An extreme cold warning is in effect for Dufferin County.
Here is the 7-day weather forecast for Orangeville, via Environment Canada:
| Today | A mix of sun and cloud. 30 percent chance of flurries late this afternoon. Wind up to 15 km/h. High minus 11. Wind chill minus 30 this morning and minus 14 this afternoon. Risk of frostbite. UV index 2 or low. |
| Tonight | Partly cloudy with 30 percent chance of flurries this evening. A few flurries beginning late this evening. Local amount 2 cm. Wind becoming southwest 20 km/h late this evening. Low minus 14. Wind chill minus 22 this evening. |
| Tuesday | A few flurries ending in the morning then mainly cloudy. Wind up to 15 km/h. High minus 5. Wind chill minus 14 in the morning and minus 7 in the afternoon. UV index 2 or low. |
| Night | Cloudy. Low minus 12. |
| Wednesday | Periods of rain. High plus 3. |
| Night | Rain. Low minus 3. |
| Thursday | Snow. High minus 4. |
| Night | Snow. Low minus 16. |
| Friday | A mix of sun and cloud. High minus 10. |
| Night | Cloudy with 60 percent chance of flurries. Low minus 13. |
| Saturday | Cloudy with 60 percent chance of flurries. High minus 4. |
| Night | Cloudy periods. Low minus 11. |
| Sunday | A mix of sun and cloud. High minus 3. |
