Observed 2:00 AM MDT at KGDV

Fallon, MT weather

Overcast and 39°4°, gusts to 35 mph57 km/h today.

Forecasts agree

Now 39°4°

Cloudy

Feels like: 29°−2°; Wind chill from 23 mph37 km/h wind · air 39°4°
Wind: 23 mph37 km/hgusts 37 mph59 km/h; From the west-northwest. Easing to 13 mph21 km/h by 7 AM
Dew point: 34°1°; Dry · down to 25°−4° by 5 AM
UV index: 0Low; Moderate 12–4 PM · peak 3
Pressure (notable): 30.13 inHg1020 hPa; Rising fast · +0.12 inHg+4.1 hPa next 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

14°8° cooler than this time yesterday (52°11° then, 38°3° now)

Good hours for

Gusts to 37 mph60 km/h until 7 AM
Hard freeze today 5–10 AM (low 28°−2°)
Above 40°4° today by 11 AM
Below 40°4° tonight after 8 PM
Hard freeze tonight 11 PM–10 AM (low 24°−4°)

TonightDown to 31°−1° by 5 AM · rain chance 20% · freezing, low 31°−1° · gusts to 37 mph60 km/h · Mostly cloudy
This morningUp to 40°4° by 11 AM · freezing, low 28°−2° · gusts to 25 mph40 km/h · Clear
This afternoonUp to 51°11° by 4 PM · Clear
TonightDown to 25°−4° by 5 AM · freezing, low 25°−4° · Clear
Tomorrow morningUp to 42°6° by 11 AM · freezing, low 24°−4° · Clear
Tomorrow afternoonUp to 54°12° by 4 PM · Partly cloudy
Tomorrow nightDown to 34°1° by 1 AM · rain chance 20% · 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 2a	Cloudy	35°2° (likely 35°2° to 41°5°)	23°−5°	20%	23 mph37 km/h from WNW, gusts 37 mph59 km/h	91%	91%	0
Sat 3a	Cloudy	34°1° (likely 34°1° to 41°5°)	22°−6°	0%	21 mph34 km/h from WNW, gusts 35 mph57 km/h	87%	67%	0
Sat 4a	Cloudy	34°1° (likely 34°1° to 40°4°)	22°−6°	0%	21 mph34 km/h from WNW, gusts 33 mph53 km/h	81%	69%	0
Sat 5a	Cloudy	31°−1° (likely 31°−1° to 39°4°)	20°−7°	0%	17 mph27 km/h from WNW, gusts 29 mph47 km/h	79%	67%	0
Sat 6a	Cloudy	31°−1° (likely 31°−1° to 39°4°)	20°−7°	0%	15 mph24 km/h from WNW, gusts 25 mph41 km/h	79%	65%	0
Sat 7a	Mostly clear	29°−2° (likely 29°−2° to 38°3°)	19°−7°	0%	13 mph21 km/h from WNW, gusts 21 mph34 km/h	82%	26%	0
Sat 8a	Sunny	28°−2° (likely 28°−2° to 36°2°)	19°−7°	0%	10 mph16 km/h from WNW, gusts 18 mph29 km/h	85%	12%	0
Sat 9a	Mostly sunny	31°−1° (likely 31°−1° to 37°3°)	22°−6°	0%	10 mph16 km/h from W, gusts 18 mph29 km/h	83%	12%	1
Sat 10a	Sunny	36°2° (likely 36°2° to 40°4°)	29°−2°	0%	10 mph16 km/h from W, gusts 20 mph32 km/h	77%	11%	1
Sat 11a	Sunny	40°4° (likely 40°4° to 43°6°)	33°1°	0%	12 mph19 km/h from W, gusts 20 mph31 km/h	66%	3%	2
Sat 12p	Sunny	44°7° (likely 44°7° to 46°8°)	38°3°	0%	10 mph16 km/h from W, gusts 18 mph28 km/h	55%	0%	3
Sat 1p	Sunny	48°9° (likely 47°8° to 48°9°)	43°6°	0%	10 mph16 km/h from W, gusts 16 mph26 km/h	46%	0%	3
Sat 2p	Sunny	49°9° (likely 48°9° to 50°10°)	45°7°	0%	9 mph14 km/h from W, gusts 13 mph22 km/h	41%	0%	3
Sat 3p	Sunny	50°10° (likely 49°9° to 51°11°)	47°8°	0%	8 mph13 km/h from W, gusts 11 mph18 km/h	37%	0%	3
Sat 4p	Sunny	51°11° (likely 50°10° to 51°11°)	51°11°	0%	6 mph10 km/h from W, gusts 10 mph16 km/h	37%	0%	2
Sat 5p	Sunny	49°9° (likely 48°9° to 50°10°)	47°8°	0%	5 mph8 km/h from W, gusts 9 mph15 km/h	38%	0%	1
Sat 6p	Clear	46°8° (likely 45°7° to 46°8°)	46°8°	0%	2 mph3 km/h from W, gusts 6 mph10 km/h	46%	0%	0
Sat 7p	Clear	42°6° (likely 42°6° to 43°6°)	42°6°	0%	1 mph2 km/h from WSW, gusts 3 mph4 km/h	55%	0%	0
