Observed 11:35 AM MDT at KGPI

Kalispell, MT weather

Partly cloudy and 45°7°.

Forecasts agree

Now 45°7°

Partly sunny · Feels like 39°4°

Feels like: 39°4°; Wind chill from 12 mph19 km/h wind · air 45°7°
Wind: 12 mph19 km/h; From the southeast. Up to 12 mph19 km/h through 11 PM
Dew point: 34°1°; Dry, static shocks likely
UV tomorrow: 3Moderate; Moderate 1–4 PM · peak 3
Air quality: 14Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.24 inHg1024 hPa; Falling · −0.06 inHg−2.1 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

5°3° cooler than this time yesterday (47°8° then, 42°6° now)

Good hours for

High 50°10° today at 5 PM
Below 40°4° tonight after 9 PM
Hard freeze tonight 2–11 AM (low 26°−3°)
Low 26°−3° tomorrow at 7 AM
Hard freeze tomorrow night from midnight (low 25°−4°)

This afternoonUp to 50°10° by 5 PM · Partly cloudy
TonightDown to 28°−2° by 5 AM · freezing, low 28°−2° · Mostly cloudy
Tomorrow morningUp to 37°3° by 11 AM · freezing, low 26°−3° · Mostly cloudy
Tomorrow afternoonUp to 49°9° by 5 PM · Mostly cloudy
Tomorrow nightDown to 27°−3° by 5 AM · freezing, low 27°−3° · Mostly cloudy
Monday morningUp to 31°−1° by 10 AM · freezing, low 25°−4° · Mostly 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 11a	Partly sunny	40°4° (likely 40°4° to 45°7°)	40°4°	0%	1 mph2 km/h from ESE, gusts 7 mph11 km/h	87%	18%	1
Sat 12p	Mostly sunny	43°6° (likely 43°6° to 48°9°)	41°5°	0%	3 mph5 km/h from SE, gusts 7 mph12 km/h	79%	39%	1
Sat 1p	Partly sunny	46°8° (likely 46°8° to 50°10°)	45°7°	0%	3 mph5 km/h from SE, gusts 9 mph15 km/h	68%	43%	2
Sat 2p	Sunny	49°9° (likely 49°9° to 52°11°)	48°9°	0%	3 mph5 km/h from SE, gusts 10 mph16 km/h	62%	24%	2
Sat 3p	Sunny	49°9° (likely 49°9° to 52°11°)	47°8°	0%	5 mph8 km/h from SE, gusts 11 mph17 km/h	57%	19%	2
Sat 4p	Sunny	49°9° (likely 49°9° to 53°12°)	47°8°	0%	5 mph8 km/h from SE, gusts 9 mph15 km/h	55%	19%	1
Sat 5p	Partly sunny	50°10° (likely 50°10° to 52°11°)	49°9°	0%	3 mph5 km/h from SE, gusts 9 mph15 km/h	56%	55%	0
Sat 6p	Cloudy	48°9° (likely 47°8° to 49°9°)	47°8°	0%	3 mph5 km/h from ESE, gusts 10 mph16 km/h	62%	62%	1
