Observed 5:55 PM MDT at KGFA

Fort Benton, MT weather

Mostly sunny and 35°2°, 13°7° colder than usual, freeze watch tonight, low 24°−4°.

Mostly agree

Now 35°2°

Mostly sunny · Feels like 31°−1°

Wind: 5 mph8 km/h; From the south-southeast. Up to 5 mph8 km/h through 6 AM
Dew point: 28°−2°; Dry, static shocks likely
UV tomorrow: 3Moderate; Moderate 12–4 PM · peak 3
Pressure: 30.17 inHg1022 hPa; Rising slowly · +0.02 inHg+0.8 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Hard freeze tonight 11 PM–11 AM (low 24°−4°)
Fog tomorrow 7–8 AM
Above 30°−1° tomorrow by 10 AM
High 46°8° tomorrow at 3 PM
Hard freeze tomorrow night midnight–10 AM (low 26°−3°)

TonightDown to 26°−3° by 5 AM · freezing, low 26°−3° · Clear
Tomorrow morningUp to 35°2° by 11 AM · freezing, low 24°−4° · Partly cloudy
Tomorrow afternoonUp to 46°8° by 3 PM · Partly cloudy
Tomorrow nightDown to 27°−3° by 4 AM · freezing, low 27°−3° · Mostly cloudy
Monday morningUp to 39°4° by 11 AM · freezing, low 26°−3° · Mostly cloudy
Monday afternoonUp to 51°11° by 3 PM · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 6p	Clear	43°6° (likely 36°2° to 43°6°)	40°4°	0%	5 mph8 km/h from ENE, gusts 9 mph14 km/h	58%	0%	0
Sat 7p	Clear	40°4° (likely 34°1° to 40°4°)	37°3°	0%	5 mph8 km/h from ENE, gusts 7 mph12 km/h	66%	1%	0
Sat 8p	Partly cloudy	38°3° (likely 32°0° to 38°3°)	34°1°	0%	5 mph8 km/h from ENE, gusts 7 mph11 km/h	72%	28%	0
Sat 9p	Mostly clear	35°2° (likely 31°−1° to 35°2°)	31°−1°	0%	5 mph8 km/h from NE, gusts 7 mph11 km/h	74%	25%	0
Sat 10p	Partly cloudy	34°1° (likely 31°−1° to 34°1°)	31°−1°	0%	3 mph5 km/h from NE, gusts 5 mph9 km/h	78%	54%	0
Sat 11p	Mostly clear	32°0° (likely 30°−1° to 33°1°)	29°−2°	0%	3 mph5 km/h from NE, gusts 7 mph11 km/h	81%	35%	0
Sun 12a	Clear	31°−1° (likely 29°−2° to 33°1°)	28°−2°	0%	3 mph5 km/h from NE, gusts 6 mph10 km/h	84%	7%	0
Sun 1a	Clear	30°−1° (likely 28°−2° to 33°1°)	26°−3°	0%	3 mph5 km/h from NE, gusts 6 mph9 km/h	88%	6%	0
Sun 2a	Clear	28°−2° (likely 27°−3° to 33°1°)	28°−2°	0%	2 mph3 km/h from NE, gusts 5 mph8 km/h	90%	7%	0
Sun 3a	Clear	28°−2° (likely 26°−3° to 32°0°)	28°−2°	0%	2 mph3 km/h from NE, gusts 5 mph8 km/h	92%	6%	0
Sun 4a	Clear	27°−3° (likely 26°−3° to 32°0°)	27°−3°	0%	2 mph3 km/h from NE, gusts 5 mph8 km/h	93%	10%	0
Sun 5a	Clear	26°−3° (likely 26°−3° to 32°0°)	26°−3°	0%	2 mph3 km/h from NE, gusts 8 mph12 km/h	94%	20%	0
Sun 6a	Clear	26°−3° (likely 26°−3° to 32°0°)	26°−3°	0%	2 mph3 km/h from NE, gusts 6 mph10 km/h	94%	25%	0
Sun 7a	Fog	25°−4° (likely 25°−4° to 32°0°)	25°−4°	0%	2 mph3 km/h from NE, gusts 5 mph8 km/h	95%	46%	0
Sun 8a	Cloudy	24°−4° (likely 24°−4° to 32°0°)	24°−4°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	95%	59%	0
Sun 9a	Partly sunny	26°−3° (likely 26°−3° to 33°1°)	26°−3°	0%	2 mph3 km/h from SSE, gusts 5 mph8 km/h	92%	57%	0
Sun 10a	Partly sunny	31°−1° (likely 29°−2° to 36°2°)	28°−2°	0%	3 mph5 km/h from ESE, gusts 11 mph17 km/h	83%	54%	1
Sun 11a	Partly sunny	35°2° (likely 32°0° to 38°3°)	30°−1°	0%	6 mph10 km/h from ESE, gusts 11 mph17 km/h	75%	49%	2
Sun 12p	Sunny	38°3° (likely 35°2° to 40°4°)	32°0°	0%	8 mph13 km/h from E, gusts 13 mph21 km/h	67%	43%	3
