✔ 最佳答案
刚才网上(The internet just said that)明天(tomorrow)天气预报(the weather forecast)不但(will not only)冷(be cold)而且也(會)(but also)下雪(snow)
刚才 means -- just a short time ago, 网上 means – on the internet, so 刚才网上 means - The internet just said that. And if you add “said” – “說”, to the end of 刚才网上, that is ok.
Actually here in Taiwan, we usually will say “剛才網路上 or 剛才網路上說” instead of “刚才网路”. Any way you’re learning Simplified version Chinese, you just follow it.
And In the above Chinese sentence, "也 or 也會" is optional.