Sat 7p	Cloudy	45°7° (likely 42°6° to 45°7°)	45°7°	0%	2 mph3 km/h from ESE, gusts 9 mph15 km/h	73%	68%	0
Sat 8p	Cloudy	42°6° (likely 41°5° to 44°7°)	42°6°	0%	1 mph2 km/h from NW, gusts 8 mph13 km/h	82%	76%	0
Sat 9p	Cloudy	38°3° (likely 38°3° to 44°7°)	38°3°	0%	1 mph2 km/h from NW, gusts 4 mph6 km/h	84%	90%	0
Sat 10p	Cloudy	37°3° (likely 37°3° to 43°6°)	37°3°	0%	1 mph2 km/h from NW, gusts 4 mph6 km/h	86%	85%	0
Sat 11p	Cloudy	36°2° (likely 36°2° to 42°6°)	36°2°	0%	1 mph2 km/h from NNW, gusts 5 mph7 km/h	86%	89%	0
Sun 12a	Cloudy	35°2° (likely 35°2° to 41°5°)	35°2°	0%	2 mph3 km/h from NW, gusts 5 mph8 km/h	87%	87%	0
Sun 1a	Cloudy	34°1° (likely 34°1° to 40°4°)	34°1°	0%	2 mph3 km/h from NW, gusts 5 mph8 km/h	88%	74%	0
Sun 2a	Partly cloudy	32°0° (likely 32°0° to 38°3°)	29°−2°	0%	3 mph5 km/h from NW, gusts 6 mph9 km/h	91%	67%	0
Sun 3a	Mostly clear	31°−1° (likely 31°−1° to 37°3°)	26°−3°	0%	5 mph8 km/h from NW, gusts 9 mph15 km/h	92%	31%	0
Sun 4a	Mostly clear	29°−2° (likely 29°−2° to 36°2°)	23°−5°	0%	6 mph10 km/h from NNW, gusts 10 mph15 km/h	94%	24%	0
Sun 5a	Mostly cloudy	28°−2° (likely 28°−2° to 36°2°)	22°−6°	0%	6 mph10 km/h from NNW, gusts 6 mph10 km/h	98%	56%	0
Sun 6a	Mostly clear	28°−2° (likely 28°−2° to 35°2°)	22°−6°	0%	6 mph10 km/h from NNW, gusts 7 mph12 km/h	94%	36%	0
Sun 7a	Mostly cloudy	26°−3° (likely 26°−3° to 35°2°)	19°−7°	0%	6 mph10 km/h from NNW, gusts 8 mph13 km/h	95%	53%	0
Sun 8a	Mostly cloudy	26°−3° (likely 26°−3° to 34°1°)	19°−7°	0%	6 mph10 km/h from NNW, gusts 9 mph14 km/h	96%	68%	0
Sun 9a	Mostly cloudy	27°−3° (likely 27°−3° to 36°2°)	20°−7°	0%	6 mph10 km/h from N, gusts 9 mph15 km/h	96%	69%	0
Sun 10a	Mostly cloudy	32°0° (likely 32°0° to 42°6°)	26°−3°	0%	6 mph10 km/h from N, gusts 8 mph13 km/h	86%	67%	1
Sun 11a	Mostly cloudy	37°3° (likely 37°3° to 50°10°)	32°0°	0%	6 mph10 km/h from N, gusts 7 mph11 km/h	76%	67%	2
Sun 12p	Mostly cloudy	40°4° (likely 40°4° to 53°12°)	38°3°	0%	3 mph5 km/h from NNE, gusts 9 mph14 km/h	68%	67%	2
Sun 1p	Mostly cloudy	44°7° (likely 44°7° to 55°13°)	42°6°	0%	3 mph5 km/h from NNE, gusts 9 mph14 km/h	60%	63%	3
Sun 2p	Mostly cloudy	47°8° (likely 47°8° to 58°14°)	46°8°	0%	3 mph5 km/h from NNE, gusts 9 mph15 km/h	56%	67%	3