Sat 8p	Clear	38°3° (likely 38°3° to 41°5°)	38°3°	0%	1 mph2 km/h from S, gusts 6 mph9 km/h	60%	0%	0
Sat 9p	Clear	35°2° (likely 35°2° to 40°4°)	35°2°	0%	2 mph3 km/h from ESE, gusts 4 mph7 km/h	66%	0%	0
Sat 10p	Clear	34°1° (likely 34°1° to 38°3°)	34°1°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	68%	0%	0
Sat 11p	Clear	32°0° (likely 32°0° to 37°3°)	32°0°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	70%	0%	0
Sun 12a	Clear	30°−1° (likely 30°−1° to 36°2°)	30°−1°	0%	2 mph3 km/h from E, gusts 5 mph7 km/h	76%	0%	0
Sun 1a	Clear	28°−2° (likely 28°−2° to 35°2°)	28°−2°	0%	2 mph3 km/h from ENE, gusts 5 mph8 km/h	77%	0%	0
Sun 2a	Clear	27°−3° (likely 27°−3° to 35°2°)	23°−5°	0%	3 mph5 km/h from ENE, gusts 5 mph8 km/h	79%	0%	0
Sun 3a	Clear	27°−3° (likely 27°−3° to 34°1°)	23°−5°	0%	3 mph5 km/h from ENE, gusts 7 mph12 km/h	80%	0%	0
Sun 4a	Clear	26°−3° (likely 26°−3° to 34°1°)	20°−7°	0%	5 mph8 km/h from ENE, gusts 8 mph13 km/h	80%	0%	0
Sun 5a	Clear	25°−4° (likely 25°−4° to 33°1°)	19°−7°	0%	5 mph8 km/h from ENE, gusts 9 mph14 km/h	81%	0%	0
Sun 6a	Clear	25°−4° (likely 25°−4° to 33°1°)	18°−8°	0%	6 mph10 km/h from ENE, gusts 9 mph14 km/h	82%	0%	0
Sun 7a	Clear	24°−4° (likely 24°−4° to 33°1°)	17°−8°	0%	6 mph10 km/h from ENE, gusts 9 mph15 km/h	82%	3%	0
Sun 8a	Sunny	24°−4° (likely 24°−4° to 34°1°)	17°−8°	0%	6 mph10 km/h from ENE, gusts 10 mph16 km/h	82%	1%	0
Sun 9a	Sunny	29°−2° (likely 29°−2° to 37°3°)	20°−7°	0%	9 mph14 km/h from ENE, gusts 14 mph22 km/h	78%	0%	1
Sun 10a	Sunny	36°2° (likely 36°2° to 41°5°)	29°−2°	0%	9 mph14 km/h from ENE, gusts 18 mph29 km/h	67%	0%	1
Sun 11a	Sunny	42°6° (likely 41°5° to 48°9°)	36°2°	0%	9 mph14 km/h from ENE, gusts 20 mph32 km/h	55%	2%	2
Sun 12p	Sunny	47°8° (likely 45°7° to 51°11°)	41°5°	0%	13 mph21 km/h from E, gusts 20 mph32 km/h	46%	5%	3
Sun 1p	Sunny	51°11° (likely 49°9° to 53°12°)	51°11°	0%	13 mph21 km/h from E, gusts 21 mph33 km/h	40%	12%	4
Sun 2p	Mostly sunny	52°11° (likely 52°11° to 55°13°)	52°11°	0%	13 mph21 km/h from E, gusts 21 mph34 km/h	37%	30%	3
Sun 3p	Sunny	53°12° (likely 52°11° to 55°13°)	53°12°	0%	12 mph19 km/h from E, gusts 21 mph34 km/h	35%	34%	3
Sun 4p	Mostly sunny	54°12° (likely 51°11° to 55°13°)	54°12°	0%	12 mph19 km/h from E, gusts 22 mph35 km/h	35%	48%	2
Sun 5p	Cloudy	52°11° (likely 48°9° to 53°12°)	52°11°	0%	12 mph19 km/h from E, gusts 22 mph36 km/h	38%	78%	1
Sun 6p	Cloudy	49°9° (likely 46°8° to 51°11°)	45°7°	5%	10 mph16 km/h from E, gusts 22 mph35 km/h	43%	89%	0
Sun 7p	Cloudy	45°7° (likely 44°7° to 49°9°)	40°4°	5%	10 mph16 km/h from E, gusts 21 mph33 km/h	52%	97%	0
Sun 8p	Cloudy	42°6° (likely 42°6° to 47°8°)	36°2°	5%	10 mph16 km/h from E, gusts 21 mph33 km/h	58%	97%	0
Sun 9p	Cloudy	39°4° (likely 39°4° to 46°8°)	32°0°	5%	10 mph16 km/h from E, gusts 21 mph35 km/h	63%	97%	0
Sun 10p	Cloudy	37°3° (likely 37°3° to 45°7°)	30°−1°	5%	10 mph16 km/h from E, gusts 21 mph34 km/h	69%	96%	0
Sun 11p	Cloudy	36°2° (likely 36°2° to 45°7°)	29°−2°	5%	10 mph16 km/h from E, gusts 20 mph33 km/h	74%	94%	0
Mon 12a	Cloudy	35°2° (likely 35°2° to 45°7°)	28°−2°	20%	9 mph14 km/h from E, gusts 19 mph31 km/h	79%	93%	0
Mon 1a	Rain	34°1° (likely 34°1° to 47°8°)	27°−3°	20%	9 mph14 km/h from E, gusts 18 mph29 km/h	83%	94%	0