Sun 1p	Mostly sunny	41°5° (likely 37°3° to 41°5°)	35°2°	0%	9 mph14 km/h from E, gusts 14 mph23 km/h	62%	47%	3
Sun 2p	Mostly sunny	44°7° (likely 38°3° to 44°7°)	38°3°	0%	10 mph16 km/h from E, gusts 15 mph25 km/h	55%	44%	3
Sun 3p	Mostly sunny	46°8° (likely 39°4° to 46°8°)	41°5°	0%	10 mph16 km/h from E, gusts 16 mph25 km/h	51%	50%	3
Sun 4p	Mostly sunny	46°8° (likely 39°4° to 46°8°)	41°5°	0%	10 mph16 km/h from E, gusts 15 mph24 km/h	51%	60%	2
Sun 5p	Mostly sunny	46°8° (likely 39°4° to 46°8°)	41°5°	0%	9 mph14 km/h from E, gusts 15 mph25 km/h	51%	60%	1
Sun 6p	Mostly cloudy	42°6° (likely 36°2° to 42°6°)	37°3°	0%	8 mph13 km/h from E, gusts 14 mph22 km/h	59%	59%	0
Sun 7p	Mostly cloudy	40°4° (likely 34°1° to 40°4°)	35°2°	0%	8 mph13 km/h from E, gusts 10 mph17 km/h	64%	57%	0
Sun 8p	Mostly cloudy	38°3° (likely 33°1° to 38°3°)	32°0°	0%	8 mph13 km/h from E, gusts 10 mph17 km/h	69%	66%	0
Sun 9p	Mostly cloudy	35°2° (likely 32°0° to 37°3°)	28°−2°	0%	8 mph13 km/h from E, gusts 11 mph18 km/h	72%	65%	0
Sun 10p	Mostly cloudy	34°1° (likely 31°−1° to 36°2°)	27°−3°	0%	8 mph13 km/h from E, gusts 12 mph19 km/h	74%	57%	0
Sun 11p	Mostly cloudy	33°1° (likely 30°−1° to 35°2°)	26°−3°	0%	8 mph13 km/h from E, gusts 11 mph18 km/h	77%	64%	0
Mon 12a	Cloudy	32°0° (likely 29°−2° to 35°2°)	26°−3°	0%	6 mph10 km/h from E, gusts 11 mph17 km/h	80%	74%	0
Mon 1a	Cloudy	31°−1° (likely 27°−3° to 34°1°)	25°−4°	0%	6 mph10 km/h from E, gusts 10 mph17 km/h	84%	76%	0
Mon 2a	Mostly cloudy	30°−1° (likely 26°−3° to 34°1°)	24°−4°	0%	6 mph10 km/h from E, gusts 8 mph13 km/h	86%	66%	0
Mon 3a	Partly cloudy	28°−2° (likely 25°−4° to 33°1°)	24°−4°	0%	3 mph5 km/h from ESE, gusts 6 mph9 km/h	88%	68%	0
Mon 4a	Partly cloudy	27°−3° (likely 24°−4° to 33°1°)	23°−5°	0%	3 mph5 km/h from ESE, gusts 5 mph8 km/h	90%	71%	0
Mon 5a	Partly cloudy	27°−3° (likely 24°−4° to 33°1°)	23°−5°	0%	3 mph5 km/h from ESE, gusts 4 mph6 km/h	92%	71%	0
Mon 6a	Cloudy	26°−3° (likely 23°−5° to 33°1°)	22°−6°	0%	3 mph5 km/h from ESE, gusts 4 mph6 km/h	93%	64%	0
Mon 7a	Partly cloudy	27°−3° (likely 23°−5° to 33°1°)	23°−5°	0%	3 mph5 km/h from ESE, gusts 4 mph6 km/h	93%	76%	0
Mon 8a	Partly sunny	27°−3° (likely 22°−6° to 33°1°)	23°−5°	0%	3 mph5 km/h from ESE, gusts 5 mph8 km/h	93%	74%	0
Mon 9a	Mostly cloudy	29°−2° (likely 24°−4° to 33°1°)	25°−4°	0%	3 mph5 km/h from SE, gusts 5 mph9 km/h	91%	67%	0
Mon 10a	Mostly cloudy	33°1° (likely 28°−2° to 36°2°)	30°−1°	0%	3 mph5 km/h from SE, gusts 9 mph14 km/h	86%	50%	1
Mon 11a	Mostly cloudy	39°4° (likely 33°1° to 39°4°)	37°3°	0%	3 mph5 km/h from SE, gusts 11 mph18 km/h	78%	50%	2
Mon 12p	Cloudy	43°6° (likely 38°3° to 43°6°)	39°4°	0%	6 mph10 km/h from ESE, gusts 11 mph18 km/h	71%	51%	3
Mon 1p	Partly sunny	47°8° (likely 44°7° to 47°8°)	44°7°	0%	6 mph10 km/h from ESE, gusts 14 mph22 km/h	65%	27%	3
Mon 2p	Partly sunny	50°10° (likely 46°8° to 50°10°)	48°9°	0%	6 mph10 km/h from ESE, gusts 15 mph24 km/h	59%	32%	3
Mon 3p	Partly sunny	51°11° (likely 48°9° to 52°11°)	51°11°	0%	9 mph14 km/h from ESE, gusts 16 mph26 km/h	57%	43%	3
Mon 4p	Partly sunny	51°11° (likely 49°9° to 52°11°)	51°11°	0%	9 mph14 km/h from ESE, gusts 16 mph26 km/h	58%	53%	2
Mon 5p	Partly sunny	49°9° (likely 48°9° to 52°11°)	45°7°	0%	9 mph14 km/h from ESE, gusts 15 mph24 km/h	62%	66%	1

