Updated: Wednesday, 16 Jul 2025 11:24 PM SAST 
Day High Temp (°F) Low Temp (°F) Mean Temp (°F) Dewpoint Temp (°F) Humidity (%) Wind Speed (mph) Precipitation (")
Forcast Dep. Forcast Dep. Forcast Dep. Forcast Dep. Forcast Dep. Forcast Dep. Forcast Dep.
Thu, Jul 17 56 -8.3 42 -1.9 49 -5.1 49 +2.6 83 -5.8 4 +2.5 0.11" --
Fri, Jul 18 65 -3.3 45 -3.9 55 -3.6 46 -3.8 52 -31.3 3 +6.7 0.02" -0.05
Sat, Jul 19 73 -7.2 40 -0.7 57 -3.9 37 -1.8 28 -18.9 8 0 -0.03
Sun, Jul 20 75 -7.6 46 +4.7 60 -1.5 40 +2.0 29 -8.8 8 +3.1 +0.07
Mon, Jul 21 65 -9.6 46 +1.9 55 -3.9 45 +6.8 52 +3.3 3 -1.4 -0.05
Tue, Jul 22 65 -5.5 40 +0.8 53 -2.4 48 +6.0 55 -8.9 5 +2.5 --
Wed, Jul 23 63 -8.5 44 +2.4 53 -3.0 48 +0.7 60 -12.8 4 +1.5 -0.02
Thu, Jul 24 60 -5.7 41 +3.9 51 -0.9 42 +1.1 51 -15.2 5 -2.9 -0.05
Fri, Jul 25 59 -12.6 42 +3.5 50 -4.5 52 +14.0 78 +21.8 20 +9.3 0.77" -0.03
Sat, Jul 26 56 -16.3 41 +0.7 48 -7.8 42 +1.4 63 +1.1 14 +10.0 0.41" +0.42
Sun, Jul 27 55 -15.6 39 +0.9 47 -7.3 33 -3.6 46 -8.5 2 +13.3 +0.43
Mon, Jul 28 55 -13.5 40 +0.1 48 -6.8 32 -5.4 42 -18.7 4 +5.8 +0.12
Tue, Jul 29 62 -7.5 41 -1.4 51 -4.5 34 -8.6 36 -32.2 8 -1.4 -0.04
Wed, Jul 30 62 -8.2 42 +0.6 52 -3.8 28 -19.9 27 -43.7 20 +13.0 -0.05
The values above are the forecast deviations from normal for the day. The deviations are derived from a 10-year average between 2001 and 2010 for Clanwilliam, South Africa.