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 Lewistown Weather Forecast Summary |
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Today
Jun 9th
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Wednesday
Jun 10th
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Thursday
Jun 11th
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Friday
Jun 12th
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Saturday
Jun 13th
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Mix of Cloud and Sun |
Mix of Cloud and Sun |
Mix of Cloud and Sun |
Mostly Sunny |
Mostly Cloudy |
68°F
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55°F
40°F |
62°F
41°F |
67°F
47°F |
52°F
45°F |
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| Lewistown Detailed Weather Forecast |
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| Tuesday, June 9th, 2026 |
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Afternoon |
Temperature: 67°F |
| Cloudy. Slight chance of a thunderstorm. Windy. |
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Evening |
Temperature: 53°F |
| A mix of cloudy and clear skies with a chance of showers. Windy. |
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| Wednesday, June 10th, 2026 |
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Overnight |
Temperature: 49°F |
| A mix of clear and cloudy skies. Windy. |
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Morning |
Temperature: 49°F |
| A mix of sun and cloud. Wind 20 to 30 mph. |
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Afternoon |
Temperature: 55°F |
| Cloudy with sunny periods. Windy. |
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Evening |
Temperature: 45°F |
| Mostly cloudy with a chance of showers. Wind 20 to 30 mph. |
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| Thursday, June 11th, 2026 |
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Overnight |
Temperature: 42°F |
| Cloudy with clear periods with a chance of showers. Wind 20 to 30 mph. |
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Morning |
Temperature: 44°F |
| A mix of cloud and sun with a chance of showers. Windy. |
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Afternoon |
Temperature: 56°F |
| A mix of cloud and sun. Windy. |
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Evening |
Temperature: 57°F |
| Clear. Windy at times. |
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| Friday, June 12th, 2026 |
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Overnight |
Temperature: 47°F |
| Clear. |
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Morning |
Temperature: 53°F |
| Mostly sunny. Windy at times. |
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Afternoon |
Temperature: 65°F |
| Sunny with cloudy periods. Windy at times. |
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Evening |
Temperature: 60°F |
| A mix of cloudy and clear skies. Windy at times. |
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| Saturday, June 13th, 2026 |
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Overnight |
Temperature: 50°F |
| Mostly cloudy with a chance of showers. |
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Morning |
Temperature: 46°F |
| Mostly cloudy with a chance of showers. |
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Afternoon |
Temperature: 45°F |
| Cloudy with a chance of showers. |
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Evening |
Temperature: 45°F |
| A mix of cloudy and clear skies with a chance of showers. |
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| Sunday, June 14th, 2026 |
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Overnight |
Temperature: 42°F |
| Mostly clear. |
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Morning |
Temperature: 46°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 57°F |
| Mostly cloudy with a chance of showers. Slight chance of a thunderstorm. Windy. |
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Evening |
Temperature: 52°F |
| Clear with a chance of showers. Slight chance of a thunderstorm. Windy. |
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| Monday, June 15th, 2026 |
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Overnight |
Temperature: 44°F |
| Clear. Windy at times. |
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Morning |
Temperature: 50°F |
| A mix of cloud and sun. Windy at times. |
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Afternoon |
Temperature: 57°F |
| Mostly cloudy with showers likely. Slight chance of a thunderstorm. Windy. |
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Evening |
Temperature: 54°F |
| A mix of cloudy and clear skies with showers likely. Windy at times. |
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| Tuesday, June 16th, 2026 |
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Overnight |
Temperature: 46°F |
| Mostly clear. |
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Morning |
Temperature: 53°F |
| Sunny with cloudy periods. |
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Afternoon |
Temperature: 70°F |
| A mix of sun and cloud. |
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Evening |
Temperature: 68°F |
| Mostly clear. Windy at times. |
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| Wednesday, June 17th, 2026 |
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Overnight |
Temperature: 61°F |
| Mostly clear. |
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Morning |
Temperature: 69°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 81°F |
| Mostly sunny. Windy. |
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Evening |
Temperature: 70°F |
| Clear with cloudy periods. Windy. |
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