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Cloudy. High 43°6°, low 24°−4°. Typical 56°13° / 27°−3°. Dry. Mostly agree.
1. Evening
  6 PM–midnight
  Mostly clear, 38°3°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 26°−3°
  Dry
Official NWS forecast
Tonight: Patchy fog after 3am. Partly cloudy, with a low around 24. Northeast wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
41°5°–45°7°
Low, likely
24°−4°–29°−2°
Typical high / low
56°13° / 27°−3°
Wind
12 mph19 km/h, gusts 20 mph33 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 46°8°, low 25°−4°. Typical 55°13° / 27°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 24°−4°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 46°8°
  Dry
3. Evening
  6 PM–midnight
  Mostly cloudy, 38°3°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 27°−3°
  Dry
Official NWS forecast
Day: Areas of fog before 10am. Mostly sunny, with a high near 46. East wind 2 to 10 mph, with gusts as high as 18 mph.
Night: Mostly cloudy, with a low around 25. East wind 3 to 8 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
39°4°–46°8°
Low, likely
25°−4°–32°0°
Typical high / low
55°13° / 27°−3°
Wind
14 mph22 km/h, gusts 22 mph36 km/h
UV peak
3
Monday, Oct 26. Partly sunny. High 51°11°, low 29°−2°. Typical 55°13° / 26°−3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly cloudy, 27°−3°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 51°11°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 42°5°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 34°1°
  20% chance · 0.03 in0.7 mm
Official NWS forecast
Day: Mostly sunny, with a high near 51. East southeast wind 3 to 9 mph.
Night: A slight chance of rain after midnight. Mostly cloudy, with a low around 29. East southeast wind 3 to 10 mph. Chance of precipitation is 20%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
44°7°–52°11°
Low, likely
21°−6°–32°0°
Typical high / low
55°13° / 26°−3°
Wind
14 mph22 km/h, gusts 23 mph37 km/h
UV peak
3
Tuesday, Oct 27. Rain. High 52°11°, low 32°0°. Typical 54°12° / 26°−3°. Rain 0.14 in3.6 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 37°3°
  30% chance · 0.05 in1.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 49°9°
  30% chance · 0.05 in1.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 45°7°
  30% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Cloudy, 41°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 52. Southwest wind 3 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Night: A slight chance of rain before midnight. Mostly cloudy, with a low around 32. West southwest wind 12 to 15 mph, with gusts as high as 23 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
46°8°–53°12°
Low, likely
30°−1°–37°3°
Typical high / low
54°12° / 26°−3°
Wind
23 mph37 km/h, gusts 34 mph55 km/h
UV peak
1
Wednesday, Oct 28. Mostly cloudy. High 51°11°, low 27°−3°. Typical 54°12° / 26°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 53°12°
  Dry
3. Evening
  6 PM–midnight
  Clear, 42°6°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 32°0°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 51. West wind 7 to 10 mph.
Night: Partly cloudy, with a low around 27.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
50°10°–56°13°
Low, likely
27°−3°–40°4°
Typical high / low
54°12° / 26°−3°
Wind
18 mph29 km/h, gusts 30 mph48 km/h
UV peak
3
Thursday, Oct 29. Snow. High 44°7°, low 25°−4°. Typical 53°12° / 25°−4°. Snow 0.02 in0.5 mm, 10% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 31°−1°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 41°5°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 37°3°
  30% chance
4. Overnight
  midnight–6 AM
  Snow, 32°0°
  40% chance · 0.2 in0.4 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 44.
Night: A chance of rain and snow. Mostly cloudy, with a low around 25.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
39°4°–46°8°
Low, likely
25°−4°–34°1°
Typical high / low
53°12° / 25°−4°
Wind
13 mph20 km/h, gusts 22 mph36 km/h
UV peak
2
Friday, Oct 30. Snow. High 44°7°, low 25°−4°. Typical 53°12° / 25°−4°. Snow 0–1 in0–3 cm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 32°0°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 40°5°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 35°2°
  20% chance
4. Overnight
  midnight–6 AM
  Cloudy, 30°−1°
  20% chance · 0.01 in0.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of snow before noon. Partly sunny, with a high near 44. Little or no snow accumulation expected.
Night: A chance of rain and snow before midnight. Mostly cloudy, with a low around 25. Little or no snow accumulation expected.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
34°1°–44°7°
Low, likely
25°−4°–33°1°
Typical high / low
53°12° / 25°−4°
Wind
21 mph33 km/h, gusts 34 mph54 km/h
UV peak
3
Saturday, Oct 31. Mostly cloudy. High 47°8°, low 30°−1°. Typical 52°11° / 25°−4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 31°−1°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 44°7°
  Dry
3. Evening
  6 PM–midnight
  Clear, 42°5°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 39°4°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 47.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
39°4°–57°14°
Low, likely
14°−10°–38°3°
Typical high / low
52°11° / 25°−4°
Wind
18 mph29 km/h, gusts 38 mph62 km/h
UV peak
3
Sunday, Nov 1. Mostly sunny. High 49°9°, low 35°2°. Typical 52°11° / 24°−4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 42°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 50°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 44°7°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 41°5°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
43°6°–55°13°
Low, likely
32°0°–42°6°
Typical high / low
52°11° / 24°−4°
Wind
24 mph38 km/h, gusts 42 mph67 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 52°11°, low 36°2°. Typical 52°11° / 24°−4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 53°12°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 43°6°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
45°7°–59°15°
Low, likely
30°−1°–41°5°
Typical high / low
52°11° / 24°−4°
Wind
36 mph58 km/h, gusts 66 mph106 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 43°, low 24°.
Tomorrow
Dry, high 46°, low 25°, warming up.
Monday
Dry, high 51°, low 29°, warming up.
Rest of week
Mostly dry, highs 44–52°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (TFX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Missouri River at Fort Benton

