New York, NY 76° 🌤️ Los Angeles, CA Chicago, IL 81° 🌤️ Houston, TX Miami, FL 88° Phoenix, AZ 105° 🌤️ Seattle, WA 🌤️ Denver, CO 🌤️ Toronto, ON Vancouver, BC 69°
WeatherLive › Montana › Lewistown

Lewistown, MT Weather (59457)

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherLewistown · 6:01 PM MDT
83° | 55°
80°F
Feels like 76°
Sunny
WindNE 4 mph · Gusts 5 mph
Precip17% · 0.01 in
Humidity25% · Dew point 42°
UV index7 High
Air Quality58 Moderate
Pressure29.94 inHg
Visibility6 mi
Sunrise / Sunset6:16 AM · 8:27 PM · 14h 11m

Weather map — Lewistown

Full radar →
Now
80°
1%
4 mph
19:00
78°
1%
7 mph
20:00
69°
1%
5 mph
21:00
65°
1%
4 mph
22:00
65°
1%
5 mph
23:00
65°
4%
6 mph
00:00
66°
5%
5 mph
01:00
66°
3%
5 mph
02:00
65°
1%
7 mph
03:00
64°
1%
6 mph
04:00
63°
2%
4 mph
05:00
62°
3%
4 mph
06:00
62°
3%
4 mph
07:00
63°
7%
4 mph
08:00
68°
17%
2 mph
09:00
72°
7%
2 mph
10:00
75°
2%
4 mph
11:00
77°
2%
6 mph
12:00
79°
1%
6 mph
13:00
81°
1%
6 mph
14:00
82°
1%
9 mph
15:00
82°
1%
10 mph
16:00
81°
2%
8 mph
17:00
76°
1%
6 mph

Today · Sun 8/16

High 83°
17% / 0.01 in

Sunny. Winds NW at 9 mph.

Tonight · Sun 8/16

Low 62°
1% / –

Sunny. Winds SE at 4 mph.

Tomorrow · Mon 8/17

82° | 62°
36% / 0.02 in

Sunny. Winds N at 12 mph.

7-day trend

Lewistown · temperature + precipitation

10-day forecast

Updated 6:01 PM

Details & indices

Wind
4 mph NE
Gusts 5 mph
Humidity
25%
Dew point 42°
Pressure
29.94 inHg
Rising
UV index
7 — High
High today
Air Quality
Moderate
AQI 58 · US EPA
Allergy
Very high
Grass
Visibility
6 mi
Clear view
Allergy — Lewistown

🌿 Conditions right now

View all →
Birch
None
Grass
Very high
Oak
None
Alder
None
Hazel
None
Mugwort
Moderate
Ragweed
None

Sun & moon

Sunrise6:16 AM
Sunset8:27 PM
Length of day14h 11m
Moonrise11:06 AM
Moonset9:52 PM
Moon phase🌒 Waxing Crescent · 21%
Next full moonAug 27 Sturgeon Moon
Latitude47.0625°N
Longitude-109.4282°E

Water temps nearby

View all →
No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Great
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Data sources · Sunday, August 16
Where the Lewistown forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 47.0625°N, -109.4282°.
NBM + global weather models
Updated: 6:01 PM
ZIP codes in Lewistown
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59032
Lewistown
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59084
Lewistown
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59418
Lewistown
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59424
Lewistown
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59430
Lewistown
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59441
Lewistown
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59451
Lewistown
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59452
Lewistown
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59453
Lewistown
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59457
Lewistown
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59462
Lewistown
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59464
Lewistown
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59471
Lewistown
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59479
Lewistown
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59489
Lewistown
Weather in Lewistown
Over the next 10 days Lewistown tops out around 99° (Saturday) and dips to 51° on the coolest night (Wednesday). Models drop roughly 0.09 in of precipitation across the stretch — watch Tuesday (57%). No watches or warnings are active for the area right now. Right now Lewistown is running about 30° warmer than Butte. Longer view: mountain climate — intense sun, cool nights and snow well beyond 'winter'.
Lewistown, MT · Elev 3,947 ft · 47.06°N, 109.43°W · Montana · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 6:01 PM