 |
 Lewistown Weather Forecast Summary |
|
|
| |
Today
Jul 15th
|
Thursday
Jul 16th
|
Friday
Jul 17th
|
Saturday
Jul 18th
|
Sunday
Jul 19th
|
 |
 |
|
|
|
Thundershowers |
Mostly Sunny |
Thundershowers |
Mostly Sunny |
Mostly Sunny |
79°F
|
86°F
66°F |
88°F
63°F |
90°F
72°F |
83°F
69°F |
|
| |
|
| Lewistown Detailed Weather Forecast |
|
|
| |
| Wednesday, July 15th, 2026 |
 |
Evening |
Temperature: 74°F |
| Clear with cloudy periods with a chance of showers or thundershowers. |
|
|
|
| Thursday, July 16th, 2026 |
 |
Overnight |
Temperature: 67°F |
| Clear with a chance of showers or thundershowers. |
|
|
|
 |
Morning |
Temperature: 70°F |
| Sunny. Chance of a thunderstorm. |
|
|
|
|
Afternoon |
Temperature: 84°F |
| Sunny. Chance of a thunderstorm. Windy at times. |
|
|
|
|
Evening |
Temperature: 81°F |
| Mostly clear with a slight chance of showers or thundershowers. Windy at times. |
|
|
|
| Friday, July 17th, 2026 |
 |
Overnight |
Temperature: 65°F |
| A mix of clear and cloudy skies with a few showers. Slight chance of a thunderstorm. |
|
|
|
|
Morning |
Temperature: 70°F |
| Mostly sunny. Chance of a thunderstorm. Windy at times. |
|
|
|
|
Afternoon |
Temperature: 84°F |
| Sunny. Chance of a thunderstorm. Windy at times. |
|
|
|
|
Evening |
Temperature: 83°F |
| Clear. Chance of a thunderstorm. |
|
|
|
| Saturday, July 18th, 2026 |
 |
Overnight |
Temperature: 75°F |
| A mix of cloudy and clear skies. Chance of a thunderstorm. |
|
|
|
|
Morning |
Temperature: 77°F |
| Sunny. Slight chance of a thunderstorm. |
|
|
|
|
Afternoon |
Temperature: 89°F |
| Sunny. Chance of a thunderstorm. Windy at times. |
|
|
|
|
Evening |
Temperature: 85°F |
| Mostly clear. Slight chance of a thunderstorm. Windy at times. |
|
|
|
| Sunday, July 19th, 2026 |
|
Overnight |
Temperature: 75°F |
| Mostly clear. Windy at times. |
|
|
|
|
Morning |
Temperature: 72°F |
| Mostly sunny. Windy. |
|
|
|
|
Afternoon |
Temperature: 82°F |
| Sunny. Windy. |
|
|
|
|
Evening |
Temperature: 76°F |
| Mostly clear. Windy at times. |
|
|
|
| Monday, July 20th, 2026 |
|
Overnight |
Temperature: 63°F |
| Clear. |
|
|
|
|
Morning |
Temperature: 63°F |
| Sunny. |
|
|
|
|
Afternoon |
Temperature: 77°F |
| Sunny. Windy at times. |
|
|
|
 |
Evening |
Temperature: 75°F |
| A mix of clear and cloudy skies. Windy at times. |
|
|
|
| Tuesday, July 21st, 2026 |
|
Overnight |
Temperature: 68°F |
| A mix of cloudy and clear skies. |
|
|
|
 |
Morning |
Temperature: 69°F |
| A mix of sun and cloud. Windy at times. |
|
|
|
 |
Afternoon |
Temperature: 80°F |
| A mix of cloud and sun. |
|
|
|
|
Evening |
Temperature: 73°F |
| Clear. |
|
|
|
| Wednesday, July 22nd, 2026 |
|
Overnight |
Temperature: 60°F |
| Mostly clear. |
|
|
|
|
Morning |
Temperature: 64°F |
| Sunny. |
|
|
|
|
Afternoon |
Temperature: 83°F |
| Sunny. |
|
|
|
|
Evening |
Temperature: 79°F |
| Clear with cloudy periods. |
|
|
|
| Thursday, July 23rd, 2026 |
|
Overnight |
Temperature: 62°F |
| Clear with cloudy periods. |
|
|
|
|
Morning |
Temperature: 67°F |
| Sunny with cloudy periods. Slight chance of a thunderstorm. |
|
|
|
|
Afternoon |
Temperature: 84°F |
| Sunny with cloudy periods. Chance of a thunderstorm. Windy at times. |
|
|
|
|
Evening |
Temperature: 63°F |
| Clear with cloudy periods with a few showers. Windy at times. |
|
|
|
