Waltham, MT
Unincorporated community in Chouteau County, Montana
Waltham is a small unincorporated community in Chouteau County, Montana. It is 6.0 miles E of Highwood, the nearest town. Its ZIP code is 59450.
Waltham at a glance
- State
- Montana
- County
- Chouteau County
- ZIP code
- 59450
- Nearest town
- Highwood (6.0 mi)
- Time zone
- America/Denver
- Coordinates
- 47.5697, -110.8900
Weather in Waltham now
Loading the National Weather Service forecast…
Waltham weather by the hour
Waltham weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Waltham.
This week in Waltham
Sunrise, sunset and moon in Waltham
What is the weather usually like in Waltham?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 85°F average high
- Januarycoldest month · 17°F average low
- 15.1 inprecipitation per year · 384 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Waltham: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station HIGHWOOD 7 NE, MT US (USC00244133), adjusted for the elevation of Waltham.
Waltham weather month by month
Sunrise and sunset in Waltham through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 8:04 AM | 5:01 PM | 8 h 56 min |
| February | 7:26 AM | 5:48 PM | 10 h 21 min |
| March | 7:34 AM | 7:30 PM | 11 h 56 min |
| April | 6:32 AM | 8:14 PM | 13 h 42 min |
| May | 5:43 AM | 8:55 PM | 15 h 12 min |
| June | 5:23 AM | 9:24 PM | 16 h 1 min |
| July | 5:40 AM | 9:19 PM | 15 h 38 min |
| August | 6:18 AM | 8:37 PM | 14 h 19 min |
| September | 6:59 AM | 7:37 PM | 12 h 37 min |
| October | 7:41 AM | 6:37 PM | 10 h 55 min |
| November | 7:27 AM | 4:49 PM | 9 h 21 min |
| December | 8:03 AM | 4:34 PM | 8 h 31 min |
Times for the 15th of each month, local time (America/Denver).
What is the weather like in Waltham?
Waltham has a cold semi-arid climate. The warmest month is July, with an average high of 85°F (30°C), and the coldest is January, with average lows of 17°F (-8°C).
It gets about 15.1 inches (384 mm) of precipitation a year. The wettest month is June and the driest is February.
The best time to visit Waltham is June to September. 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.
Webcams near Waltham
The closest live webcam is Great Falls, 19.3 miles W of Waltham.
Webcams: Windy.com. Distances in a straight line from Waltham.
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Map of Waltham, MT
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Waltham Street View
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Questions about Waltham
Where is Waltham, MT?
Waltham is an unincorporated community in Chouteau County, Montana, 6.0 miles E of Highwood.
What county is Waltham in?
Waltham is in Chouteau County, Montana.
What is the ZIP code of Waltham, MT?
The ZIP code for Waltham is 59450.
What is the nearest town to Waltham?
Highwood, 6.0 miles away.
Are there webcams near Waltham?
Yes. The closest is Great Falls, 19.3 miles away.
What is the hottest month in Waltham?
July, with an average high of 85°F (30°C).
What is the coldest month in Waltham?
January, with an average low of 17°F (-8°C).
How much does it rain in Waltham?
About 15.1 inches (384 mm) a year; the wettest month is June.
Does it snow in Waltham?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Waltham?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Waltham have?
Cold semi-arid (Köppen BSk).
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