As of 16:26 MST

Weather in Riverdale, MT

61°

Riverdale, Wednesday, 11 November, 16:26

Overcast. Feels like 59°. High 63°, low 41°.

Pressure30.09 inHg

Wind9.4 mph SW

Humidity46%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

Monthly outlook for Riverdale, MT: average high 47.6°, average low 32.8°. That is 3.2° above the climate normal for November. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 13 November (65.8°), the coolest 21 November (20.6°).

47.6°/32.8°

Average high / low

+3.2°

Above normal

4 / 3

Wet days / normal

1.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
11 November – 20 November	53°	43.6°	+5.2°
21 November – 30 November	38.7°	38°	+0.4°
1 December – 10 December	at normal	35.4°	—

November records over 66 years

71.8°1 November 2025All-time high

-27.2°28 November 1985All-time low

Climate normals and records are computed from the nearest reference point — Ulm (6 mi).

Thu, 1265° / 44°

65 °

Riverdale, Thursday, 12 November

Overcast. High 65°, low 44°.

Pressure29.91 inHg

Wind3.8 mph S

Humidity36%

Visibility6.2 mi

Dew point35°

Fri, 1366° / 32°

66 °

Riverdale, Friday, 13 November

Overcast. High 66°, low 32°.

Pressure29.56 inHg

Wind1.7 mph N

Humidity36%

Visibility6.2 mi

Dew point32°

Sat, 1460° / 38°

60 °

Riverdale, Saturday, 14 November

Clear. High 60°, low 38°.

Pressure29.59 inHg

Wind12.1 mph SW

Humidity38%

Visibility6.2 mi

Dew point34°

Sun, 1558° / 35°

58 °

Riverdale, Sunday, 15 November

Clear. High 58°, low 35°.

Pressure29.85 inHg

Wind8 mph SW

Humidity44%

Visibility6.2 mi

Dew point31°

Mon, 1655° / 34°

0.09

55 °

Riverdale, Monday, 16 November

Light rain. High 55°, low 34°.

Pressure29.88 inHg

Wind7.1 mph SW

Humidity55%

Visibility—

Dew point29°

Tue, 1750° / 40°

0.03

50 °

Riverdale, Tuesday, 17 November

Light rain. High 50°, low 40°.

Pressure29.97 inHg

Wind4.4 mph SE

Humidity56%

Visibility—

Dew point31°

Wed, 1841° / 36°

0.22

41 °

Riverdale, Wednesday, 18 November

Snow. High 41°, low 36°.

Pressure30.00 inHg

Wind4.6 mph NW

Humidity97%

Visibility—

Dew point36°

Thu, 1937° / 36°

0.32

37 °

Riverdale, Thursday, 19 November

Snow. High 37°, low 36°.

Pressure30.03 inHg

Wind3.8 mph NW

Humidity98%

Visibility—

Dew point36°

Fri, 2035° / 27°

0.37

35 °

Riverdale, Friday, 20 November

Snow. High 35°, low 27°.

Pressure30.30 inHg

Wind7.6 mph NW

Humidity99%

Visibility—

Dew point35°

Sat, 2130° / 21°

0.01

30 °

Riverdale, Saturday, 21 November

Light snow. High 30°, low 21°.

Pressure30.56 inHg

Wind5.9 mph S

Humidity82%

Visibility—

Dew point22°

Sun, 2237° / 21°

37 °

Riverdale, Sunday, 22 November

Overcast. High 37°, low 21°.

Pressure30.09 inHg

Wind8 mph SW

Humidity66%

Visibility—

Dew point20°

Mon, 2336° / 28°

36 °

Riverdale, Monday, 23 November

Overcast. High 36°, low 28°.

Pressure30.27 inHg

Wind5.5 mph SW

Humidity82%

Visibility—

Dew point29°

Tue, 2441° / 28°

41 °

Riverdale, Tuesday, 24 November

Overcast. High 41°, low 28°.