Sun 3p	Mostly cloudy	48°9° (likely 48°9° to 59°15°)	47°8°	0%	3 mph5 km/h from NE, gusts 9 mph14 km/h	53%	53%	3
Sun 4p	Mostly cloudy	48°9° (likely 48°9° to 59°15°)	47°8°	0%	3 mph5 km/h from NE, gusts 9 mph15 km/h	50%	69%	2
Sun 5p	Cloudy	49°9° (likely 49°9° to 58°14°)	48°9°	0%	3 mph5 km/h from NE, gusts 10 mph16 km/h	52%	72%	1
Sun 6p	Cloudy	47°8° (likely 45°7° to 53°12°)	45°7°	0%	5 mph8 km/h from NNE, gusts 11 mph18 km/h	56%	74%	0
Sun 7p	Cloudy	44°7° (likely 41°5° to 48°9°)	41°5°	0%	5 mph8 km/h from NNE, gusts 6 mph10 km/h	67%	75%	0
Sun 8p	Cloudy	40°4° (likely 38°3° to 44°7°)	37°3°	0%	5 mph8 km/h from NNE, gusts 7 mph11 km/h	75%	76%	0
Sun 9p	Cloudy	36°2° (likely 36°2° to 42°6°)	31°−1°	0%	6 mph10 km/h from NNE, gusts 6 mph10 km/h	79%	77%	0
Sun 10p	Cloudy	34°1° (likely 34°1° to 42°6°)	29°−2°	0%	6 mph10 km/h from NNE, gusts 7 mph11 km/h	82%	76%	0
Sun 11p	Cloudy	33°1° (likely 33°1° to 41°5°)	28°−2°	0%	6 mph10 km/h from NNE, gusts 6 mph10 km/h	83%	72%	0
Mon 12a	Mostly cloudy	32°0° (likely 32°0° to 40°4°)	29°−2°	0%	3 mph5 km/h from N, gusts 6 mph10 km/h	84%	62%	0
Mon 1a	Mostly cloudy	31°−1° (likely 30°−1° to 39°4°)	28°−2°	0%	3 mph5 km/h from N, gusts 6 mph10 km/h	85%	60%	0
Mon 2a	Mostly cloudy	30°−1° (likely 29°−2° to 39°4°)	26°−3°	0%	3 mph5 km/h from N, gusts 6 mph10 km/h	86%	69%	0
Mon 3a	Cloudy	29°−2° (likely 28°−2° to 39°4°)	29°−2°	0%	2 mph3 km/h from N, gusts 7 mph11 km/h	87%	75%	0
Mon 4a	Cloudy	28°−2° (likely 28°−2° to 38°3°)	28°−2°	0%	2 mph3 km/h from N, gusts 6 mph10 km/h	88%	78%	0
Mon 5a	Cloudy	27°−3° (likely 27°−3° to 37°3°)	27°−3°	0%	2 mph3 km/h from N, gusts 6 mph9 km/h	89%	83%	0
Mon 6a	Cloudy	27°−3° (likely 27°−3° to 36°2°)	27°−3°	0%	2 mph3 km/h from N, gusts 5 mph8 km/h	90%	83%	0
Mon 7a	Mostly cloudy	26°−3° (likely 26°−3° to 32°0°)	26°−3°	0%	2 mph3 km/h from N, gusts 2 mph3 km/h	92%	85%	0
Mon 8a	Mostly cloudy	25°−4° (likely 25°−4° to 32°0°)	25°−4°	0%	2 mph3 km/h from N, gusts 2 mph4 km/h	94%	84%	0
Mon 9a	Mostly cloudy	27°−3° (likely 27°−3° to 34°1°)	27°−3°	0%	1 mph2 km/h from N, gusts 2 mph4 km/h	93%	82%	0
Mon 10a	Mostly cloudy	31°−1° (likely 30°−1° to 37°3°)	31°−1°	0%	1 mph2 km/h from N, gusts 2 mph3 km/h	87%	84%	1

