One Week from Today!

Hello Everyone,
One week from today we will leave for Africa! I have been checking the weather and so far for Cape Town, it looks to be in the high 50's low 60's with rain at the tip. At Zulu Nayla our second stop the weather has been in the low 70's. Zambia/Botswana our last stop is the warmest with weather currently in the low 80's. How does one pack for the variety of temperatures? We packed our educational supplies and have about 55 pounds between us. Most of the supplies will be delivered to the school in Zambia, so we will be carrying the supplies with us most of the way! We found large baggies at Target. I used them for my trip to China and found packing my clothes in baggies was ideal!