Manhattan, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Manhattan, a town in Gallatin County, Montana.
Today
78°F
Patchy Smoke
Patchy smoke after 10am. Sunny, with a high near 78. West northwest wind 1 to 5 mph.
7-day forecast for Manhattan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Patchy Smoke | 1 to 5 mph WNW | 0% |
| Tonight | 45°F | Patchy Smoke | 2 to 6 mph ENE | 0% |
| Wednesday | 85°F | Patchy Smoke | 2 mph SW | 0% |
| Wednesday Night | 49°F | Patchy Smoke then Mostly Clear | 5 mph E | 0% |
| Thursday | 93°F | Sunny | 1 to 5 mph SW | 0% |
| Thursday Night | 54°F | Mostly Clear | 2 to 8 mph E | 0% |
| Friday | 97°F | Sunny | 1 to 15 mph S | 0% |
| Friday Night | 55°F | Mostly Clear | 2 to 18 mph NNE | 0% |
| Saturday | 94°F | Sunny | 0 to 8 mph WNW | 0% |
| Saturday Night | 55°F | Partly Cloudy | 2 to 13 mph NE | 2% |
| Sunday | 92°F | Sunny | 0 to 5 mph N | 1% |
| Sunday Night | 54°F | Partly Cloudy | 3 to 9 mph NE | 5% |
| Monday | 91°F | Sunny | 1 to 5 mph N | 1% |
| Monday Night | 54°F | Partly Cloudy | 3 to 8 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Manhattan (45.859, -111.330). Updated through the day.
Growing snapshot for Manhattan
Last spring frost
May 26
First fall frost
Sep 15
Growing season
111 days
Hardiness zone
5a
More local growing data for Manhattan: nearby ZIP 59741 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Amsterdam
Belgrade
Bozeman
Bridger
Churchill
Four Corners
Gallatin Gateway
Gallatin River Ranch
Hebgen Lake Estates
King Arthur Park
Logan
Ponderosa Pines
Springhill
Three Forks
West Yellowstone
Wheatland
Willow Creek
Climate data from the nearest NOAA station, Logan Landfill, Mt (7.6 mi from Manhattan). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.