mid-November, and sunset around 4:21 PM. Today’s exact times are shown above.
Where does this Sidney weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Sidney.
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