1.0 mi

Below flood stage

Level: 2.1 ft
Flow: 4,670 cfs

Reading from Sat 4:30 PM · NWS gauge page

Marias River near Loma

8.8 mi

Level: 1.2 ft
Flow: 493 cfs

Reading from Sat 5:15 PM · NWS gauge page

Teton River at Loma

9.7 mi

Level: 2.3 ft
Flow: 484 cfs

Reading from Sat 4:30 PM · NWS gauge page

Missouri River at Virgelle

22 mi

Below flood stage

Level: 3.1 ft
Flow: 5,260 cfs

Reading from Sat 5 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Pipes: watch the cold

Tonight’s low: 24°−4°

Overnight low near 24°F — not yet at drip-the-faucets cold, but worth watching if it's forecast to drop further.

Heating this week

About 66% less heating than a typical week.

This week 59Typical 174

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 43
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 12 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 28°F).

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

Fort Benton · official normals 1991–2020 · records 1894–2026

Oct 24, today vs a typical year

Today’s expected high is 13°7° colder than typical.

Last 7 days vs normal

On average 5°3° warmer than normal (daily mean temperature).

+4°+2°MonOct 19
+8°+4°TueOct 20
+4°+2°WedOct 21
+10°+5°ThuOct 22
+13°+7°FriOct 23
−4°−2°SatOct 24
—SunOct 25

Fort Benton weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 22 min; Losing 3 min 12 s a day; shortest Dec 21, 1 h 59 min less
Golden hour: 5:33–6:37 PM; Morning 7:35–8:39 AM
Blue hour: 6:37–6:49 PM; Morning 7:23–7:35 AM; first light 7:23 AM

Stars tonight? Fair

Mostly clear 12–6 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 6:08 AM · rises 5:18 PM
Full moon: Oct 25
New moon: Nov 9

Looking south from Fort Benton. The highest point on the skyline is about 7,500 ft, 27 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.