Days ahead

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

Today, Oct 24. Cloudy. High 51°11°, low 26°−3°. Typical 49°9° / 27°−3°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Sunny, 50°10°
  Dry
2. Evening
  6 PM–midnight
  Cloudy, 42°6°
  Dry
3. Overnight
  midnight–6 AM
  Mostly clear, 28°−2°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 51. Southeast wind 1 to 5 mph.
Tonight: Partly cloudy, with a low around 26. North northwest wind 1 to 6 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
51°11°–53°12°
Low, likely
26°−3°–36°2°
Typical high / low
49°9° / 27°−3°
Wind
11 mph17 km/h, gusts 17 mph27 km/h
UV peak
3
Tomorrow, Oct 25. Mostly cloudy. High 50°10°, low 25°−4°. Typical 49°9° / 27°−3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly cloudy, 26°−3°
  Dry
2. Afternoon
  noon–6 PM
  Mostly cloudy, 49°9°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 40°4°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 27°−3°
  Dry
Official NWS forecast
Day: Mostly cloudy, with a high near 50. North wind around 6 mph.
Night: Mostly cloudy, with a low around 25. North northeast wind 2 to 6 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
50°10°–59°15°
Low, likely
25°−4°–34°1°
Typical high / low
49°9° / 27°−3°
Wind
9 mph14 km/h, gusts 15 mph24 km/h
UV peak
3
Monday, Oct 26. Cloudy. High 51°11°, low 28°−2°. Typical 48°9° / 26°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly cloudy, 25°−4°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 46°8°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 39°4°
  30% chance
4. Overnight
  midnight–6 AM
  Drizzle, 36°2°
  40% chance · 0.07 in1.8 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 51. North wind around 2 mph.
Night: A chance of rain. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
45°7°–51°11°
Low, likely
27°−3°–32°0°
Typical high / low
48°9° / 26°−3°
Wind
8 mph12 km/h
UV peak
3
Tuesday, Oct 27. Rain. High 49°9°, low 28°−2°. Typical 48°9° / 26°−3°. Rain 0.15 in3.8 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 35°2°
  40% chance · 0.02 in0.4 mm
2. Afternoon
  noon–6 PM
  Cloudy, 46°8°
  50% chance · 0.04 in1 mm
3. Evening
  6 PM–midnight
  Drizzle, 40°4°
  40% chance · 0.04 in0.9 mm
4. Overnight
  midnight–6 AM
  Cloudy, 38°3°
  30% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 49.
Night: A chance of rain. Mostly cloudy, with a low around 28.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
45°7°–49°9°
Low, likely
28°−2°–37°3°
Typical high / low
48°9° / 26°−3°
Wind
9 mph14 km/h, gusts 23 mph37 km/h
UV peak
1
Wednesday, Oct 28. Snow. High 46°8°, low 23°−5°. Typical 47°8° / 26°−3°. Snow 0.16 in4.1 mm, 60% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 38°3°
  40% chance · 0.05 in1.2 mm
2. Afternoon
  noon–6 PM
  Drizzle, 45°7°
  40% chance · 0.06 in1.5 mm
3. Evening
  6 PM–midnight
  Drizzle, 37°3°
  40% chance · 0.04 in1 mm
4. Overnight
  midnight–6 AM
  Rain, 32°0°
  40% chance · 0.12 in3.1 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain and snow likely. Mostly cloudy, with a high near 46.
Night: A chance of rain and snow. Mostly cloudy, with a low around 23.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
44°7°–47°8°
Low, likely
23°−5°–35°2°
Typical high / low
47°8° / 26°−3°
Wind
12 mph19 km/h, gusts 23 mph37 km/h
UV peak
3
Thursday, Oct 29. Snow. High 44°7°, low 22°−6°. Typical 47°8° / 26°−3°. Snow 0.16 in4.1 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 32°0°
  50% chance
2. Afternoon
  noon–6 PM
  Drizzle, 43°6°
  40% chance · 0.03 in0.8 mm
3. Evening
  6 PM–midnight
  Drizzle, 35°2°
  40% chance
4. Overnight
  midnight–6 AM
  Cloudy, 30°−1°
  30% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of snow before 3pm, then a slight chance of rain. Partly sunny, with a high near 44. Little or no snow accumulation expected.
Night: A chance of rain and snow. Mostly cloudy, with a low around 22.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
40°4°–45°7°
Low, likely
22°−6°–34°1°
Typical high / low
47°8° / 26°−3°
Wind
7 mph11 km/h, gusts 15 mph24 km/h
UV peak
1
Friday, Oct 30. Snow. High 46°8°, low 22°−6°. Typical 46°8° / 26°−3°. Snow 0–1 in0–3 cm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Snow, 31°0°
  30% chance · 0.2 in0.4 cm
2. Afternoon
  noon–6 PM
  Snow, 37°3°
  30% chance · 0.1 in0.4 cm
3. Evening
  6 PM–midnight
  Cloudy, 32°0°
  20% chance
4. Overnight
  midnight–6 AM
  Cloudy, 27°−3°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of snow. Partly sunny, with a high near 46. Little or no snow accumulation expected.
Night: A slight chance of snow before 9pm, then a slight chance of rain and snow between 9pm and midnight. Mostly cloudy, with a low around 22.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
34°1°–46°8°
Low, likely
22°−6°–30°−1°
Typical high / low
46°8° / 26°−3°
Wind
8 mph13 km/h, gusts 17 mph28 km/h
UV peak
2
Saturday, Oct 31. Drizzle. High 39°4°, low 26°−3°. Typical 46°8° / 26°−3°. Rain 0.03 in0.8 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 28°−2°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 37°3°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 33°0°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 29°−2°
  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
36°2°–40°4°
Low, likely
24°−4°–29°−2°
Typical high / low
46°8° / 26°−3°
Wind
15 mph23 km/h, gusts 24 mph38 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 41°5°, low 28°−2°. Typical 45°7° / 26°−3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 41°5°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 34°1°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 29°−2°
  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 agreeIndependent forecasts are close; the range is narrow.
High, likely
40°4°–43°6°
Low, likely
25°−4°–32°0°
Typical high / low
45°7° / 26°−3°
Wind
6 mph9 km/h, gusts 19 mph31 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 41°5°, low 28°−2°. Typical 45°7° / 25°−4°. Rain 0.02 in0.5 mm, 10% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 32°0°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 42°5°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 33°0°
  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
36°2°–44°7°
Low, likely
25°−4°–33°1°
Typical high / low
45°7° / 25°−4°
Wind
5 mph8 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 51°, low 26°.
Tomorrow
Dry, high 50°, low 25°.
Monday
Dry, high 51°, low 28°.
Rest of week
Highs 39–49°; chance of precipitation on Tuesday, Wednesday.

