Lewistown Weather Conditions

Current Temperature Level

overcast
26°C
27°C11°C
Pleasant

Overcast

Feels Like 23°C

Chances of Rain9%

Good

46AQI

Humidity

26%

Nowovercast26°9%8 PMovercast24°9%9 PMovercast21°10%10 PMovercast19°10%11 PMovercast18°11%12 AMovercast17°12%1 AMovercast16°13%2 AMcloudy15°9%3 AMovercast14°13%4 AMovercast14°13%5 AMovercast14°12%6 AMcloudy15°9%7 AMovercast16°11%8 AMsunny19°2%9 AMthundery outbreaks possible23°3%10 AMovercast25°9%11 AMovercast26°9%12 PMovercast27°9%1 PMpatchy rain possible27°9%2 PMcloudy25°7%3 PMlight rain shower25°19%4 PMovercast18°13%5 PMovercast24°9%6 PMovercast25°9%
.

Skies may remain grey and overcast.

Last Updated: 2026-08-17 19:00 (Local Time)

Lewistown Weather Parameters

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Lewistown 10-Days Weather Forecast

See Monthly
Today17 Aug.


Overcast

Overcast

Fully overcast skies with a high of 20 °C. Humidity will be 43%, and winds at 14.4 km/h.


temperature icon

27°C  /  11°C

temperature iconHumi.43 %
temperature iconPrec.0 mm


Sunrise icon

Sunrise

06:17 AM

14hrs 8min

Sunset icon

Sunset

08:25 PM
Temperature (°C)
.
12 AMTime11 PM

Time

Condition

Temperature IconTemp

Humidity IconHumidity

UV IconUV

Wind IconWind Speed & Dir.