Pressure30.18 inHg

Wind7.1 mph S

Humidity67%

Visibility—

Dew point25°

Wed, 2543° / 30°

43 °

Riverdale, Wednesday, 25 November

Light rain. High 43°, low 30°.

Pressure30.06 inHg

Wind10.3 mph SW

Humidity65%

Visibility—

Dew point28°

Thu, 2646° / 35°

46 °

Riverdale, Thursday, 26 November

Overcast. High 46°, low 35°.

Pressure30.18 inHg

Wind8.5 mph SW

Humidity67%

Visibility—

Dew point32°

From day 17 onward the outlook is built from 60-year climate statistics

Fri, 2737° / 21°

0.03

37 °

Riverdale, Friday, 27 November

Climate normal for this date — 60-year average.

Average high37°

Average low21°

Average precipitation0.03 in

Chance of precipitation20%

Record high59° (2017)

Record low-22° (1985)

Sat, 2837° / 23°

0.04

37 °

Riverdale, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high37°

Average low23°

Average precipitation0.04 in

Chance of precipitation28%

Record high61° (2021)

Record low-27° (1985)

Sun, 2937° / 21°

0.02

37 °

Riverdale, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high37°

Average low21°

Average precipitation0.02 in

Chance of precipitation20%

Record high56° (2021)

Record low-23° (1985)

Mon, 3037° / 21°

0.02

37 °

Riverdale, Monday, 30 November

Climate normal for this date — 60-year average.

Average high37°

Average low21°

Average precipitation0.02 in

Chance of precipitation13%

Record high58° (1999)

Record low-15° (1975)

Tue, 0137° / 21°

0.03

37 °

Riverdale, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high37°

Average low21°

Average precipitation0.03 in

Chance of precipitation22%

Record high62° (2021)

Record low-19° (1985)

Wed, 0236° / 21°

0.06

36 °

Riverdale, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high36°

Average low21°

Average precipitation0.06 in

Chance of precipitation32%

Record high59° (2021)

Record low-27° (1985)

Thu, 0337° / 22°

0.02

37 °

Riverdale, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high37°

Average low22°

Average precipitation0.02 in

Chance of precipitation17%

Record high56° (1987)

Record low-11° (1972)

Fri, 0437° / 21°

0.02

37 °

Riverdale, Friday, 4 December

Climate normal for this date — 60-year average.

Average high37°

Average low21°

Average precipitation0.02 in

Chance of precipitation15%

Record high57° (1987)

Record low-28° (1972)

Sat, 0535° / 19°

0.03

35 °

Riverdale, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high35°

Average low19°

Average precipitation0.03 in

Chance of precipitation27%

Record high60° (2023)

Record low-22° (2013)

Sun, 0634° / 19°

0.04

34 °

Riverdale, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high34°

Average low19°

Average precipitation0.04 in

Chance of precipitation22%

Record high59° (2023)

Record low-32° (1972)

Mon, 0733° / 18°

0.01

33 °

Riverdale, Monday, 7 December

Climate normal for this date — 60-year average.

Average high33°

Average low18°

Average precipitation0.01 in

Chance of precipitation12%

Record high59° (2024)

Record low-22° (2013)

Tue, 0834° / 18°

0.02

34 °

Riverdale, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high34°

Average low18°

Average precipitation0.02 in

Chance of precipitation10%

Record high57° (2020)

Record low-35° (1972)

Wed, 0935° / 20°

0.02

35 °

Riverdale, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high35°

Average low20°

Average precipitation0.02 in

Chance of precipitation17%

Record high55° (1979)

Record low-26° (1977)

Thu, 1036° / 21°

0.02

36 °

Riverdale, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high36°

Average low21°

Average precipitation0.02 in

Chance of precipitation22%

Record high55° (2004)

Record low-19° (1961)

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 Riverdale, 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 Riverdale, 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.