As of 15:43 MDT

Weather in Rochester, MT

45°

Rochester, Thursday, 15 October, 15:43

Clear. Feels like 45°. High 45°, low 27°.

Pressure30.62 inHg

Wind1.2 mph S

Humidity63%

Visibility6.2 mi

Dew point33°

See detailed hourly forecast

Fri, 1654° / 27°

54 °

Rochester, Friday, 16 October

Partly cloudy. High 54°, low 27°.

Pressure30.53 inHg

Wind3.1 mph S

Humidity55%

Visibility6.2 mi

Dew point23°

Sat, 1756° / 35°

56 °

Rochester, Saturday, 17 October

Overcast. High 56°, low 35°.

Pressure30.21 inHg

Wind5.2 mph S

Humidity52%

Visibility6.2 mi

Dew point27°

Sun, 1856° / 40°

56 °

Rochester, Sunday, 18 October

Clear. High 56°, low 40°.

Pressure30.09 inHg

Wind5 mph S

Humidity55%

Visibility6.2 mi

Dew point32°

Mon, 1958° / 43°

58 °

Rochester, Monday, 19 October

Partly cloudy. High 58°, low 43°.

Pressure29.94 inHg

Wind5.9 mph S

Humidity49%

Visibility6.2 mi

Dew point32°

Tue, 2059° / 45°

59 °

Rochester, Tuesday, 20 October

Overcast. High 59°, low 45°.

Pressure29.97 inHg

Wind6.8 mph S

Humidity54%

Visibility—

Dew point38°

Wed, 2152° / 44°

52 °

Rochester, Wednesday, 21 October

Light rain. High 52°, low 44°.

Pressure29.94 inHg

Wind9.7 mph S

Humidity67%

Visibility—

Dew point39°

Thu, 2247° / 37°

0.48

47 °

Rochester, Thursday, 22 October

Rain. High 47°, low 37°.

Pressure29.80 inHg

Wind7.8 mph S

Humidity76%

Visibility—

Dew point38°

Fri, 2341° / 34°

0.28

41 °

Rochester, Friday, 23 October

Light rain. High 41°, low 34°.

Pressure29.97 inHg

Wind6.2 mph N

Humidity69%

Visibility—

Dew point31°

Sat, 2437° / 27°

37 °

Rochester, Saturday, 24 October

Overcast. High 37°, low 27°.

Pressure30.39 inHg

Wind7.8 mph N

Humidity65%

Visibility—

Dew point23°

Sun, 2541° / 23°

41 °

Rochester, Sunday, 25 October

Clear. High 41°, low 23°.

Pressure30.42 inHg

Wind4.1 mph NW

Humidity58%

Visibility—

Dew point21°

Mon, 2645° / 24°

45 °

Rochester, Monday, 26 October

Mostly clear. High 45°, low 24°.

Pressure30.15 inHg

Wind6.9 mph S

Humidity43%

Visibility—

Dew point16°

Tue, 2747° / 34°

47 °

Rochester, Tuesday, 27 October

Overcast. High 47°, low 34°.

Pressure30.03 inHg

Wind10.2 mph S

Humidity47%

Visibility—

Dew point22°

Wed, 2848° / 33°

48 °

Rochester, Wednesday, 28 October

Overcast. High 48°, low 33°.

Pressure30.03 inHg

Wind18.7 mph W

Humidity60%

Visibility—

Dew point32°

Thu, 2950° / 27°

50 °

Rochester, Thursday, 29 October

Clear. High 50°, low 27°.

Pressure30.33 inHg

Wind6.1 mph S

Humidity38%

Visibility—

Dew point15°

Fri, 3049° / 30°

49 °

Rochester, Friday, 30 October

Clear. High 49°, low 30°.

Pressure30.27 inHg

Wind5.5 mph S

Humidity34%

Visibility—

Dew point15°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Rochester, MT are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Rochester, MT since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.