Days ahead

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

Today, Oct 24. Cloudy. High 51°11°, low 28°−2°. Typical 54°12° / 29°−2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 28°−2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 51°11°
  Dry
3. Evening
  6 PM–midnight
  Clear, 38°3°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 25°−4°
  Dry
Official NWS forecast
Today: Sunny, with a high near 51. West wind 5 to 15 mph, with gusts as high as 26 mph.
Tonight: A slight chance of rain before 3am. Mostly cloudy, with a low around 28. West northwest wind 17 to 23 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
50°10°–51°11°
Low, likely
28°−2°–36°2°
Typical high / low
54°12° / 29°−2°
Wind
23 mph37 km/h, gusts 39 mph63 km/h
UV peak
3
Tomorrow, Oct 25. Cloudy. High 54°12°, low 30°−1°. Typical 54°12° / 28°−2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 24°−4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 54°12°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 42°6°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 34°1°
  30% chance · 0.02 in0.5 mm
Official NWS forecast
Day: Mostly sunny, with a high near 54. East northeast wind 6 to 13 mph, with gusts as high as 23 mph.
Night: A slight chance of rain after midnight. Mostly cloudy, with a low around 30. East wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
52°11°–55°13°
Low, likely
26°−3°–33°1°
Typical high / low
54°12° / 28°−2°
Wind
16 mph26 km/h, gusts 26 mph41 km/h
UV peak
4
Monday, Oct 26. Mostly cloudy. High 48°9°, low 27°−3°. Typical 53°12° / 28°−2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 39°4°
  30% chance · 0.04 in1.1 mm
2. Afternoon
  noon–6 PM
  Cloudy, 41°5°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 36°2°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 34°1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 48. East southeast wind 9 to 15 mph, with gusts as high as 26 mph.
Night: Mostly cloudy, with a low around 27. East southeast wind 9 to 14 mph, with gusts as high as 26 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
42°6°–48°9°
Low, likely
27°−3°–36°2°
Typical high / low
53°12° / 28°−2°
Wind
18 mph29 km/h, gusts 28 mph45 km/h
Tuesday, Oct 27. Rain. High 50°10°, low 30°−1°. Typical 53°12° / 28°−2°. Rain 0.08 in2 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 35°2°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 42°6°
  30% chance · 0.03 in0.9 mm
3. Evening
  6 PM–midnight
  Clear, 38°3°
  30% chance · 0.03 in0.7 mm
4. Overnight
  midnight–6 AM
  Cloudy, 36°2°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain after noon. Partly sunny, with a high near 50. East southeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Night: A chance of rain. Mostly cloudy, with a low around 30. North northeast wind around 7 mph. Chance of precipitation is 40%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
39°4°–50°10°
Low, likely
30°−1°–35°2°
Typical high / low
53°12° / 28°−2°
Wind
15 mph24 km/h, gusts 25 mph41 km/h
UV peak
2
Wednesday, Oct 28. Rain. High 52°11°, low 24°−4°. Typical 52°11° / 27°−3°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Clear, 43°6°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 32°0°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain before noon. Mostly sunny, with a high near 52. West northwest wind 7 to 12 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Night: Partly cloudy, with a low around 24. North northwest wind around 5 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
52°11°–57°14°
Low, likely
24°−4°–37°3°
Typical high / low
52°11° / 27°−3°
Wind