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

Stillwater River at Lawrence Park at Kalispell

0.6 mi

Below flood stage

Level: 2.8 ft
Flow: 81 cfs

Forecast peak 2.8 ft Sat 12 PM

Reading from Sat 9:45 AM · NWS gauge page

Whitefish River near Kalispell

7.6 mi

Below flood stage

Level: 1.5 ft
Flow: 58 cfs

Forecast peak 1.4 ft Sat 12 PM

Reading from Sat 9:45 AM · NWS gauge page

Flathead River at Columbia Falls

12 mi

Below flood stage

Level: 3.8 ft
Flow: 3,640 cfs

Forecast peak 3.8 ft Sun 5 PM

Reading from Sat 9:45 AM · NWS gauge page

Swan River near Bigfork

21 mi

Below flood stage

Level: 2.3 ft
Flow: 464 cfs

Forecast peak 2.3 ft Wed 6 PM

Reading from Sat 10 AM · NWS gauge page

For your home

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

Heating this week

About 72% less heating than a typical week.

This week 56Typical 196

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 39
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 20 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?

Kalispell Glacier Airport · official normals 1991–2020 · records 1896–2026

Oct 24, today vs a typical year

Today’s expected high is 2°1° warmer than typical.

Last 7 days vs normal

On average 4°2° warmer than normal (daily mean temperature).

+3°+2°SunOct 18
+2°+1°MonOct 19
+6°+3°TueOct 20
+4°+2°WedOct 21
+7°+4°ThuOct 22
±0°FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 21 min; Losing 3 min 12 s a day; shortest Dec 21, 2 h 0 min less
Golden hour: 5:47–6:51 PM; Morning 7:51–8:54 AM
Blue hour: 6:51–7:03 PM; Morning 7:38–7:51 AM; first light 7:38 AM

Stars tonight? Poor

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

Moon

Waxing gibbous

97% lit · growing

Today: sets 6:24 AM · rises 5:33 PM
Full moon: Oct 25
New moon: Nov 9

Looking east from Kalispell. The highest point on the skyline is about 12,100 ft, 23 mi away.Skyline from USGS elevation data, heights drawn up to 5× taller. Sky, sun and moon as they are now.

Kalispell, MT weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Stillwater River at Lawrence Park at Kalispell

Whitefish River near Kalispell

Flathead River at Columbia Falls

Swan River near Bigfork

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Poor

Moon