Harlowton, MT Weather Forecast

Local 7-day forecast

83°

Chance Showers And Thunderstorms

Track current conditions, temperature changes, wind, and the full daily outlook for Harlowton, MT in one place.

Wednesday, July 15, 2026

Wind: 9 mph N

Wednesday

A chance of showers and thunderstorms after 9am. Partly sunny. High near 83, with temperatures falling to around 81 in the afternoon. North wind around 9 mph. Chance of precipitation is 50%.

Local 7-day forecast

Local Weather Overview

This forecast page for Harlowton, MT is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 14, 2026 5:31 AM MDT.

The active forecast window currently covers Jul 15 to Jul 20, 2026 for Harlowton, MT.

Page Snapshot

Page focus: city weather
Forecast window: Jul 15 to Jul 20, 2026
Latest sync: Jul 14, 2026 5:31 AM MDT
Forecast office: BYZ
Source: NOAA / NWS

Next High

83°F

Wednesday

Next Low

59°F

Wednesday Night

Rain Outlook

Periods mentioning precipitation

Windiest

8 to 15 mph

Saturday Night

Daily Outlook

Today

Jul 15

Chance Showers And Thunderstorms

83 °F

/ 59°F

Wind 9 mph

Thu

Jul 16

Mostly Sunny then Chance Showers And Thunderstorms

86 °F

/ 59°F

Wind 5 to 10 mph

Fri

Jul 17

Mostly Sunny then Slight Chance Showers And Thunderstorms

91 °F

/ 60°F

Wind 3 to 13 mph

Sat

Jul 18

Mostly Sunny then Slight Chance Showers And Thunderstorms

91 °F

/ 60°F

Wind 8 to 12 mph

Sun

Jul 19

Mostly Sunny then Slight Chance Showers And Thunderstorms

90 °F

/ 59°F

Wind 6 to 12 mph

Mon

Jul 20

Mostly Sunny then Slight Chance Showers And Thunderstorms

88 °F

Wind 6 to 14 mph

This Week in Harlowton

Friday looks like the warmest upcoming period in Harlowton at 91 degrees F.

Wednesday Night is the coolest period ahead with temperatures near 59 degrees F.

The strongest winds are forecast for Saturday Night at about 8 to 15 mph NW.

Precipitation is mentioned in 11 upcoming forecast periods.

Forecast Details

Last updated: Jul 14, 2026 5:31 AM MDT
Coverage: 6 days
Time zone: America/Denver
Forecast office: BYZ
Radar station: KBLX

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Wednesday Night

Jul 15

59°F

Showers And Thunderstorms Likely

5 to 8 mph N

Showers and thunderstorms likely. Mostly cloudy, with a low around 59. North wind 5 to 8 mph. Chance of precipitation is 70%.

Thursday

Jul 16

86°F

Mostly Sunny then Chance Showers And Thunderstorms

5 to 10 mph NW

A chance of showers and thunderstorms between noon and 3pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 86. Northwest wind 5 to 10 mph. Chance of precipitation is 30%.

Thursday Night

Jul 16

59°F

Chance Showers And Thunderstorms then Partly Cloudy

3 to 12 mph E

A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59. East wind 3 to 12 mph. Chance of precipitation is 50%.

Friday

Jul 17

91°F

Mostly Sunny then Slight Chance Showers And Thunderstorms

3 to 13 mph S

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91. South wind 3 to 13 mph. Chance of precipitation is 20%.

Friday Night

Jul 17

60°F

Chance Showers And Thunderstorms then Mostly Cloudy

7 to 14 mph SW

A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60. Southwest wind 7 to 14 mph. Chance of precipitation is 40%.

Saturday

Jul 18

91°F

Mostly Sunny then Slight Chance Showers And Thunderstorms

8 to 12 mph NNW

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91. North northwest wind 8 to 12 mph. Chance of precipitation is 20%.

Saturday Night

Jul 18

60°F

Chance Showers And Thunderstorms then Mostly Cloudy

8 to 15 mph NW

A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60. Northwest wind 8 to 15 mph. Chance of precipitation is 40%.

Sunday

Jul 19

90°F

Mostly Sunny then Slight Chance Showers And Thunderstorms

6 to 12 mph WNW

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90. West northwest wind 6 to 12 mph. Chance of precipitation is 20%.

Sunday Night

Jul 19

59°F

Chance Showers And Thunderstorms then Mostly Cloudy

5 to 14 mph NNW

A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59. North northwest wind 5 to 14 mph. Chance of precipitation is 30%.

Monday

Jul 20

88°F

Mostly Sunny then Slight Chance Showers And Thunderstorms

6 to 14 mph NNE

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 88. North northeast wind 6 to 14 mph.

Detailed Forecast

Period	Conditions	Temp	Wind	Details
Wednesday Jul 15	Chance Showers And Thunderstorms	83°F	9 mph N	A chance of showers and thunderstorms after 9am. Partly sunny. High near 83, with temperatures falling to around 81 in t...
Wednesday Night Jul 15	Showers And Thunderstorms Likely	59°F	5 to 8 mph N	Showers and thunderstorms likely. Mostly cloudy, with a low around 59. North wind 5 to 8 mph. Chance of precipitation is...
Thursday Jul 16	Mostly Sunny then Chance Showers And Thunderstorms	86°F	5 to 10 mph NW	A chance of showers and thunderstorms between noon and 3pm, then a chance of showers and thunderstorms. Mostly sunny, wi...
Thursday Night Jul 16	Chance Showers And Thunderstorms then Partly Cloudy	59°F	3 to 12 mph E	A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59. East wind 3 to 12 mph. Chanc...
Friday Jul 17	Mostly Sunny then Slight Chance Showers And Thunderstorms	91°F	3 to 13 mph S	A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91. South wind 3 to 13 mph. Chan...
Friday Night Jul 17	Chance Showers And Thunderstorms then Mostly Cloudy	60°F	7 to 14 mph SW	A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60. Southwest wind 7 to 14 mph....
Saturday Jul 18	Mostly Sunny then Slight Chance Showers And Thunderstorms	91°F	8 to 12 mph NNW	A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91. North northwest wind 8 to 12...
Saturday Night Jul 18	Chance Showers And Thunderstorms then Mostly Cloudy	60°F	8 to 15 mph NW	A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60. Northwest wind 8 to 15 mph....
Sunday Jul 19	Mostly Sunny then Slight Chance Showers And Thunderstorms	90°F	6 to 12 mph WNW	A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90. West northwest wind 6 to 12...
Sunday Night Jul 19	Chance Showers And Thunderstorms then Mostly Cloudy	59°F	5 to 14 mph NNW	A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59. North northwest wind 5 to 14...
Monday Jul 20	Mostly Sunny then Slight Chance Showers And Thunderstorms	88°F	6 to 14 mph NNE	A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 88. North northeast wind 6 to 14...

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Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.