13 mph22 km/h, gusts 34 mph55 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 51°11°, low 27°−3°. Typical 52°11° / 27°−3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 33°1°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 52°11°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 40°4°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 51.
Night: Partly cloudy, with a low around 27.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
48°9°–56°13°
Low, likely
26°−3°–37°3°
Typical high / low
52°11° / 27°−3°
Wind
16 mph25 km/h, gusts 32 mph51 km/h
UV peak
3
Friday, Oct 30. Cloudy. High 52°11°, low 39°4°. Typical 51°11° / 26°−3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 52°11°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 42°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 52.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
46°8°–57°14°
Low, likely
36°2°–43°6°
Typical high / low
51°11° / 26°−3°
Wind
13 mph20 km/h, gusts 23 mph37 km/h
UV peak
3
Saturday, Oct 31. Drizzle. High 46°8°, low 39°4°. Typical 51°11° / 26°−3°. Rain 0.09 in2.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 47°8°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 41°5°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 38°3°
  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
39°4°–55°13°
Low, likely
32°0°–45°7°
Typical high / low
51°11° / 26°−3°
Wind
12 mph20 km/h, gusts 18 mph29 km/h
UV peak
3
Sunday, Nov 1. Drizzle. High 47°8°, low 35°2°. Typical 50°10° / 25°−4°. Rain 0.05 in1.3 mm, 10% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 47°8°
  Dry
3. Evening
  6 PM–midnight
  Clear, 39°4°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 37°3°
  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
38°3°–54°12°
Low, likely
26°−3°–42°6°
Typical high / low
50°10° / 25°−4°
Wind
19 mph31 km/h, gusts 32 mph51 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 50°10°, low 35°2°. Typical 50°10° / 25°−4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 50°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 42°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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
48°9°–53°12°
Low, likely
35°2°–36°2°
Typical high / low
50°10° / 25°−4°
Wind
15 mph23 km/h, gusts 24 mph38 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 51°, low 28°.
Tomorrow
Dry, high 54°, low 30°, warming up.
Monday
Dry, high 48°, low 27°, cooling off.
Rest of week
Mostly dry, highs 46–52°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (GGW) (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

For your home

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

Heating this week

About 69% less heating than a typical week.

This week 53Typical 174

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 36
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 6 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 34°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?

Terry · official normals 1991–2020 · records 1949–2026

Oct 24, today vs a typical year

Today’s expected high is 3°2° colder than typical.

Last 7 days vs normal

On average 10°6° warmer than normal (daily mean temperature).

+9°+5°SunOct 18
+6°+3°MonOct 19
+8°+4°TueOct 20
+10°+5°WedOct 21
+12°+7°ThuOct 22
+20°+11°FriOct 23
—SatOct 24

Fallon weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 26 min; Losing 3 min 12 s a day; shortest Dec 21, 1 h 54 min less
Golden hour: 5:14–6:16 PM; Morning 7:12–8:14 AM
Blue hour: 6:16–6:28 PM; Morning 7:00–7:12 AM; first light 7:00 AM

Stars tonight? Poor

Clouds most of the night (about 64% cover).

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:44 AM · rises 4:57 PM
Full moon: Oct 25
New moon: Nov 9

Looking northwest from Fallon. The highest point on the skyline is about 3,000 ft, 7 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.