National Weather Service

News Headlines

SCN26-50: Discontinuation of the State Forecast Product (SFP) for all NWS Central Region, Southern Region, and Western Region Offices: Effective June 29, 2026
The Regional Temperatures and Precipitation Product for the State of Montana (RTPMT) will now be discontinued on July 7, 2026.

Current conditions at

ONION PARK (ONPM8)

Lat: 46.91348°NLon: 110.8536°WElev: 7410.0ft.

56°F

13°C

Humidity	35%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	29°F (-2°C)
Visibility	NA
Last update	19 Jun 02:00 PM MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

2 Miles WNW Neihart MT

Tonight
Low: 45 °F
Partly Cloudy
Saturday
High: 72 °F
Mostly Sunny
then Chance
T-storms
Saturday Night
Low: 46 °F
Chance
T-storms then
Mostly Cloudy
Sunday
High: 64 °F
Mostly Sunny
then Chance
Showers
Sunday Night
Low: 41 °F
Chance
Showers
Monday
High: 56 °F
Slight Chance
Showers then
Chance
T-storms
Monday Night
Low: 39 °F
Mostly Clear
Tuesday
High: 67 °F
Sunny
Tuesday Night
Low: 44 °F
Mostly Clear

Detailed Forecast

Tonight

Partly cloudy, with a low around 45. Southeast wind 6 to 10 mph, with gusts as high as 23 mph.

Saturday

A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 72. Light and variable wind becoming west 5 to 7 mph in the morning.

Saturday Night

A 50 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46. West northwest wind around 6 mph becoming south southwest in the evening.

Sunday

A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 64. West northwest wind 3 to 8 mph. Winds could gust as high as 18 mph. Chance of precipitation is 30%.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 41. Northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 30%.

Monday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 56. Calm wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

Monday Night

Mostly clear, with a low around 39. North northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 21 mph.

Tuesday

Sunny, with a high near 67. Calm wind becoming north around 6 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 44.

Wednesday

Mostly sunny, with a high near 72.

Wednesday Night

Partly cloudy, with a low around 47.

Thursday

A chance of showers and thunderstorms. Mostly sunny, with a high near 75.