12 AM

ClearClear

17 °C

47 %

0

8.6 kmph /  S

Feels Like IconFeels 14 °C

Temperature IconCover 0 %

Visibility IconVisibility 10 km

1 AM

ClearClear

16 °C

46 %

0

7.6 kmph /  S

Feels Like IconFeels 14 °C

Temperature IconCover 16 %

Visibility IconVisibility 10 km

2 AM

ClearClear

15 °C

56 %

0

8.3 kmph /  S

Feels Like IconFeels 12 °C

Temperature IconCover 15 %

Visibility IconVisibility 10 km

3 AM

ClearClear

14 °C

60 %

0

6.8 kmph /  S

Feels Like IconFeels 12 °C

Temperature IconCover 3 %

Visibility IconVisibility 10 km

4 AM

Partly CloudyPartly Cloudy

14 °C

61 %

0

6.8 kmph /  SSW

Feels Like IconFeels 12 °C

Temperature IconCover 28 %

Visibility IconVisibility 10 km

5 AM

OvercastOvercast

13 °C

65 %

0

7.6 kmph /  SSW

Feels Like IconFeels 11 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

6 AM

OvercastOvercast

12 °C

67 %

0

6.5 kmph /  SSW

Feels Like IconFeels 11 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

7 AM

OvercastOvercast

11 °C

58 %

0.1

5.4 kmph /  SSW

Feels Like IconFeels 10 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

8 AM

OvercastOvercast

14 °C

51 %

0.6

3.2 kmph /  WSW

Feels Like IconFeels 13 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

9 AM

OvercastOvercast

19 °C

43 %

1.3

6.8 kmph /  NW

Feels Like IconFeels 17 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

10 AM

OvercastOvercast

22 °C

38 %

2.5

8.3 kmph /  NW

Feels Like IconFeels 19 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

11 AM

OvercastOvercast

23 °C

35 %

4

9.4 kmph /  NW

Feels Like IconFeels 20 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

12 PM

OvercastOvercast

25 °C

36 %

5.4

11.9 kmph /  NW

Feels Like IconFeels 22 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

1 PM

OvercastOvercast

26 °C

32 %

5.9

12.2 kmph /  NW

Feels Like IconFeels 23 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

2 PM

Partly CloudyPartly Cloudy

27 °C

30 %

5.7

13 kmph /  NW

Feels Like IconFeels 24 °C

Temperature IconCover 33 %

Visibility IconVisibility 10 km

3 PM

OvercastOvercast

27 °C

31 %

4.4

13.7 kmph /  NW

Feels Like IconFeels 24 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

4 PM

OvercastOvercast

27 °C

30 %

3.7

14.4 kmph /  NNW

Feels Like IconFeels 24 °C

Temperature IconCover 88 %

Visibility IconVisibility 10 km

5 PM

OvercastOvercast

27 °C

28 %

1.1

12.2 kmph /  NW

Feels Like IconFeels 24 °C

Temperature IconCover 100 %

Visibility IconVisibility 9 km

6 PM

OvercastOvercast

27 °C

27 %

1

9.4 kmph /  NW

Feels Like IconFeels 24 °C

Temperature IconCover 100 %

Visibility IconVisibility 9 km

7 PM

OvercastOvercast

26 °C

26 %

0.3

9 kmph /  NNW

Feels Like IconFeels 23 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

8 PM

OvercastOvercast

24 °C

29 %

0

6.8 kmph /  NNE

Feels Like IconFeels 21 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

9 PM

OvercastOvercast

21 °C

34 %

0

5 kmph /  E

Feels Like IconFeels 19 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

10 PM

OvercastOvercast

19 °C

43 %

0

7.6 kmph /  ESE

Feels Like IconFeels 16 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

11 PM

OvercastOvercast

18 °C

48 %

0

8.3 kmph /  SSE

Feels Like IconFeels 15 °C

Temperature IconCover 97 %

Visibility IconVisibility 10 km

Temp26 °C


ConditionOvercast


Humidity26 %

Feels23 °C


Cover100 %


Visibility10 km

Wind Speed & Dir.9 kmph /  NNW


UV0.3

Lewistown 30-Days (August 2026) Weather Forecast

See Hourly
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny38°17°
2
Sunny30°17°
3
Sunny19°8°
4
Sunny24°5°
5
Sunny28°9°
6
Sunny29°12°
7
Sunny31°10°
8
Smoky haze31°14°
9
Smoky haze28°14°
10
Sunny31°12°
11
Sunny29°14°
12
Sunny27°14°
13
Sunny20°13°
14
Patchy rain nearby21°12°
15
Patchy rain nearby24°11°
16
Sunny28°13°
17Today
Overcast28°11°
18
Overcast27°15°
19
Sunny29°16°
20
Sunny31°18°
21
Sunny33°17°
22
Overcast35°19°
23
Sunny30°17°
24
Sunny30°15°
25
Rain25°11°
26
Rain Possible26°12°
27
Heavy Rain26°13°
28
Rain26°12°
29
Heavy Rain26°13°
30
Rain Showers25°12°
31
Rain Possible25°12°

AugustWeather Overview

No. of days:

Sunny

Sunny

17

Cloudy

Cloudy

0

Rainy

Rainy

9

Snowy

Snowy

0


The monthly weather averages in Lewistown consist of 17 sunny days, 0 cloudy days, 9 rainy days, and 0 snowy days.

Lewistown's Locations Weather Conditions


Locations
Temp
Condition
Humi.
UV
Wind Speed & Direction
26 °C
overcastOvercast
26%
0.3

9 kmph /  NNW

26 °C
overcastOvercast
26%
0.3

9 kmph /  NNW

United States's Hottest Cities - August 2026

Hottest
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Last Updated: 18 Aug 2026, 01:21 AM

City Weather Rankings

FAQs About Lewistown Weather Conditions


1. What is the current temperature in Lewistown today - 17 August 2026?

The current temperature in Lewistown is 26°C, with a feels-like temperature of 23°C. Today's forecast shows a high of 27°C and a low of 11°C, giving a 16 degree swing through the day as of 07:00 PM 17 August 2026.

2. What are the current weather parameters in Lewistown today?

Here is a complete overview of Lewistown's current weather conditions as of 07:00 PM 17 August 2026: Condition : Overcast Temperature : 26°C Pleasant (Feels like 23°C) Humidity : 26% Wind Speed : 9 km/h from NNW (326 degrees), Gust 3.3 m/s UV Index : 0.3 (Low Air Pressure : 1013 mb Cloud Cover : 100% Visibility : 10 km Precipitation : 0 mm (7% chance of rain)

3. What is the 10-day weather forecast for Lewistown from 07:00 PM 17 August 2026?

From 07:00 PM 17 August 2026, Lewistown's 10-day forecast shows this trend: Today (Aug. 17) : Temp. 20°C, Hum. 43% and Overcast condition. Tuesday (Aug. 18) : Temp. 20°C, Hum. 40% and Overcast condition. Wednesday (Aug. 19) : Temp. 22°C, Hum. 29% and Sunny condition. Thursday (Aug. 20) : Temp. 24°C, Hum. 24% and Sunny condition. Friday (Aug. 21) : Temp. 25°C, Hum. 28% and Sunny condition. Saturday (Aug. 22) : Temp. 26°C, Hum. 32% and Overcast condition. Sunday (Aug. 23) : Temp. 24°C, Hum. 33% and Sunny condition. Monday (Aug. 24) : Temp. 22°C, Hum. 25% and Sunny condition. Tuesday (Aug. 25) : Temp. 18°C, Hum. 48% and Rain condition. Wednesday (Aug. 26) : Temp. 19°C, Hum. 46% and Rain Possible condition.

4. Will it rain in Lewistown today?

As of 07:00 PM 17 August 2026, there is a 9% chance of rainfall in Lewistown later today around 2026-08-17 19:00. Current precipitation is 0 mm. Residents are advised to carry an umbrella before heading out.

5. What is the monthly weather forecast for Lewistown in August 2026?

August 2026 in Lewistown is forecast to have 17 sunny days, 9 rainy days, 0 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 5°C to highs of 38°C.

6. How does the weather in Lewistown affect air quality?

Weather directly impacts air quality in Lewistown. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.