The phrase "unpredictable weather" means that the weather is difficult to predict or guess accurately. It suggests that the changes in weather conditions or patterns are hard to anticipate or foresee. Full definition
The emergence of resistant pests and diseases coupled with unpredictable weather patterns has devastated crop yields and left many communities facing imminent drought. (greenbeltmovement.org)
The emergence of resistant pests and diseases coupled with unpredictable weather patterns has devastated crop yields and left many communities facing imminent drought. (greenbeltmovement.org)
Having unpredictable weather in a sim just makes sense to me. (n4g.com)