 |
 Lewistown Weather Forecast Summary |
|
|
| |
Today
May 19th
|
Wednesday
May 20th
|
Thursday
May 21st
|
Friday
May 22nd
|
Saturday
May 23rd
|
 |
|
 |
|
 |
Mix of Sun and Cloud |
Mix of Sun and Cloud |
Mostly Cloudy |
Mix of Sun and Cloud |
Mostly Sunny |
58°F
|
57°F
42°F |
54°F
43°F |
64°F
41°F |
74°F
48°F |
|
| |
|
| Lewistown Detailed Weather Forecast |
|
|
| |
| Tuesday, May 19th, 2026 |
 |
Morning |
Temperature: 39°F |
| Sunny. |
|
|
|
|
Afternoon |
Temperature: 57°F |
| Mostly cloudy. |
|
|
|
 |
Evening |
Temperature: 51°F |
| A mix of cloudy and clear skies with a chance of showers. |
|
|
|
| Wednesday, May 20th, 2026 |
 |
Overnight |
Temperature: 44°F |
| A mix of clear and cloudy skies with a slight chance of showers. Windy at times. |
|
|
|
|
Morning |
Temperature: 47°F |
| Sunny. Windy at times. |
|
|
|
|
Afternoon |
Temperature: 56°F |
| Mostly cloudy with a chance of showers. Slight chance of a thunderstorm. Windy. |
|
|
|
|
Evening |
Temperature: 49°F |
| A mix of cloudy and clear skies with a slight chance of showers. Windy at times. |
|
|
|
| Thursday, May 21st, 2026 |
 |
Overnight |
Temperature: 43°F |
| Cloudy with a chance of showers. |
|
|
|
|
Morning |
Temperature: 44°F |
| Mostly cloudy with a chance of showers. Windy at times. |
|
|
|
 |
Afternoon |
Temperature: 53°F |
| Cloudy with a slight chance of showers. Windy at times. |
|
|
|
 |
Evening |
Temperature: 50°F |
| Mostly clear. Windy at times. |
|
|
|
| Friday, May 22nd, 2026 |
 |
Overnight |
Temperature: 42°F |
| Clear. |
|
|
|
|
Morning |
Temperature: 49°F |
| Sunny. |
|
|
|
 |
Afternoon |
Temperature: 63°F |
| A mix of cloud and sun. Windy at times. |
|
|
|
 |
Evening |
Temperature: 58°F |
| Mostly cloudy. Windy at times. |
|
|
|
| Saturday, May 23rd, 2026 |
|
Overnight |
Temperature: 49°F |
| Clear. |
|
|
|
|
Morning |
Temperature: 57°F |
| Mostly sunny. |
|
|
|
|
Afternoon |
Temperature: 72°F |
| Sunny with cloudy periods. Windy at times. |
|
|
|
|
Evening |
Temperature: 68°F |
| A mix of cloudy and clear skies. |
|
|
|
| Sunday, May 24th, 2026 |
|
Overnight |
Temperature: 60°F |
| Mostly clear. |
|
|
|
|
Morning |
Temperature: 64°F |
| A mix of sun and cloud. Windy at times. |
|
|
|
|
Afternoon |
Temperature: 74°F |
| Mostly sunny. Slight chance of a thunderstorm. Windy at times. |
|
|
|
|
Evening |
Temperature: 66°F |
| Mostly clear. Windy at times. |
|
|
|
| Monday, May 25th, 2026 |
|
Overnight |
Temperature: 57°F |
| Mostly clear. |
|
|
|
|
Morning |
Temperature: 64°F |
| A mix of sun and cloud. Windy. |
|
|
|
|
Afternoon |
Temperature: 72°F |
| Mostly cloudy. Windy. |
|
|
|
|
Evening |
Temperature: 58°F |
| Clear with cloudy periods. Windy. |
|
|
|
| Tuesday, May 26th, 2026 |
 |
Overnight |
Temperature: 46°F |
| Mostly cloudy with showers likely. Windy at times. |
|
|
|
 |
Morning |
Temperature: 43°F |
| Cloudy with showers likely. Windy at times. |
|
|
|
|
Afternoon |
Temperature: 44°F |
| Mostly cloudy with a chance of showers. Windy at times. |
|
|
|
|
Evening |
Temperature: 47°F |
| A mix of cloudy and clear skies with a chance of showers. Windy. |
|
|
|
| Wednesday, May 27th, 2026 |
|
Overnight |
Temperature: 40°F |
| Clear. |
|
|
|
|
Morning |
Temperature: 47°F |
| Sunny. |
|
|
|
|
Afternoon |
Temperature: 61°F |
| Sunny. |
|
|
|
|
Evening |
Temperature: 59°F |
| Clear. |
|
|
|
