Yellow advisoryFrost · in effect until 11:01 AMDetails
30-day outlook · Perth
14-day forecast →Sep 2521°9°5%
2623°8°Full moon
2722°9°14%
2822°9°13%
2923°10°5%
3023°13°85%
Oct 123°14°16%
227°17°10%
322°14°Last quarter
423°12°76%
520°11°90%
611°6°43%
710°2°7%
813°3°6%
9avg15°4°
10avg15°4°New moon
11avg14°4°
12avg14°3°
13avg14°3°
14avg14°3°
15avg13°3°
16avg13°3°
17avg13°2°
18avg13°2°First quarter
19avg12°2°
20avg12°2°
21avg12°2°
22avg12°2°
23avg11°1°
24avg11°1°
TodayForecast, days 1–14Avg — typical for the date, not a forecast
Days 1–14 at a glance
Today →| Day | Weather | High | Low | Precip | Source |
|---|---|---|---|---|---|
| Today Sep 25 | Sunny | 21° | 9° | 5% · 0 mm | Forecast |
| Sat Sep 26 | Sunny | 23° | 8° | 11% · 0 mm | Forecast |
| Sun Sep 27 | Partly cloudy | 22° | 9° | 14% · 0 mm | Forecast |
| Mon Sep 28 | Partly cloudy | 22° | 9° | 13% · 0 mm | Forecast |
| Tue Sep 29 | Partly cloudy | 23° | 10° | 5% · 0 mm | Forecast |
| Wed Sep 30 | Partly cloudy | 23° | 13° | 85% · 9 mm | Forecast |
| Thu Oct 1 | Mostly cloudy | 23° | 14° | 16% · 0 mm | Outlook |
| Fri Oct 2 | Mostly cloudy | 27° | 17° | 10% · 0 mm | Outlook |
| Sat Oct 3 | Showers | 22° | 14° | 88% · 7 mm | Outlook |
| Sun Oct 4 | Mostly cloudy | 23° | 12° | 76% · 2 mm | Outlook |
| Mon Oct 5 | Showers | 20° | 11° | 90% · 11 mm | Outlook |
| Tue Oct 6 | Showers | 11° | 6° | 43% · 0.5 mm | Outlook |
| Wed Oct 7 | Sunny | 10° | 2° | 7% · 0 mm | Outlook |
| Thu Oct 8 | Sunny | 13° | 3° | 6% · 0 mm | Outlook |
Days 15–30 · what is typical
No forecast is reliable beyond two weeks, so these are the normals for Perth on those dates: how highs and lows usually change, how much rain or snow to expect, daylight and the Moon.
| Dates | Normal high | Normal low | Precip | Daylight | Moon |
|---|---|---|---|---|---|
| Oct 9–17 9 days | 15° → 13° | 4° → 2° | ≈24 mm | 11 h 17 → 10 h 53 | New moon Oct 10 |
| Oct 18–24 7 days | 13° → 11° | 2° → 1° | ≈18 mm | 10 h 50 → 10 h 32 | First quarter Oct 18 |
Climate normals 1981–2010, Drummond Centre station · Environment and Climate Change Canada
Days 1–7: Environment and Climate Change Canada (Smiths Falls - Perth - Eastern Lanark County) · days 8–14: WeatherAPI.com · days 15–30: Climate normals 1981–2010, Drummond Centre station · Environment and Climate Change Canada · 44.9001°N, 76.2494°W