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

GREENFIELDS (GFMT)

Lat: 47.65833°NLon: 111.8125°WElev: 3820.0ft.

49°F

9°C

Humidity	88%
Wind Speed	S 5 MPH
Barometer	NA
Dewpoint	46°F (8°C)
Visibility	NA
Wind Chill	47°F (8°C)
Last update	27 Jun 04:00 AM MDT

More Information:

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

Extended Forecast for

Fairfield MT

Overnight
Low: 47 °F
Chance
Showers
Saturday
High: 68 °F
Chance
Showers
Saturday Night
Low: 48 °F
Chance
Showers then
Rain
Sunday
High: 59 °F
Rain
Sunday Night
Low: 45 °F
Rain and
Breezy
Monday
High: 60 °F
Rain and
Breezy
Monday Night
Low: 45 °F
Showers
Likely then
Chance
Showers
Tuesday
High: 71 °F
Mostly Sunny
then Slight
Chance
T-storms
Tuesday Night
Low: 47 °F
Partly Cloudy

Detailed Forecast

Overnight

A 30 percent chance of showers. Mostly cloudy, with a low around 47. Southwest wind around 7 mph.

Saturday

A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 68. West southwest wind 6 to 8 mph becoming north northwest in the afternoon. Chance of precipitation is 40%.

Saturday Night

Rain and thunderstorms before 2am, then rain and possibly a thunderstorm between 2am and 3am, then rain after 3am. Low around 48. West northwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Rain. High near 59. West southwest wind 15 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 80%.

Sunday Night

Rain. Low around 45. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 80%.

Monday

Rain, with thunderstorms also possible after 3pm. High near 60. Breezy, with a west wind around 22 mph, with gusts as high as 33 mph. Chance of precipitation is 90%.

Monday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 45. Southwest wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

Tuesday

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71. Southwest wind around 11 mph, with gusts as high as 18 mph.

Tuesday Night

Partly cloudy, with a low around 47.

Wednesday

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74.

Wednesday Night

Partly cloudy, with a low around 47.

Thursday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 78.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 50.

Friday

A chance of showers and thunderstorms. Partly sunny, with a high near 77.