National Weather Service

News Headlines

This Saturday, June 27: Great Falls Disaster Response Expo - FREE and Family-Friendly Event, Great Falls College at MSU
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.

55°F

13°C

Humidity	49%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	36°F (2°C)
Visibility	NA
Last update	24 Jun 12:00 PM MDT

More Information:

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

Extended Forecast for

3 Miles NNW Neihart MT

This Afternoon
High: 64 °F
Chance
T-storms
Tonight
Low: 47 °F
Slight Chance
T-storms then
Partly Cloudy
Thursday
High: 64 °F
Showers
Thursday Night
Low: 49 °F
Chance
T-storms then
Chance
Showers
Friday
High: 65 °F
Slight Chance
Showers then
Showers
Friday Night
Low: 45 °F
Showers then
Chance
Showers
Saturday
High: 56 °F
Chance
Showers then
Showers
Saturday Night
Low: 40 °F
Showers
Sunday
High: 47 °F
Showers
Likely

Detailed Forecast

This Afternoon

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 64. North northeast wind 3 to 5 mph.

Tonight

A 20 percent chance of showers and thunderstorms before 9pm. Increasing clouds, with a low around 47. East northeast wind 5 to 7 mph becoming south southeast after midnight.

Thursday

Showers and possibly a thunderstorm. High near 64. South southeast wind around 5 mph becoming light and variable. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night

A chance of showers and thunderstorms before midnight, then a chance of showers between midnight and 1am. Mostly cloudy, with a low around 49. Light and variable wind. Chance of precipitation is 40%.

Friday

A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 65. Southwest wind 3 to 7 mph. Chance of precipitation is 80%.

Friday Night

Showers and possibly a thunderstorm. Low around 45. West southwest wind 3 to 6 mph. Chance of precipitation is 100%.

Saturday

A chance of showers, then showers and possibly a thunderstorm after noon. High near 56. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 80%.

Saturday Night

Showers and possibly a thunderstorm. Mostly cloudy, with a low around 40. West wind around 7 mph.

Sunday

Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 47.

Sunday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 38.

Monday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 52.

Monday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 42.

Tuesday

A chance of showers and thunderstorms. Partly sunny, with a high near 61.